Stratix II GX Device Handbook, Volume 1 101 Innovation Drive San Jose, CA 95134 www.altera.com SIIGX5V1-4.4 Copyright (c) 2009 Altera Corporation. All rights reserved. Altera, The Programmable Solutions Company, the stylized Altera logo, specific device designations, and all other words and logos that are identified as trademarks and/or service marks are, unless noted otherwise, the trademarks and service marks of Altera Corporation in the U.S. and other countries. All other product or service names are the property of their respective holders. Altera products are protected under numerous U.S. and foreign patents and pending applications, maskwork rights, and copyrights. Altera warrants performance of its semiconductor products to current specifications in accordance with Altera's standard warranty, but reserves the right to make changes to any products and services at any time without notice. Altera assumes no responsibility or liability arising out of the application or use of any information, product, or service described herein except as expressly agreed to in writing by Altera Corporation. Altera customers are advised to obtain the latest version of device specifications before relying on any published information and before placing orders for products or services. ii Altera Corporation Contents Section I. Stratix II GX Device Data Sheet Chapter 1. Introduction Features ................................................................................................................................................... 1-1 Referenced Document ........................................................................................................................... 1-5 Document Revision History ................................................................................................................. 1-5 Chapter 2. Stratix II GX Architecture Transceivers ............................................................................................................................................ 2-1 Transmitter Path ............................................................................................................................... 2-4 Receiver Path ................................................................................................................................... 2-14 Loopback Modes ............................................................................................................................ 2-30 Transceiver Clocking ..................................................................................................................... 2-35 Other Transceiver Features ........................................................................................................... 2-41 Logic Array Blocks .............................................................................................................................. 2-44 LAB Interconnects .......................................................................................................................... 2-45 LAB Control Signals ....................................................................................................................... 2-46 Adaptive Logic Modules .................................................................................................................... 2-48 ALM Operating Modes ................................................................................................................. 2-50 Arithmetic Mode ............................................................................................................................ 2-55 Shared Arithmetic Mode ............................................................................................................... 2-58 Shared Arithmetic Chain ............................................................................................................... 2-60 Register Chain ................................................................................................................................. 2-61 Clear and Preset Logic Control .................................................................................................... 2-63 MultiTrack Interconnect ..................................................................................................................... 2-63 TriMatrix Memory ............................................................................................................................... 2-69 M512 RAM Block ............................................................................................................................ 2-70 M4K RAM Blocks ........................................................................................................................... 2-73 M-RAM Block ................................................................................................................................. 2-75 Digital Signal Processing (DSP) Block .............................................................................................. 2-81 Modes of Operation ....................................................................................................................... 2-85 DSP Block Interface ........................................................................................................................ 2-85 PLLs and Clock Networks .................................................................................................................. 2-89 Global and Hierarchical Clocking ................................................................................................ 2-89 Enhanced and Fast PLLs ............................................................................................................... 2-97 Enhanced PLLs ............................................................................................................................. 2-109 Fast PLLs ........................................................................................................................................ 2-109 I/O Structure ...................................................................................................................................... 2-110 Double Data Rate I/O Pins ......................................................................................................... 2-118 External RAM Interfacing ........................................................................................................... 2-122 Altera Corporation iii Contents Stratix II GX Device Handbook, Volume 1 Programmable Drive Strength ................................................................................................... Open-Drain Output ...................................................................................................................... Bus Hold ........................................................................................................................................ Programmable Pull-Up Resistor ................................................................................................ Advanced I/O Standard Support .............................................................................................. On-Chip Termination .................................................................................................................. MultiVolt I/O Interface ............................................................................................................... High-Speed Differential I/O with DPA Support .......................................................................... Dedicated Circuitry with DPA Support .................................................................................... Fast PLL and Channel Layout .................................................................................................... Referenced Documents ..................................................................................................................... Document Revision History ............................................................................................................. 2-124 2-125 2-125 2-126 2-126 2-130 2-133 2-136 2-138 2-141 2-142 2-143 Chapter 3. Configuration & Testing IEEE Std. 1149.1 JTAG Boundary-Scan Support ............................................................................... 3-1 SignalTap II Embedded Logic Analyzer ............................................................................................ 3-3 Configuration ......................................................................................................................................... 3-3 Operating Modes .............................................................................................................................. 3-4 Configuration Schemes ................................................................................................................... 3-6 Device Security Using Configuration Bitstream Encryption ..................................................... 3-7 Device Configuration Data Decompression ................................................................................. 3-7 Remote System Upgrades ............................................................................................................... 3-8 Configuring Stratix II GX FPGAs with JRunner .......................................................................... 3-8 Programming Serial Configuration Devices with SRunner ....................................................... 3-9 Configuring Stratix II FPGAs with the MicroBlaster Driver ..................................................... 3-9 PLL Reconfiguration ........................................................................................................................ 3-9 Temperature Sensing Diode (TSD) ................................................................................................... 3-10 Automated Single Event Upset (SEU) Detection ............................................................................ 3-12 Custom-Built Circuitry .................................................................................................................. 3-12 Software Interface ........................................................................................................................... 3-12 Referenced Documents ....................................................................................................................... 3-13 Document Revision History ............................................................................................................... 3-13 Chapter 4. DC and Switching Characteristics Operating Conditions ........................................................................................................................... 4-1 Absolute Maximum Ratings ........................................................................................................... 4-1 Recommended Operating Conditions .......................................................................................... 4-2 Transceiver Block Characteristics .................................................................................................. 4-3 DC Electrical Characteristics ........................................................................................................ 4-42 I/O Standard Specifications ......................................................................................................... 4-43 Bus Hold Specifications ................................................................................................................. 4-56 On-Chip Termination Specifications ........................................................................................... 4-56 Pin Capacitance .............................................................................................................................. 4-58 Power Consumption ........................................................................................................................... 4-59 Timing Model ....................................................................................................................................... 4-59 Preliminary and Final Timing ...................................................................................................... 4-59 I/O Timing Measurement Methodology .................................................................................... 4-60 iv Altera Corporation Stratix II GX Device Handbook, Volume 1 Contents Internal Timing Parameters .......................................................................................................... 4-69 Stratix II GX Clock Timing Parameters ....................................................................................... 4-76 Clock Network Skew Adders ....................................................................................................... 4-81 IOE Programmable Delay ............................................................................................................. 4-82 Default Capacitive Loading of Different I/O Standards .......................................................... 4-83 I/O Delays ....................................................................................................................................... 4-84 Maximum Input and Output Clock Toggle Rate ....................................................................... 4-98 Duty Cycle Distortion ....................................................................................................................... 4-118 DCD Measurement Techniques ................................................................................................. 4-118 High-Speed I/O Specifications ........................................................................................................ 4-126 PLL Timing Specifications ................................................................................................................ 4-130 External Memory Interface Specifications ..................................................................................... 4-132 JTAG Timing Specifications ............................................................................................................. 4-134 Referenced Documents ..................................................................................................................... 4-136 Document Revision History ............................................................................................................. 4-137 Chapter 5. Reference and Ordering Information Device Pin-Outs ..................................................................................................................................... Ordering Information ........................................................................................................................... Referenced Documents ......................................................................................................................... Document Revision History ................................................................................................................. Altera Corporation 5-1 5-1 5-2 5-2 v Contents vi Stratix II GX Device Handbook, Volume 1 Altera Corporation Chapter Revision Dates The chapters in this book, Stratix II GX Device Handbook, Volume 1, were revised on the following dates. Where chapters or groups of chapters are available separately, part numbers are listed. Chapter 1. Introduction Revised: Part number: October 2007 SIIGX51001-1.6 Chapter 2. Stratix II GX Architecture Revised: October 2007 Part number: SIIGX51003-2.2 Chapter 3. Configuration & Testing Revised: October 2007 Part number: SIIGX51005-1.4 Chapter 4. DC and Switching Characteristics Revised: June 2009 Part number: SIIGX51006-4.6 Chapter 5. Reference and Ordering Information Revised: August 2007 Part number: SIIGX51007-1.3 Altera Corporation vii Chapter Revision Dates viii Stratix II GX Device Handbook, Volume 1 Altera Corporation About this Handbook This handbook provides comprehensive information about the Altera(R) Stratix II GX family of devices. How to Contact Altera For the most up-to-date information about Altera products, refer to the following table. Contact (1) Contact Method Address Technical support Website www.altera.com/support Technical training Website www.altera.com/training Email custrain@altera.com Product literature Email www.altera.com/literature Altera literature services Website literature@altera.com Non-technical support (General) Email (Software Licensing) Email nacomp@altera.com authorization@altera.com Note to table: (1) Typographic Conventions Visual Cue You can also contact your local Altera sales office or sales representative. This document uses the typographic conventions shown below. Meaning Bold Type with Initial Capital Letters Command names, dialog box titles, checkbox options, and dialog box options are shown in bold, initial capital letters. Example: Save As dialog box. bold type External timing parameters, directory names, project names, disk drive names, filenames, filename extensions, and software utility names are shown in bold type. Examples: fMAX, \qdesigns directory, d: drive, chiptrip.gdf file. Italic Type with Initial Capital Letters Document titles are shown in italic type with initial capital letters. Example: AN 75: High-Speed Board Design. Altera Corporation ix Preliminary Typographic Conventions Visual Cue Italic type Stratix II GX Device Handbook, Volume 1 Meaning Internal timing parameters and variables are shown in italic type. Examples: tPIA, n + 1. Variable names are enclosed in angle brackets (< >) and shown in italic type. Example: <file name>, <project name>.pof file. Initial Capital Letters Keyboard keys and menu names are shown with initial capital letters. Examples: Delete key, the Options menu. "Subheading Title" References to sections within a document and titles of on-line help topics are shown in quotation marks. Example: "Typographic Conventions." Courier type Signal and port names are shown in lowercase Courier type. Examples: data1, tdi, input. Active-low signals are denoted by suffix n, e.g., resetn. Anything that must be typed exactly as it appears is shown in Courier type. For example: c:\qdesigns\tutorial\chiptrip.gdf. Also, sections of an actual file, such as a Report File, references to parts of files (e.g., the AHDL keyword SUBDESIGN), as well as logic function names (e.g., TRI) are shown in Courier. 1., 2., 3., and a., b., c., etc. Numbered steps are used in a list of items when the sequence of the items is important, such as the steps listed in a procedure. Bullets are used in a list of items when the sequence of the items is not important. * v The checkmark indicates a procedure that consists of one step only. 1 The hand points to information that requires special attention. c A caution calls attention to a condition or possible situation that can damage or destroy the product or the user's work. w A warning calls attention to a condition or possible situation that can cause injury to the user. r The angled arrow indicates you should press the Enter key. f The feet direct you to more information on a particular topic. x Preliminary Altera Corporation Section I. Stratix II GX Device Data Sheet This section provides designers with the data sheet specifications for Stratix(R) II GX devices. They contain feature definitions of the transceivers, internal architecture, configuration, and JTAG boundary-scan testing information, DC operating conditions, AC timing parameters, a reference to power consumption, and ordering information for Stratix II GX devices. This section includes the following chapters: Revision History Altera Corporation Chapter 1, Introduction Chapter 2, Stratix II GX Architecture Chapter 3, Configuration & Testing Chapter 4, DC and Switching Characteristics Chapter 5, Reference and Ordering Information Refer to each chapter for its own specific revision history. For information on when each chapter was updated, refer to the Chapter Revision Dates section, which appears in the full handbook. Section I-1 Stratix II GX Device Data Sheet Section I-2 Stratix II GX Device Handbook, Volume 1 Altera Corporation 1. Introduction SIIGX51001-1.6 The Stratix(R) II GX family of devices is Altera's third generation of FPGAs to combine high-speed serial transceivers with a scalable, high-performance logic array. Stratix II GX devices include 4 to 20 high-speed transceiver channels, each incorporating clock and data recovery unit (CRU) technology and embedded SERDES capability at data rates of up to 6.375 gigabits per second (Gbps). The transceivers are grouped into four-channel transceiver blocks and are designed for low power consumption and small die size. The Stratix II GX FPGA technology is built upon the Stratix II architecture and offers a 1.2-V logic array with unmatched performance, flexibility, and time-to-market capabilities. This scalable, high-performance architecture makes Stratix II GX devices ideal for high-speed backplane interface, chip-to-chip, and communications protocol-bridging applications. Features This section lists the Stratix II GX device features. Altera Corporation October 2007 Main device features: TriMatrix memory consisting of three RAM block sizes to implement true dual-port memory and first-in first-out (FIFO) buffers with performance up to 550 MHz Up to 16 global clock networks with up to 32 regional clock networks per device region High-speed DSP blocks provide dedicated implementation of multipliers (at up to 450 MHz), multiply-accumulate functions, and finite impulse response (FIR) filters Up to four enhanced PLLs per device provide spread spectrum, programmable bandwidth, clock switch-over, real-time PLL reconfiguration, and advanced multiplication and phase shifting Support for numerous single-ended and differential I/O standards High-speed source-synchronous differential I/O support on up to 71 channels Support for source-synchronous bus standards, including SPI-4 Phase 2 (POS-PHY Level 4), SFI-4.1, XSBI, UTOPIA IV, NPSI, and CSIX-L1 Support for high-speed external memory, including quad data rate (QDR and QDRII) SRAM, double data rate (DDR and DDR2) SDRAM, and single data rate (SDR) SDRAM 1-1 Features Support for multiple intellectual property megafunctions from Altera(R) MegaCore(R) functions and Altera Megafunction Partners Program (AMPPSM) megafunctions Support for design security using configuration bitstream encryption Support for remote configuration updates Transceiver block features: High-speed serial transceiver channels with clock data recovery (CDR) provide 600-megabits per second (Mbps) to 6.375-Gbps full-duplex transceiver operation per channel Devices available with 4, 8, 12, 16, or 20 high-speed serial transceiver channels providing up to 255 Gbps of serial bandwidth (full duplex) Dynamically programmable voltage output differential (VOD) and pre-emphasis settings for improved signal integrity Support for CDR-based serial protocols, including PCI Express, Gigabit Ethernet, SDI, Altera's SerialLite II, XAUI, CEI-6G, CPRI, Serial RapidIO, SONET/SDH Dynamic reconfiguration of transceiver channels to switch between multiple protocols and data rates Individual transmitter and receiver channel power-down capability for reduced power consumption during non-operation Adaptive equalization (AEQ) capability at the receiver to compensate for changing link characteristics Selectable on-chip termination resistors (100, 120, or 150 ) for improved signal integrity on a variety of transmission media Programmable transceiver-to-FPGA interface with support for 8-, 10-, 16-, 20-, 32-, and 40-bit wide data transfer 1.2- and 1.5-V pseudo current mode logic (PCML) for 600 Mbps to 6.375 Gbps (AC coupling) Receiver indicator for loss of signal (available only in PIPE mode) Built-in self test (BIST) Hot socketing for hot plug-in or hot swap and power sequencing support without the use of external devices Rate matcher, byte-reordering, bit-reordering, pattern detector, and word aligner support programmable patterns Dedicated circuitry that is compliant with PIPE, XAUI, and GIGE Built-in byte ordering so that a frame or packet always starts in a known byte lane Transmitters with two PLL inputs for each transceiver block with independent clock dividers to provide varying clock rates on each of its transmitters 1-2 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Introduction f 8B/10B encoder and decoder perform 8-bit to 10-bit encoding and 10-bit to 8-bit decoding Phase compensation FIFO buffer performs clock domain translation between the transceiver block and the logic array Receiver FIFO resynchronizes the received data with the local reference clock Channel aligner compliant with XAUI Certain transceiver blocks can be bypassed. Refer to the Stratix II GX Architecture chapter in volume 1 of the Stratix II GX Device Handbook for more details. Table 1-1 lists the Stratix II GX device features. Table 1-1. Stratix II GX Device Features (Part 1 of 2) EP2SGX30C/D EP2SGX60C/D/E EP2SGX90E/F EP2SGX130/G Feature C ALMs C 13,552 Equivalent LEs Transceiver channels D E E F 24,176 33,880 4 D 36,384 60,440 8 4 8 53,016 90,960 12 132,540 12 16 600 Mbps to 6.375 Gbps Source-synchronous receive channels (1) 31 31 31 42 47 59 73 Source-synchronous transmit channels 29 29 29 42 45 59 71 M512 RAM blocks (32 x 18 bits) 202 329 488 699 M4K RAM blocks (128 x 36 bits) 144 255 408 609 M-RAM blocks (4K x 144 bits) 1 2 4 6 Total RAM bits 1,369,728 2,544,192 4,520,448 6,747,840 Embedded multipliers (18 x 18) 64 144 192 252 DSP blocks 16 48 63 PLLs 4 4 4 8 8 8 361 364 364 534 Altera Corporation October 2007 600 Mbps to 6.375 Gbps 20 Transceiver data rate Maximum user I/O pins 600 Mbps to 6.375 Gbps G 36 558 650 600 Mbps to 6.375 Gbps 734 1-3 Stratix II GX Device Handbook, Volume 1 Features Table 1-1. Stratix II GX Device Features (Part 2 of 2) EP2SGX30C/D EP2SGX60C/D/E EP2SGX90E/F EP2SGX130/G Feature C Package D C 780-pin FineLine BGA D E 780-pin 1,152-pin FineLine BGA FineLine BGA E F G 1,152-pin FineLine BGA 1,508-pin FineLine BGA 1,508-pin FineLine BGA Note to Table 1-1: (1) Includes two sets of dual-purpose differential pins that can be used as two additional channels for the differential receiver or differential clock inputs. Stratix II GX devices are available in space-saving FineLine BGA packages (refer to Table 1-2). All Stratix II GX devices support vertical migration within the same package. Vertical migration means that you can migrate to devices whose dedicated pins, configuration pins, and power pins are the same for a given package across device densities. For I/O pin migration across densities, you must cross-reference the available I/O pins using the device pin-outs for all planned densities of a given package type to identify which I/O pins are migratable. Table 1-3 lists the Stratix II GX device package sizes. Table 1-2. Stratix II GX Package Options (Pin Counts and Transceiver Channels) Source-Synchronous Channels Device Transceiver Channels Maximum User I/O Pin Count Receive (1) Transmit 780-Pin FineLine BGA (29 mm) 1,152-Pin FineLine BGA (35 mm) 1,508-Pin FineLine BGA (40 mm) EP2SGX30C 4 31 29 361 -- -- EP2SGX60C 4 31 29 364 -- -- EP2SGX30D 8 31 29 361 -- -- EP2SGX60D 8 31 29 364 -- -- EP2SGX60E 12 42 42 -- 534 -- EP2SGX90E 12 47 45 -- 558 -- EP2SGX90F 16 59 59 -- -- 650 EP2SGX130G 20 73 71 -- -- 734 Note to Table 1-2: (1) Includes two differential clock inputs that can also be used as two additional channels for the differential receiver. 1-4 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Introduction Table 1-3. Stratix II GX FineLine BGA Package Sizes Dimension 780 Pins 1,152 Pins 1,508 Pins Pitch (mm) 1.00 1.00 1.00 (mm2) 841 1,225 1,600 29 x 29 35 x 35 40 x 40 Area Length width (mm x mm) Referenced Document This chapter references the following document: Document Revision History Table 1-4 shows the revision history for this chapter. Stratix II GX Architecture chapter in volume 1 of the Stratix II GX Device Handbook Table 1-4. Document Revision History Date and Document Version October 2007, v1.6 Changes Made Summary of Changes Updated "Features" section. Minor text edits. August 2007, v1.5 Added "Referenced Documents" section. Minor text edits. February 2007, v1.4 Changed 622 Mbps to 600 Mbps on page 1-2 and Table 1-1. Deleted "DC coupling" from the Transceiver Block Features list. Changed 4 to 6 in the PLLs row (columns 3 and 4) of Table 1-1. Added the "Document Revision History" section to this chapter. June 2006, v1.3 Updated Table 1-2. April 2006, v1.2 Updated Table 1-1. Updated Table 1-2. February 2006, v1.1 Updated Table 1-1. October 2005 v1.0 Added chapter to the Stratix II GX Device Handbook. Altera Corporation October 2007 Added support information for the Stratix II GX device. Updated numbers for receiver channels and user I/O pin counts in Table 1-2. 1-5 Stratix II GX Device Handbook, Volume 1 Document Revision History 1-6 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 2. Stratix II GX Architecture SIIGX51003-2.2 Transceivers Stratix(R) II GX devices incorporate dedicated embedded circuitry on the right side of the device, which contains up to 20 high-speed 6.375-Gbps serial transceiver channels. Each Stratix II GX transceiver block contains four full-duplex channels and supporting logic to transmit and receive high-speed serial data streams. The transceivers deliver bidirectional point-to-point data transmissions, with up to 51 Gbps (6.375 Gbps per channel) of full-duplex data transmission per transceiver block. Figure 2-1 shows the function blocks that make up a transceiver channel within the Stratix II GX device. Figure 2-1. Stratix II GX Transceiver Block Diagram PMA Analog Section PCS Digital Section n Deserializer (1) Receiver PLL Reference Clock Transmitter PLL Word Aligner Rate Matcher Clock Recovery Unit Reference Clock FPGA Fabric XAUI Lane Deskew 8B/10B Decoder Byte Deserializer Byte Ordering Phase Compensation FIFO Buffer m (2) n Serializer (1) 8B/10B Encoder Byte Serializer Phase Compensation FIFO Buffer m (2) Notes to Figure 2-1: (1) (2) n represents the number of bits in each word that need to be serialized by the transmitter portion of the PMA or have been deserialized by the receiver portion of the PMA. n = 8, 10, 16, or 20. m represents the number of bits in the word that pass between the FPGA logic and the PCS portion of the transceiver. m = 8, 10, 16, 20, 32, or 40. Transceivers within each block are independent and have their own set of dividers. Therefore, each transceiver can operate at different frequencies. Each block can select from two reference clocks to provide two clock domains that each transceiver can select from. Altera Corporation October 2007 2-1 Transceivers There are up to 20 transceiver channels available on a single Stratix II GX device. Table 2-1 shows the number of transceiver channels and their serial bandwidth for each Stratix II GX device. Table 2-1. Stratix II GX Transceiver Channels Number of Transceiver Channels Serial Bandwidth (Full Duplex) EP2SGX30C 4 51 Gbps EP2SGX60C 4 51 Gbps EP2SGX30D 8 102 Gbps EP2SGX60D 8 102 Gbps EP2SGX60E 12 153 Gbps EP2SGX90E 12 153 Gbps Device EP2SGX90F 16 204 Gbps EP2SGX130G 20 255 Gbps Figure 2-2 shows the elements of the transceiver block, including the four transceiver channels, supporting logic, and I/O buffers. Each transceiver channel consists of a receiver and transmitter. The supporting logic contains two transmitter PLLs to generate the high-speed clock(s) used by the four transmitters within that block. Each of the four transmitter channels has its own individual clock divider. The four receiver PLLs within each transceiver block generate four recovered clocks. The transceiver channels can be configured in one of the following functional modes: PCI Express (PIPE) OIF CEI PHY Interface SONET/SDH Gigabit Ethernet (GIGE) XAUI Basic (600 Mbps to 3.125 Gbps single-width mode and 1 Gbps to 6.375 Gbps double-width mode) SDI (HD, 3G) CPRI (614 Mbps, 1228 Mbps, 2456 Mbps) Serial RapidIO (1.25 Gbps, 2.5 Gbps, 3.125 Gbps) 2-2 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figure 2-2. Elements of the Transceiver Block Stratix II GX Logic Array Transceiver Block RX1 Channel 1 TX1 RX0 Channel 0 TX0 Supporting Blocks (PLLs, State Machines, Programming) REFCLK_1 REFCLK_0 RX2 Channel 2 TX2 RX3 Channel 3 TX3 Each Stratix II GX transceiver channel consists of a transmitter and receiver. The transceivers are grouped in four and share PLL resources. Each transmitter has access to one of two PLLs. The transmitter contains the following: Transmitter phase compensation first-in first-out (FIFO) buffer Byte serializer (optional) 8B/10B encoder (optional) Serializer (parallel-to-serial converter) Transmitter differential output buffer The receiver contains the following: Receiver differential input buffer Receiver lock detector and run length checker Clock recovery unit (CRU) Deserializer Pattern detector Word aligner Lane deskew Rate matcher (optional) 8B/10B decoder (optional) Byte deserializer (optional) Byte ordering Receiver phase compensation FIFO buffer Designers can preset Stratix II GX transceiver functions using the Quartus(R) II software. In addition, pre-emphasis, equalization, and differential output voltage (VOD) are dynamically programmable. Each Stratix II GX transceiver channel supports various loopback modes and is Altera Corporation October 2007 2-3 Stratix II GX Device Handbook, Volume 1 Transceivers capable of built-in self test (BIST) generation and verification. The ALT2GXB megafunction in the Quartus II software provides a step-by-step menu selection to configure the transceiver. Figure 2-1 shows the block diagram for the Stratix II GX transceiver channel. Stratix II GX transceivers provide PCS and PMA implementations for all supported protocols. The PCS portion of the transceiver consists of the word aligner, lane deskew FIFO buffer, rate matcher FIFO buffer, 8B/10B encoder and decoder, byte serializer and deserializer, byte ordering, and phase compensation FIFO buffers. Each Stratix II GX transceiver channel is also capable of BIST generation and verification in addition to various loopback modes. The PMA portion of the transceiver consists of the serializer and deserializer, the CRU, and the high-speed differential transceiver buffers that contain pre-emphasis, programmable on-chip termination (OCT), programmable voltage output differential (VOD), and equalization. Transmitter Path This section describes the data path through the Stratix II GX transmitter. The Stratix II GX transmitter contains the following modules: Transmitter PLLs Access to one of two PLLs Transmitter logic array interface Transmitter phase compensation FIFO buffer Byte serializer 8B/10B encoder Serializer (parallel-to-serial converter) Transmitter differential output buffer Transmitter PLLs Each transceiver block has two transmitter PLLs which receive two reference clocks to generate timing and the following clocks: High-speed clock used by the serializer to transmit the high-speed differential transmitter data Low-speed clock to load the parallel transmitter data of the serializer The serializer uses high-speed clocks to transmit data. The serializer is also referred to as parallel in serial out (PISO). The high-speed clock is fed to the local clock generation buffer. The local clock generation buffers divide the high-speed clock on the transmitter to a desired frequency on a per-channel basis. Figure 2-3 is a block diagram of the transmitter clocks. 2-4 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figure 2-3. Clock Distribution for the Transmitters Note (1) Transmitter High-Speed & Low-Speed Clocks Transmitter Channel [3..2] TX Clock Gen Block Transmitter Local Clock Divider Block Central Block Reference Clocks (refclks, Global Clock (1), Inter-Transceiver Lines) Transmitter PLL Block Central Clock Divider Block Transmitter Channel [1..0] TX Clock Gen Block Transmitter Local Clock Divider Block Transmitter High-Speed & Low-Speed Clocks Note to Figure 2-3: (1) The global clock line must be driven by an input pin. The transmitter PLLs in each transceiver block clock the PMA and PCS circuitry in the transmit path. The Quartus II software automatically powers down the transmitter PLLs that are not used in the design. Figure 2-4 is a block diagram of the transmitter PLL. The transmitter phase/frequency detector references the clock from one of the following sources: Reference clocks Reference clock from the adjacent transceiver block Inter-transceiver block clock lines Global clock line driven by input pin Two reference clocks, REFCLK0 and REFCLK1, are available per transceiver block. The inter-transceiver block bus allows multiple transceivers to use the same reference clocks. Each transceiver block has one outgoing reference clock which connects to one inter-transceiver block line. The incoming reference clock can be selected from five inter-transceiver block lines IQ[4..0] or from the global clock line that is driven by an input pin. Altera Corporation October 2007 2-5 Stratix II GX Device Handbook, Volume 1 Transceivers Figure 2-4. Transmitter PLL Block Note (1) Transmitter PLL 0 /m Inter-Transceiver Block Routing (IQ[4:0]) From PLD Dedicated Local REFCLK 0 High-Speed Transmitter PLL0 Clock up INCLK PFD dn CP+LF VCO /L / /2 2 High-Speed Transmitter PLL Clock To Inter-Transceiver Block Line Transmitter PLL 1 /m up Inter-Transceiver Block Routing (IQ[4:0]) From PLD Dedicated Local REFCLK 1 INCLK PFD dn CP+LF VCO /L High-Speed Transmitter PLL1 Clock /2 Note to Figure 2-4: (1) The global clock line must be driven by an input pin. The transmitter PLLs support data rates up to 6.375 Gbps. The input clock frequency is limited to 622.08 MHz. An optional pll_locked port is available to indicate whether the transmitter PLL is locked to the reference clock. Both transmitter PLLs have a programmable loop bandwidth parameter that can be set to low, medium, or high. The loop bandwidth parameter can be statically set in the Quartus II software. Table 2-2 lists the adjustable parameters in the transmitter PLL. Table 2-2. Transmitter PLL Specifications Parameter Specifications Input reference frequency range 50 MHz to 622.08 MHz Data rate support 600 Mbps to 6.375 Gbps Multiplication factor (W) 1, 4, 5, 8, 10, 16, 20, 25 Bandwidth Low, medium, or high 2-6 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Transmitter Phase Compensation FIFO Buffer The transmitter phase compensation FIFO buffer resides in the transceiver block at the PCS/FPGA boundary and cannot be bypassed. This FIFO buffer compensates for phase differences between the transmitter PLL clock and the clock from the PLD. After the transmitter PLL has locked to the frequency and phase of the reference clock, the transmitter FIFO buffer must be reset to initialize the read and write pointers. After FIFO pointer initialization, the PLL must remain phase locked to the reference clock. Byte Serializer The FPGA and transceiver block must maintain the same throughput. If the FPGA interface cannot meet the timing margin to support the throughput of the transceiver, the byte serializer is used on the transmitter and the byte deserializer is used on the receiver. The byte serializer takes words from the FPGA interface and converts them into smaller words for use in the transceiver. The transmit data path after the byte serializer is 8, 10, 16, or 20 bits. Refer to Table 2-3 for the transmitter data with the byte serializer enabled. The byte serializer can be bypassed when the data width is 8, 10, 16, or 20 bits at the FPGA interface. Table 2-3. Transmitter Data with the Byte Serializer Enabled Input Data Width Output Data Width 16 bits 8 bits 20 bits 10 bits 32 bits 16 bits 40 bits 20 bits If the byte serializer is disabled, the FPGA transmit data is passed without data width conversion. Altera Corporation October 2007 2-7 Stratix II GX Device Handbook, Volume 1 Transceivers Table 2-4 shows the data path configurations for the Stratix II GX device in single-width and double-width modes. 1 Refer to the section "8B/10B Encoder" on page 2-8 for a description of the single- and double-width modes. Table 2-4. Data Path Configurations Note (1) Single-Width Mode Without Byte Serialization/ Deserialization Parameter Fabric to PCS data path width (bits) Data rate range (Gbps) Double-Width Mode With Byte Serialization/ Deserialization Without Byte Serialization/ Deserialization With Byte Serialization/ Deserialization 8 or 10 16 or 20 16 or 20 32 or 40 0.6 to 2.5 0.6 to 3.125 1 to 5.0 1 to 6.375 8 or 10 8 or 10 16 or 20 16 or 20 PCS to PMA data path width (bits) Byte ordering (1) v v v v v Data symbol A (MSB) Data symbol B Data symbol C v Data symbol D (LSB) v v v v v Note to Table 2-4: (1) Designs can use byte ordering when byte serialization and deserialization are used. 8B/10B Encoder There are two different modes of operation for 8B/10B encoding. Single-width (8-bit) mode supports natural data rates from 622 Mbps to 3.125 Gbps. Double-width (16-bit cascaded) mode supports data rates above 3.125 Gbps. The encoded data has a maximum run length of five. The 8B/10B encoder can be bypassed. Figure 2-5 diagrams the 10-bit encoding process. 2-8 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figure 2-5. 8B/10B Encoding Process + 7 6 5 4 3 2 1 0 H G F E D C B A ctrl 8B/10B Conversion j h g f i e d c b a 9 8 7 6 5 4 3 2 1 0 MSB sent last LSB sent first In single-width mode, the 8B/10B encoder generates a 10-bit code group from the 8-bit data and 1-bit control identifier. In double-width mode, there are two 8B/10B encoders that are cascaded together and generate a 20-bit (2 x 10-bit) code group from the 16-bit (2 x 8-bit) data + 2-bit (2 x 1-bit) control identifier. Figure 2-6 shows the 20-bit encoding process. The 8B/10B encoder conforms to the IEEE 802.3 1998 edition standards. Figure 2-6. 16-Bit to 20-Bit Encoding Process CTRL[1..0] H' G' F' E' D' C' B' A' H G F E D C B A 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Parallel Data Cascaded 8B/10B Conversion j' h' g' f' i' e' d' c' b' a' j h g f i e d c b a 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSB LSB Upon power on or reset, the 8B/10B encoder has a negative disparity which chooses the 10-bit code from the RD-column. However, the running disparity can be changed via the tx_forcedisp and tx_dispval ports. Altera Corporation October 2007 2-9 Stratix II GX Device Handbook, Volume 1 Transceivers Transmit State Machine The transmit state machine operates in either PCI Express mode, XAUI mode, or GIGE mode, depending on the protocol used. The state machine is not utilized for certain protocols, such as SONET. GIGE Mode In GIGE mode, the transmit state machine converts all idle ordered sets (/K28.5/, /Dx.y/) to either /I1/ or /I2/ ordered sets. /I1/ consists of a negative-ending disparity /K28.5/ (denoted by /K28.5/-) followed by a neutral /D5.6/. /I2/ consists of a positive-ending disparity /K28.5/ (denoted by /K28.5/+) and a negative-ending disparity /D16.2/ (denoted by /D16.2/-). The transmit state machines do not convert any of the ordered sets to match /C1/ or /C2/, which are the configuration ordered sets. (/C1/ and /C2/ are defined by [/K28.5/, /D21.5/] and [/K28.5/, /D2.2/], respectively). Both the /I1/ and /I2/ ordered sets guarantee a negative-ending disparity after each ordered set. XAUI Mode The transmit state machine translates the XAUI XGMII code group to the XAUI PCS code group. Table 2-5 shows the code conversion. Table 2-5. Code Conversion XGMII TXC XGMII TXD PCS Code-Group Description 0 00 through FF Dxx.y Normal data 1 07 K28.0 or K28.3 or K28.5 Idle in ||I|| 1 07 K28.5 Idle in ||T|| 1 9C K28.4 Sequence 1 FB K27.7 Start 1 FD K29.7 Terminate 1 FE K30.7 Error 1 See IEEE 802.3 reserved code groups See IEEE 802.3 reserved code groups Reserved code groups 1 Other value K30.7 Invalid XGMII character The XAUI PCS idle code groups, /K28.0/ (/R/) and /K28.5/ (/K/), are automatically randomized based on a PRBS7 pattern with an x7 + x6 + 1 polynomial. The /K28.3/ (/A/) code group is automatically generated between 16 and 31 idle code groups. The idle randomization on the /A/, /K/, and /R/ code groups is done automatically by the transmit state machine. 2-10 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Serializer (Parallel-to-Serial Converter) The serializer converts the parallel 8, 10, 16, or 20-bit data into a serial data bit stream, transmitting the least significant bit (LSB) first. The serialized data stream is then fed to the high-speed differential transmit buffer. Figure 2-7 is a diagram of the serializer. Figure 2-7. Serializer Note (1) 10 D9 D9 D8 D8 D7 D7 D6 D6 D5 D5 D4 D4 D3 D3 D2 D2 D1 D1 D0 D0 Serial data out (to output buffer) Low-speed parallel clock High-speed serial clock Note to Figure 2-7: (1) This is a 10-bit serializer. The serializer can also convert 8, 16, and 20 bits of data. Transmit Buffer The Stratix II GX transceiver buffers support the 1.2- and 1.5-V PCML I/O standard at rates up to 6.375 Gbps. The common mode voltage (VCM) of the output driver is programmable. The following VCM values are available when the buffer is in 1.2- and 1.5-V PCML. Altera Corporation October 2007 VCM = 0.6 V VCM = 0.7 V 2-11 Stratix II GX Device Handbook, Volume 1 Transceivers f Refer to the Stratix II GX Transceiver Architecture Overview chapter in volume 2 of the Stratix II GX Handbook. The output buffer, as shown in Figure 2-8, is directly driven by the high-speed data serializer and consists of a programmable output driver, a programmable pre-emphasis circuit, a programmable termination, and a programmable VCM. Figure 2-8. Output Buffer Serializer Output Buffer Programmable Pre-Emphasis Programmable Output Driver Programmable Termination Output Pins Programmable Output Driver The programmable output driver can be set to drive out differentially 200 to 1,400 mV. The differential output voltage (VOD) can be changed dynamically, or statically set by using the ALT2GXB megafunction or through I/O pins. The output driver may be programmed with four different differential termination values: 100 120 150 External termination 2-12 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Differential signaling conventions are shown in Figure 2-9. The differential amplitude represents the value of the voltage between the true and complement signals. Peak-to-peak differential voltage is defined as 2 x (VHIGH - VLOW) = 2 x single-ended voltage swing. The common mode voltage is the average of Vhigh and Vlow. Figure 2-9. Differential Signaling Single-Ended Waveform Vhigh True +VOD Complement Vlow Differential Waveform +400 +VOD 0-V Differential 2 * VOD VOD (Differential) = Vhigh - Vlow -VOD -400 Programmable Pre-Emphasis The programmable pre-emphasis module controls the output driver to boost the high frequency components, and compensate for losses in the transmission medium, as shown in Figure 2-10. The pre-emphasis is set statically using the ALT2GXB megafunction or dynamically through the dynamic reconfiguration controller. Figure 2-10. Pre-Emphasis Signaling VMAX Pre-Emphasis % = ( VMIN VMAX - 1) x 100 VMIN Altera Corporation October 2007 2-13 Stratix II GX Device Handbook, Volume 1 Transceivers Pre-emphasis percentage is defined as (VMAX/VMIN - 1) x 100, where VMAX is the differential emphasized voltage (peak-to-peak) and VMIN is the differential steady-state voltage (peak-to-peak). Programmable Termination The programmable termination can be statically set in the Quartus II software. The values are 100 , 120 , 150 , and external termination. Figure 2-11 shows the setup for programmable termination. Figure 2-11. Programmable Transmitter Terminations VCM 50, 60, or 75 9 Programmable Output Driver PCI Express Receiver Detect The Stratix II GX transmitter buffer has a built-in receiver detection circuit for use in PIPE mode. This circuit provides the ability to detect if there is a receiver downstream by sending out a pulse on the channel and monitoring the reflection. This mode requires the transmitter buffer to be tri-stated (in electrical idle mode). PCI Express Electric Idles (or Individual Transmitter Tri-State) The Stratix II GX transmitter buffer supports PCI Express electrical idles. This feature is only active in PIPE mode. The tx_forceelecidle port puts the transmitter buffer in electrical idle mode. This port is available in all PCI Express power-down modes and has specific usage in each mode. Receiver Path This section describes the data path through the Stratix II GX receiver. The Stratix II GX receiver consists of the following blocks: Receiver differential input buffer Receiver PLL lock detector, signal detector, and run length checker Clock/data recovery (CRU) unit Deserializer Pattern detector Word aligner 2-14 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Lane deskew Rate matcher 8B/10B decoder Byte deserializer Byte ordering Receiver phase compensation FIFO buffer Receiver Input Buffer The Stratix II GX receiver input buffer supports the 1.2-V and 1.5-V PCML I/O standard at rates up to 6.375 Gbps. The common mode voltage of the receiver input buffer is programmable between 0.85 V and 1.2 V. You must select the 0.85 V common mode voltage for AC- and DC-coupled PCML links and the 1.2 V common mode voltage for DC-coupled LVDS links. The receiver has programmable on-chip 100-, 120-, or 150- differential termination for different protocols, as shown in Figure 2-12. The receiver's internal termination can be disabled if external terminations and biasing are provided. The receiver and transmitter differential termination resistances can be set independently of each other. Figure 2-12. Receiver Input Buffer Programmable Termination Input Pins Programmable Equalizer Differential Input Buffer Programmable Termination The programmable termination can be statically set in the Quartus II software. Figure 2-13 shows the setup for programmable receiver termination. The termination can be disabled if external termination is provided. Altera Corporation October 2007 2-15 Stratix II GX Device Handbook, Volume 1 Transceivers Figure 2-13. Programmable Receiver Termination Differential Input Buffer 50, 60, or 75 VCM 50, 60, or 75 If a design uses external termination, the receiver must be externally terminated and biased to 0.85 V or 1.2 V. Figure 2-14 shows an example of an external termination and biasing circuit. Figure 2-14. External Termination and Biasing Circuit Receiver External Termination and Biasing Stratix II GX Device VDD 50/60/75- Termination Resistance R1 C1 Receiver R1/R2 = 1K VDD x {R2/(R1 + R 2)} = 0.85/1.2 V RXIP R2 RXIN Receiver External Termination and Biasing Transmission Line Programmable Equalizer The Stratix II GX receivers provide a programmable receive equalization feature to compensate the effects of channel attenuation for high-speed signaling. PCB traces carrying these high-speed signals have low-pass filter characteristics. The impedance mismatch boundaries can also cause signal degradation. The equalization in the receiver diminishes the lossy attenuation effects of the PCB at high frequencies. 2-16 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture 1 The Stratix II GX receivers also have adaptive equalization capability that adjusts the equalization levels to compensate for changing link characteristics. The adaptive equalization can be powered down dynamically after it selects the appropriate equalization levels. The receiver equalization circuit is comprised of a programmable amplifier. Each stage is a peaking equalizer with a different center frequency and programmable gain. This allows varying amounts of gain to be applied, depending on the overall frequency response of the channel loss. Channel loss is defined as the summation of all losses through the PCB traces, vias, connectors, and cables present in the physical link. Figure 2-15 shows the frequency response for the 16 programmable settings allowed by the Quartus II software for Stratix II GX devices. Figure 2-15. Frequency Response High Medium Low Bypass EQ Receiver PLL and CRU Each transceiver block has four receiver PLLs, lock detectors, signal detectors, run length checkers, and CRU units, each of which is dedicated to a receive channel. If the receive channel associated with a particular receiver PLL or CRU is not used, the receiver PLL and CRU are powered down for the channel. Figure 2-16 shows the receiver PLL and CRU circuits. Altera Corporation October 2007 2-17 Stratix II GX Device Handbook, Volume 1 Transceivers Figure 2-16. Receiver PLL and CRU /1, 4, 5, 8, 10, 16, 20, or 25 /m rx_pll_locked rx_cruclk /N PFD /2 Up Down /1, 2, 4 CP+LF Up VCO /L /1, 2, 4 Down rx_locktorefclk rx_locktodata Clock Recovery Unit (CRU) rx_datain rx_freqlocked rx_rlv[ ] High Speed RCVD_CLK Low Speed RCVD_CLK The receiver PLLs and CRUs can support frequencies up to 6.375 Gbps. The input clock frequency is limited to the full clock range of 50 to 622 MHz but only when using REFCLK0 or REFCLK1. An optional RX_PLL_LOCKED port is available to indicate whether the PLL is locked to the reference clock. The receiver PLL has a programmable loop bandwidth which can be set to low, medium, or high. The Quartus II software can statically set the loop bandwidth parameter. All the parameters listed are programmable in the Quartus II software. The receiver PLL has the following features: Operates from 600 Mbps to 6.375 Gbps. Uses a reference clock between 50 MHz and 622.08 MHz. Programmable bandwidth settings: low, medium, and high. Programmable rx_locktorefclk (forces the receiver PLL to lock to the reference clock) and rx_locktodata (forces the receiver PLL to lock to the data). The voltage-controlled oscillator (VCO) operates at half rate and has two modes. These modes are for low or high frequency operation and provide optimized phase-noise performance. Programmable frequency multiplication W of 1, 4, 5, 8, 10, 16, 20, and 25. Not all settings are supported for any particular frequency. Two lock indication signals are provided. They are found in PFD mode (lock-to-reference clock), and PD (lock-to-data). 2-18 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture The CRU has a built-in switchover circuit to select whether the PLL VCO is aligned by the reference clock or the data. The optional port rx_freqlocked monitors when the CRU is in locked-to-data mode. In the automatic mode, the CRU PLL must be within the prescribed PPM frequency threshold setting of the CRU reference clock for the CRU to switch from locked-to-reference to locked-to-data mode. The automatic switchover circuit can be overridden by using the optional ports rx_locktorefclk and rx_locktodata. Table 2-6 shows the possible combinations of these two signals. Table 2-6. Receiver Lock Combinations rx_locktodata rx_locktorefclk VCO (Lock to Mode) 0 0 Auto 0 1 Reference clock 1 x Data If the rx_locktorefclk and rx_locktodata ports are not used, the default is auto mode. Deserializer (Serial-to-Parallel Converter) The deserializer converts a serial bitstream into 8, 10, 16, or 20 bits of parallel data. The deserializer receives the LSB first. Figure 2-17 shows the deserializer. Altera Corporation October 2007 2-19 Stratix II GX Device Handbook, Volume 1 Transceivers Figure 2-17. Deserializer Note (1) D9 D9 D8 D8 D7 D7 D6 D6 D5 D5 D4 D4 D3 D3 D2 D2 D1 D1 D0 D0 10 High-speed serial clock Low-speed parallel clock Note to Figure 2-17: (1) This is a 10-bit deserializer. The deserializer can also convert 8, 16, or 20 bits of data. Word Aligner The deserializer block creates 8-, 10-, 16-, or 20-bit parallel data. The deserializer ignores protocol symbol boundaries when converting this data. Therefore, the boundaries of the transferred words are arbitrary. The word aligner aligns the incoming data based on specific byte or word boundaries. The word alignment module is clocked by the local receiver recovered clock during normal operation. All the data and programmed patterns are defined as big-endian (most significant word followed by least significant word). Most-significant-bit-first protocols such as SONET/SDH should reverse the bit order of word align patterns programmed. 2-20 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture This module detects word boundaries for the 8B/10B-based protocols, SONET, 16-bit, and 20-bit proprietary protocols. This module is also used to align to specific programmable patterns in PRBS7/23 test mode. Pattern Detection The programmable pattern detection logic can be programmed to align word boundaries using a single 7-, 8-, 10-, 16-, 20, or 32-bit pattern. The pattern detector can either do an exact match, or match the exact pattern and the complement of a given pattern. Once the programmed pattern is found, the data stream is aligned to have the pattern on the LSB portion of the data output bus. XAUI, GIGE, PCI Express, and Serial RapidIO standards have embedded state machines for symbol boundary synchronization. These standards use K28.5 as their 10-bit programmed comma pattern. Each of these standards uses different algorithms before signaling symbol boundary acquisition to the FPGA. The pattern detection logic searches from the LSB to the most significant bit (MSB). If multiple patterns are found within the search window, the pattern in the lower portion of the data stream (corresponding to the pattern received earlier) is aligned and the rest of the matching patterns are ignored. Once a pattern is detected and the data bus is aligned, the word boundary is locked. The two detection status signals (rx_syncstatus and rx_patterndetect) indicate that an alignment is complete. Figure 2-18 is a block diagram of the word aligner. Figure 2-18. Word Aligner datain bitslip Word Aligner enapatternalign dataout syncstatus patterndetect clock Altera Corporation October 2007 2-21 Stratix II GX Device Handbook, Volume 1 Transceivers Control and Status Signals The rx_enapatternalign signal is the FPGA control signal that enables word alignment in non-automatic modes. The rx_enapatternalign signal is not used in automatic modes (PCI Express, XAUI, GIGE, CPRI, and Serial RapidIO). In manual alignment mode, after the rx_enapatternalign signal is activated, the rx_syncstatus signal goes high for one parallel clock cycle to indicate that the alignment pattern has been detected and the word boundary has been locked. If the rx_enapatternalign is deactivated, the rx_syncstatus signal acts as a re-synchronization signal to signify that the alignment pattern has been detected but not locked on a different word boundary. When using the synchronization state machine, the rx_syncstatus signal indicates the link status. If the rx_syncstatus signal is high, link synchronization is achieved. If the rx_syncstatus signal is low, synchronization has not yet been achieved, or there were enough code group errors to lose synchronization. In some modes, the rx_enapatternalign signal can be configured to operate as a rising edge signal. f For more information on manual alignment modes, refer to the Stratix II GX Device Handbook, volume 2. When the rx_enapatternalign signal is sensitive to the rising edge, each rising edge triggers a new boundary alignment search, clearing the rx_syncstatus signal. The rx_patterndetect signal pulses high during a new alignment, and also whenever the alignment pattern occurs on the current word boundary. SONET/SDH In all the SONET/SDH modes, you can configure the word aligner to either align to A1A2 or A1A1A2A2 patterns. Once the pattern is found, the word boundary is aligned and the word aligner asserts the rx_patterndetect signal for one clock cycle. 2-22 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Programmable Run Length Violation The word aligner supports a programmable run length violation counter. Whenever the number of the continuous `0' (or `1') exceeds a user programmable value, the rx_rlv signal goes high for a minimum pulse width of two recovered clock cycles. The maximum run values supported are shown in Table 2-7. Table 2-7. Maximum Run Length (UI) PMA Serialization Mode 8 Bit 10 Bit 16 Bit 20 Bit Single-Width 128 160 -- -- Double-Width -- -- 512 640 Running Disparity Check The running disparity error rx_disperr and running disparity value rx_runningdisp are sent along with aligned data from the 8B/10B decoder to the FPGA. You can ignore or act on the reported running disparity value and running disparity error signals. Bit-Slip Mode The word aligner can operate in either pattern detection mode or in bit-slip mode. The bit-slip mode provides the option to manually shift the word boundary through the FPGA. This feature is useful for: Longer synchronization patterns than the pattern detector can accommodate Scrambled data stream Input stream consisting of over-sampled data This feature can be applied at 10-bit and 16-bit data widths. The word aligner outputs a word boundary as it is received from the analog receiver after reset. You can examine the word and search its boundary in the FPGA. To do so, assert the rx_bitslip signal. The rx_bitslip signal should be toggled and held constant for at least two FPGA clock cycles. For every rising edge of the rx_bitslip signal, the current word boundary is slipped by one bit. Every time a bit is slipped, the bit received earliest is lost. If bit slipping shifts a complete round of bus width, the word boundary is back to the original boundary. Altera Corporation October 2007 2-23 Stratix II GX Device Handbook, Volume 1 Transceivers The rx_syncstatus signal is not available in bit-slipping mode. Channel Aligner The channel aligner is available only in XAUI mode and aligns the signals of all four channels within a transceiver. The channel aligner follows the IEEE 802.3ae, clause 48 specification for channel bonding. The channel aligner is a 16-word FIFO buffer with a state machine controlling the channel bonding process. The state machine looks for an /A/ (/K28.3/) in each channel, and aligns all the /A/ code groups in the transceiver. When four columns of /A/ (denoted by //A//) are detected, the rx_channelaligned signal goes high, signifying that all the channels in the transceiver have been aligned. The reception of four consecutive misaligned /A/ code groups restarts the channel alignment sequence and sends the rx_channelaligned signal low. Figure 2-19 shows misaligned channels before the channel aligner and the aligned channels after the channel aligner. Figure 2-19. Before and After the Channel Aligner Before Lane 3 K K A K R R K K R K R K K R A K R R K K R K K R A K R R K K R K R Lane 2 Lane 1 K Lane 0 After R K K R A K R R K K R K Lane 3 K K R A K R R K K R K R Lane 2 K K R A K R R K K R K R Lane 1 K K R A K R R K K R K R Lane 0 K K R A K R R K K R K R 2-24 Stratix II GX Device Handbook, Volume 1 R R Altera Corporation October 2007 Stratix II GX Architecture Rate Matcher Rate matcher is available in Basic, PCI Express, XAUI, and GIGE modes and consists of a 20-word deep FIFO buffer and a FIFO controller. Figure 2-20 shows the implementation of the rate matcher in the Stratix II GX device. Figure 2-20. Rate Matcher datain dataout Rate Matcher wrclock rdclock In a multi-crystal environment, the rate matcher compensates for up to a 300-PPM difference between the source and receiver clocks. Table 2-8 shows the standards supported and the PPM for the rate matcher tolerance. Table 2-8. Rate Matcher PPM Support Note (1) Standard PPM XAUI 100 PCI Express (PIPE) 300 GIGE 100 Basic Double-Width 300 Note to Table 2-8: (1) Refer to the Stratix II GX Transceiver User Guide for the Altera(R)-defined scheme. Basic Mode In Basic mode, you can program the skip and control pattern for rate matching. In single-width Basic mode, there is no restriction on the deletion of a skip character in a cluster. The rate matcher deletes the skip characters as long as they are available. For insertion, the rate matcher inserts skip characters such that the number of skip characters at the output of rate matcher does not exceed five. In double-width mode, the rate matcher deletes skip character when they appear as pairs in the upper and lower bytes. There are no restrictions on the number of skip characters that are deleted. The rate matcher inserts skip characters as pairs. Altera Corporation October 2007 2-25 Stratix II GX Device Handbook, Volume 1 Transceivers GIGE Mode In GIGE mode, the rate matcher adheres to the specifications in clause 36 of the IEEE 802.3 documentation for idle additions or removals. The rate matcher performs clock compensation only on /I2/ ordered sets, composed of a /K28.5/+ followed by a /D16.2/-. The rate matcher does not perform clock compensation on any other ordered set combinations. An /I2/ is added or deleted automatically based on the number of words in the FIFO buffer. A K28.4 is given at the control and data ports when the FIFO buffer is in an overflow or underflow condition. XAUI Mode In XAUI mode, the rate matcher adheres to clause 48 of the IEEE 802.3ae specification for clock rate compensation. The rate matcher performs clock compensation on columns of /R/ (/K28.0/), denoted by //R//. An //R// is added or deleted automatically based on the number of words in the FIFO buffer. PCI Express Mode PCI Express mode operates at a data rate of 2.5 Gbps, and supports lane widths of x1, x2, x4, and x8. The rate matcher can support up to 300-PPM differences between the upstream transmitter and the receiver. The rate matcher looks for the skip ordered sets (SOS), which usually consist of a /K28.5/ comma followed by three /K28.0/ skip characters. The rate matcher deletes or inserts skip characters when necessary to prevent the rate matching FIFO buffer from overflowing or underflowing. The Stratix II GX rate matcher in PCI Express mode has FIFO overflow and underflow protection. In the event of a FIFO overflow, the rate matcher deletes any data after the overflow condition to prevent FIFO pointer corruption until the rate matcher is not full. In an underflow condition, the rate matcher inserts 9'h1FE (/K30.7/) until the FIFO is not empty. These measures ensure that the FIFO can gracefully exit the overflow and underflow condition without requiring a FIFO reset. 8B/10B Decoder The 8B/10B decoder (Figure 2-21) is part of the Stratix II GX transceiver digital blocks (PCS) and lies in the receiver path between the rate matcher and the byte deserializer blocks. The 8B/10B decoder operates in single-width and double-width modes, and can be bypassed if the 8B/10B decoding is not necessary. In single-width mode, the 8B/10B decoder restores the 8-bit data + 1-bit control identifier from the 10-bit code. In double-width mode, there are two 8B/10B decoders in parallel, which restores the 16-bit (2 x 8-bit) data + 2-bit (2 x 1-bit) control identifier from the 20-bit (2 x 10-bit) code. This 8B/10B decoder conforms to the IEEE 802.3 1998 edition standards. 2-26 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figure 2-21. 8B/10B Decoder dataout[15..8] 8B/10B Decoder MSByte Status Signals[1] (1) datain[19..10] To Byte Deserializer From Rate Matcher dataout[7..0] 8B/10B Decoder LSByte Status Signals[0] (1) datain[9..0] The 8B/10B decoder in single-width mode translates the 10-bit encoded data into the 8-bit equivalent data or control code. The 10-bit code received must be from the supported Dx.y or Kx.y list with the proper disparity or error flags asserted. All 8B/10B control signals, such as disparity error or control detect, are pipelined with the data and edge-aligned with the data. Figure 2-22 shows how the 10-bit symbol is decoded in the 8-bit data + 1-bit control indicator. Figure 2-22. 8B/10B Decoder Conversion j h g f i e d c b a 9 8 7 6 5 4 3 2 1 0 MSB received last LSB received first 8B/10B conversion Parallel data 7 6 5 4 3 2 1 0 H G F E D C B A + ctrl The 8B/10B decoder in double-width mode translates the 20-bit (2 x 10-bits) encoded code into the 16-bit (2 x 8-bits) equivalent data or control code. The 20-bit upper and lower symbols received must be from the supported Dx.y or Kx.y list with the proper disparity or error flags Altera Corporation October 2007 2-27 Stratix II GX Device Handbook, Volume 1 Transceivers asserted. All 8B/10B control signals, such as disparity error or control detect, are pipelined with the data in the Stratix II GX receiver block and are edge aligned with the data. Figure 2-23 shows how the 20-bit code is decoded to the 16-bit data + 2-bit control indicator. Figure 2-23. 20-Bit to 16-Bit Decoding Process j1 h1 g1 f1 i1 e1 d1 c1 b1 a1 j h g f i e d c b a 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSB LSB Cascaded 8B/10B Conversion CTRL[1..0] 15 14 13 13 11 10 9 8 7 6 5 4 3 2 1 0 H1 G1 F1 E1 D1 C1 B1 A1 H G F E D C B A Parallel Data There are two optional error status ports available in the 8B/10B decoder, rx_errdetect and rx_disperr. These status signals are aligned with the code group in which the error occurred. Receiver State Machine The receiver state machine operates in Basic, GIGE, PCI Express, and XAUI modes. In GIGE mode, the receiver state machine replaces invalid code groups with K30.7. In XAUI mode, the receiver state machine translates the XAUI PCS code group to the XAUI XGMII code group. Byte Deserializer The byte deserializer widens the transceiver data path before the FPGA interface. This reduces the rate at which the received data needs to be clocked at in the FPGA logic. The byte deserializer block is available in both single- and double-width modes. The byte deserializer converts the one- or two-byte interface into a two- or four-byte-wide data path from the transceiver to the FPGA logic (see Table 2-9). The FPGA interface has a limit of 250 MHz, so the byte deserializer is needed to widen the bus width at the FPGA interface and 2-28 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture reduce the interface speed. For example, at 6.375 Gbps, the transceiver logic has a double-byte-wide data path that runs at 318.75 MHz in a x20 deserializer factor, which is above the maximum FPGA interface speed. When using the byte deserializer, the FPGA interface width doubles to 40-bits (36-bits when using the 8B/10B encoder) and the interface speed reduces to 159.375 MHz. Table 2-9. Byte Deserializer Input and Output Widths Input Data Width (Bits) Deserialized Output Data Width to the FPGA (Bits) 20 40 16 32 10 20 8 16 Byte Ordering Block The byte ordering block shifts the byte order. A pre-programmed byte in the input data stream is detected and placed in the least significant byte of the output stream. Subsequent bytes start appearing in the byte positions following the LSB. The byte ordering block inserts the programmed PAD characters to shift the byte order pattern to the LSB. Based on the setting in the MegaWizard(R) Plug-In Manager, the byte ordering block can be enabled either by the rx_syncstatus signal or by the rx_enabyteord signal from the PLD. When the rx_syncstatus signal is used as enable, the byte ordering block reorders the data only for the first occurrence of the byte order pattern that is received after word alignment is completed. You must assert rx_digitalreset to perform byte ordering again. However, when the byte ordering block is controlled by rx_enabyteord, the byte ordering block can be controlled by the PLD logic dynamically. When you create your functional mode in the MegaWizard, you can select byte ordering block only if rate matcher is not selected. Receiver Phase Compensation FIFO Buffer The receiver phase compensation FIFO buffer resides in the transceiver block at the FPGA boundary and cannot be bypassed. This FIFO buffer compensates for phase differences and clock tree timing skew between the receiver clock domain within the transceiver and the receiver FPGA clock after it has transferred to the FPGA. Altera Corporation October 2007 2-29 Stratix II GX Device Handbook, Volume 1 Transceivers When the FIFO pointers initialize, the receiver domain clock must remain phase locked to receiver FPGA clock. After resetting the receiver FIFO buffer, writing to the receiver FIFO buffer begins and continues on each parallel clock. The phase compensation FIFO buffer is eight words deep for PIPE mode and four words deep for all other modes. Loopback Modes The Stratix II GX transceiver has built-in loopback modes for debugging and testing. The loopback modes are configured in the Stratix II GX ALT2GXB megafunction in the Quartus II software. The available loopback modes are: Serial loopback Parallel loopback Reverse serial loopback Reverse serial loopback (pre-CDR) PCI Express PIPE reverse parallel loopback (available only in PIPE mode) Serial Loopback The serial loopback mode exercises all the transceiver logic, except for the input buffer. Serial loopback is available for all non-PIPE modes. The loopback function is dynamically enabled through the rx_seriallpbken port on a channel-by-channel basis. In serial loopback mode, the data on the transmit side is sent by the PLD. A separate mode is available in the ALT2GXB megafunction under Basic protocol mode, in which PRBS data is generated and verified internally in the transceiver. The PRBS patterns available in this mode are shown in Table 2-10. Table 2-10 shows the BIST data output and verifier alignment pattern. Table 2-10. BIST Data Output and Verifier Alignment Pattern Parallel Data Width Pattern Polynomial 8-Bit PRBS-7 x7 + x6 + 1 PRBS-10 x10 + x7 + 1 2-30 Stratix II GX Device Handbook, Volume 1 10-Bit 16-Bit 20-Bit v v Altera Corporation October 2007 Stratix II GX Architecture Figure 2-24 shows the data path in serial loopback mode. Figure 2-24. Stratix II GX Block in Serial Loopback Mode with BIST and PRBS Transmitter Digital Logic TX Phase Compensation FIFO Analog Receiver and Transmitter Logic BIST PRBS Generator BIST Incremental Generator Byte Serializer 20 8B/10B Encoder Serializer FPGA Logic Array Serial Loopback BIST Incremental Verify RX Phase Compensation FIFO BIST PRBS Verify Byte Ordering Byte Deserializer 8B/10B Decoder Rate Match FIFO Deskew FIFO Word Aligner Deserializer Clock Recovery Unit Receiver Digital Logic Parallel Loopback The parallel loopback mode exercises the digital logic portion of the transceiver data path. The analog portions are not used in this loopback path, and the received high-speed serial data is not retimed. This protocol is available as one of the sub-protocols under Basic mode and can be used only for Basic double-width mode. In this loopback mode, the data from the internally available BIST generator is transmitted. The data is looped back after the end of PCS and before the PMA. On the receive side, an internal BIST verifier checks for errors. This loopback enables you to verify the PCS block. Altera Corporation October 2007 2-31 Stratix II GX Device Handbook, Volume 1 Transceivers Figure 2-25 shows the data path in parallel loopback mode. Figure 2-25. Stratix II GX Block in Parallel Loopback Mode Transmitter Digital Logic Analog Receiver and Transmitter Logic BIST Incremental Generator TX Phase Compensation FIFO BIST PRBS Generator Byte Serializer 8B/10B Encoder Serializer 20 Parallel Loopback FPGA Logic Array BIST Incremental Verify RX Phase Compensation FIFO BIST PRBS Verify Byte Ordering Byte Deserializer 8B/10B Decoder Rate Match FIFO Deskew FIFO Word Aligner Deserializer Clock Recovery Unit Receiver Digital Logic Reverse Serial Loopback The reverse serial loopback mode uses the analog portion of the transceiver. An external source (pattern generator or transceiver) generates the source data. The high-speed serial source data arrives at the high-speed differential receiver input buffer, passes through the CRU unit, and the retimed serial data is looped back and transmitted though the high-speed differential transmitter output buffer. 2-32 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figure 2-26 shows the data path in reverse serial loopback mode. Figure 2-26. Stratix II GX Block in Reverse Serial Loopback Mode Transmitter Digital Logic Analog Receiver and Transmitter Logic BIST PRBS Generator BIST Incremental Generator TX Phase Compensation FIFO Byte Serializer 8B/10B 20 Encoder Serializer FPGA Logic Array Reverse Serial Loopback BIST Incremental Verify RX Phase Compensation FIFO BIST PRBS Verify Byte Ordering Byte Deserializer 8B/10B Decoder Rate Match FIFO Deskew FIFO Word Aligner Deserializer Clock Recovery Unit Receiver Digital Logic Reverse Serial Pre-CDR Loopback The reverse serial pre-CDR loopback mode uses the analog portion of the transceiver. An external source (pattern generator or transceiver) generates the source data. The high-speed serial source data arrives at the high-speed differential receiver input buffer, loops back before the CRU unit, and is transmitted though the high-speed differential transmitter output buffer. It is for test or verification use only to verify the signal being received after the gain and equalization improvements of the input buffer. The signal at the output is not exactly what is received since the signal goes through the output buffer and the VOD is changed to the VOD setting level. The pre-emphasis settings have no effect. Altera Corporation October 2007 2-33 Stratix II GX Device Handbook, Volume 1 Transceivers Figure 2-27 show the Stratix II GX block in reverse serial pre-CDR loopback mode. Figure 2-27. Stratix II GX Block in Reverse Serial Pre-CDR Loopback Mode Transmitter Digital Logic Analog Receiver and Transmitter Logic BIST PRBS Generator BIST Incremental Generator TX Phase Compensation FIFO Byte Serializer 8B/10B 20 Encoder Serializer FPGA Logic Array BIST Incremental Verify RX Phase Compensation FIFO Reverse Serial Pre-CDR Loopback BIST PRBS Verify Byte Ordering Byte Deserializer Rate Match FIFO 8B/10B Decoder Deskew FIFO Deserializer Word Aligner Clock Recovery Unit Receiver Digital Logic PCI Express PIPE Reverse Parallel Loopback This loopback mode, available only in PIPE mode, can be dynamically enabled by the tx_detectrxloopback port of the PIPE interface. Figure 2-28 shows the datapath for this mode. Figure 2-28. Stratix II GX Block in PCI Express PIPE Reverse Parallel Loopback Mode Transmitter Digital Logic Analog Receiver and Transmitter Logic BIST Incremental Generator TX Phase Compensation FIFO BIST PRBS Generator Byte Serializer 8B/10B Encoder 20 FPGA Logic Array Serializer PCI Express PIPE Reverse Parallel Loopback BIST Incremental Verify RX Phase Compensation FIFO BIST PRBS Verify Byte Ordering Byte Deserializer 8B/10B Decoder Rate Match FIFO Deskew FIFO Word Aligner Deserializer Clock Recovery Unit Receiver Digital Logic 2-34 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Transceiver Clocking Each Stratix II GX device transceiver block contains two transmitter PLLs and four receiver PLLs. These PLLs can be driven by either of the two reference clocks per transceiver block. These REFCLK signals can drive all global clocks, transmitter PLL inputs, and all receiver PLL inputs. Subsequently, the transmitter PLL output can only drive global clock lines and the receiver PLL reference clock port. Only one of the two reference clocks in a quad can drive the Inter Quad (I/Q) lines to clock the PLLs in the other quads. Figure 2-29 shows the inter-transceiver line connections as well as the global clock connections for the EP2SGX130 device. Altera Corporation October 2007 2-35 Stratix II GX Device Handbook, Volume 1 Transceivers Figure 2-29. EP2SGX130 Device Inter-Transceiver and Global Clock Connections To PLD Global Clocks Transceiver Block 0 Global clk line IQ[4..0] Transmitter PLL 0 REFCLK0 /2 From Global Clock Line (3) To IQ0 REFCLK1 /2 IQ[4..0] Global clk line Transmitter PLL 1 From Global Clock Line (3) IQ[4..0] 4 Receiver PLLs Transceiver Clock Generator Block 16 Interface Clocks Global clk line IQ[4..0] IQ[4..0] Transceiver Block 1 Transmitter PLL 0 REFCLK0 /2 To IQ1 REFCLK1 /2 IQ[4..0] Global clk line Transmitter PLL 1 From Global Clock Line (3) IQ[4..0] 4 Receiver PLLs Transceiver Clock Generator Block Global clk line IQ[4..0] Transceiver Block 2 Transmitter PLL 0 REFCLK0 /2 To IQ4 REFCLK1 /2 IQ[4..0] Transmitter PLL 1 Global clk line 4 Receiver PLLs From Global Clock Line (3) IQ[4..0] Transceiver Clock Generator Block Global clk line IQ[4..0] Transceiver Block 3 Transmitter PLL 0 REFCLK0 /2 To IQ2 REFCLK1 /2 IQ[4..0] Global clk line Transmitter PLL 1 4 Receiver PLLs From Global Clock Line (3) IQ[4..0] Transceiver Clock Generator Block Global clk line IQ[4..0] Transceiver Block 4 Transmitter PLL 0 REFCLK0 /2 To IQ3 REFCLK1 IQ[4..0] /2 Transmitter PLL 1 Global clk line IQ[4..0] From Global Clock Line (3) 4 Receiver PLLs Transceiver Clock Generator Block Notes to Figure 2-29: (1) (2) (3) There are two transmitter PLLs in each transceiver block. There are four receiver PLLs in each transceiver block. The Global Clock line must be driven by an input pin. 2-36 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture The receiver PLL can also drive the regional clocks and regional routing adjacent to the associated transceiver block. Figure 2-30 shows which global clock resource can be used by the recovered clock. Figure 2-31 shows which regional clock resource can be used by the recovered clock. Figure 2-30. Stratix II GX Receiver PLL Recovered Clock to Global Clock Connection Notes (1), (2) CLK[15..12] 11 5 7 Stratix II GX Transceiver Block GCLK[15..12] CLK[3..0] 1 2 GCLK[3..0] GCLK[11..8] GCLK[4..7] Stratix II GX Transceiver Block 8 12 6 CLK[7..4] Notes to Figure 2-30: (1) (2) Altera Corporation October 2007 CLK# pins are clock pins and their associated number. These are pins for global and regional clocks. GCLK# pins are global clock pins. 2-37 Stratix II GX Device Handbook, Volume 1 Transceivers Figure 2-31. Stratix II GX Receiver PLL Recovered Clock to Regional Clock Connection Notes (1), (2) CLK[15..12] 11 5 7 CLK[3..0] RCLK [31..28] RCLK [27..24] RCLK [3..0] RCLK [23..20] RCLK [7..4] RCLK [19..16] Stratix II GX Transceiver Block 1 2 8 RCLK [11..8] Stratix II GX Transceiver Block RCLK [15..12] 12 6 CLK[7..4] Notes to Figure 2-31: (1) (2) CLK# pins are clock pins and their associated number. These are pins for global and local clocks. RCLK# pins are regional clock pins. 2-38 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Table 2-11 summarizes the possible clocking connections for the transceivers. Table 2-11. Available Clocking Connections for Transceivers Destination Source Transmitter PLL Receiver PLL Global Clock Regional Clock Inter-Transceiver Lines v v v v v Transmitter PLL v v Receiver PLL v v REFCLK[1..0] Global clock (driven from an input pin) v v Inter-transceiver lines v v Clock Resource for PLD-Transceiver Interface For the regional or global clock network to route into the transceiver, a local route input output (LRIO) channel is required. Each LRIO clock region has up to eight clock paths and each transceiver block has a maximum of eight clock paths for connecting with LRIO clocks. These resources are limited and determine the number of clocks that can be used between the PLD and transceiver blocks. Table 2-12 shows the number of LRIO resources available for Stratix II GX devices with different numbers of transceiver blocks. Tables 2-12 through 2-15 show the connection of the LRIO clock resource to the transceiver block. Table 2-12. Available Clocking Connections for Transceivers in 2SGX30D Clock Resource Region Altera Corporation October 2007 Transceiver Global Clock Regional Clock Bank 13 8 Clock I/O Region0 8 LRIO clock v RCLK 20-27 v Region1 8 LRIO clock v RCLK 12-19 Bank 14 8 Clock I/O v 2-39 Stratix II GX Device Handbook, Volume 1 Transceivers . Table 2-13. Available Clocking Connections for Transceivers in 2SGX60E Clock Resource Region Global Clock Transceiver Regional Clock Bank 13 8 Clock I/O Region0 8 LRIO clock v RCLK 20-27 v Region1 8 LRIO clock v RCLK 20-27 v Region2 8 LRIO clock v RCLK 12-19 Region3 8 LRIO clock v RCLK 12-19 Bank 14 8 Clock I/O Bank 15 8 Clock I/O v v v v . Table 2-14. Available Clocking Connections for Transceivers in 2SGX90F Clock Resource Region Transceiver Global Clock Regional Clock Bank 13 8 Clock I/O Region0 8 LRIO clock v RCLK 20-27 v Region1 8 LRIO clock v RCLK 20-27 Region2 8 LRIO clock v RCLK 12-19 Region3 8 LRIO clock v RCLK 12-19 2-40 Stratix II GX Device Handbook, Volume 1 Bank 14 8 Clock I/O Bank 15 8 clock I/O Bank 16 8 Clock I/O v v v Altera Corporation October 2007 Stratix II GX Architecture . Table 2-15. Available Clocking Connections for Transceivers in 2SGX130G Clock Resource Region Transceiver Global Clock Regional Clock Bank 13 8 Clock I/O Region0 8 LRIO clock v RCLK 20-27 v Region1 8 LRIO clock v RCLK 20-27 Region2 8 LRIO clock v RCLK 12-19 Region3 8 LRIO clock v RCLK 12-19 Bank 14 8 Clock I/O Bank 15 8 clock I/O Bank 16 8 Clock I/O v v Bank 17 8 Clock I/O v v Other Transceiver Features Other important features of the Stratix II GX transceivers are the power down and reset capabilities, external voltage reference and bias circuitry, and hot swapping. Calibration Block The Stratix II GX device uses the calibration block to calibrate the on-chip termination for the PLLs and their associated output buffers and the terminating resistors on the transceivers. The calibration block counters the effects of process, voltage, and temperature (PVT). The calibration block references a derived voltage across an external reference resistor to calibrate the on-chip termination resistors on the Stratix II GX device. The calibration block can be powered down. However, powering down the calibration block during operations may yield transmit and receive data errors. Dynamic Reconfiguration This feature allows you to dynamically reconfigure the PMA portion and the channel parameters, such as data rate and functional mode, of the Stratix II GX transceiver. The PMA reconfiguration allows you to quickly optimize the settings for the transceiver's PMA to achieve the intended bit error rate (BER). Altera Corporation October 2007 2-41 Stratix II GX Device Handbook, Volume 1 v Transceivers The dynamic reconfiguration block can dynamically reconfigure the following PMA settings: Pre-emphasis settings Equalizer and DC gain settings Voltage Output Differential (VOD) settings The channel reconfiguration allows you to dynamically modify the data rate, local dividers, and the functional mode of the transceiver channel. f Refer to the Stratix II GX Device Handbook, volume 2, for more information. The dynamic reconfiguration block requires an input clock between 2.5 MHz and 50 MHz. The clock for the dynamic reconfiguration block is derived from a high-speed clock and divided down using a counter. Individual Power Down and Reset for the Transmitter and Receiver Stratix II GX transceivers offer a power saving advantage with their ability to shut off functions that are not needed. The device can individually reset the receiver and transmitter blocks and the PLLs. The Stratix II GX device can either globally or individually power down and reset the transceiver. Table 2-16 shows the connectivity between the reset signals and the Stratix II GX transceiver blocks. These reset signals can be controlled from the FPGA or pins. 2-42 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture v rx_digitalreset v v v v v rx_analogreset v Receiver Analog Circuits BIST Verifiers Receiver XAUI State Machine Receiver PLL / CRU Receiver Phase Comp FIFO Module/ Byte Deserializer Receiver 8B/10B Decoder Receiver Rate Matcher Receiver Deskew FIFO Module Receiver Word Aligner Receiver Deserializer BIST Generators Transmitter XAUI State Machine Transmitter PLL Transmitter Analog Circuits Transmitter Serializer Transmitter 8B/10B Encoder Reset Signal Transmitter Phase Compensation FIFO Module/ Byte Serializer Table 2-16. Reset Signal Map to Stratix II GX Blocks v v v tx_digitalreset v v v v gxb_powerdown v v v v v v v v v v v v v v v v v gxb_enable v v v v v v v v v v v v v v v v v Voltage Reference Capabilities Stratix II GX transceivers provide voltage reference and bias circuitry. To set up internal bias for controlling the transmitter output driver voltage swings, as well as to provide voltage and current biasing for other analog circuitry, the device uses an internal bandgap voltage reference of 0.7 V. An external 2-K resistor connected to ground generates a constant bias current (independent of power supply drift, process changes, or temperature variation). An on-chip resistor generates a tracking current that tracks on-chip resistor variation. These currents are mirrored and distributed to the analog circuitry in each channel. f Altera Corporation October 2007 For more information, refer to the DC and Switching Characteristics chapter in volume 1 of the Stratix II GX Handbook. 2-43 Stratix II GX Device Handbook, Volume 1 Logic Array Blocks Applications and Protocols Supported with Stratix II GX Devices Each Stratix II GX transceiver block is designed to operate at any serial bit rate from 600 Mbps to 6.375 Gbps per channel. The wide data rate range allows Stratix II GX transceivers to support a wide variety of standards and protocols, such as PCI Express, GIGE, SONET/SDH, SDI, OIF-CEI, and XAUI. Stratix II GX devices are ideal for many high-speed communication applications, such as high-speed backplanes, chip-to-chip bridges, and high-speed serial communications links. Example Applications Support for Stratix II GX Stratix II GX devices can be used for many applications, including: Logic Array Blocks Traffic management with various levels of quality of service (QoS) and integrated serial backplane interconnect Multi-port single-protocol switching (for example, PCI Express, GIGE, XAUI switch, or SONET/SDH) Each logic array block (LAB) consists of eight adaptive logic modules (ALMs), carry chains, shared arithmetic chains, LAB control signals, local interconnects, and register chain connection lines. The local interconnect transfers signals between ALMs in the same LAB. Register chain connections transfer the output of an ALM register to the adjacent ALM register in a LAB. The Quartus II Compiler places associated logic in a LAB or adjacent LABs, allowing the use of local, shared arithmetic chain, and register chain connections for performance and area efficiency. Table 2-17 shows Stratix II GX device resources. Figure 2-32 shows the Stratix II GX LAB structure. Table 2-17. Stratix II GX Device Resources Device M512 RAM M4K RAM Columns/Blocks Columns/Blocks M-RAM Blocks DSP Block Columns/Blocks LAB Columns LAB Rows EP2SGX30 6/202 4/144 1 2/16 49 36 EP2SGX60 7/329 5/255 2 3/36 62 51 EP2SGX90 8/488 6/408 4 3/48 71 68 EP2SGX130 9/699 7/609 6 3/63 81 87 2-44 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figure 2-32. Stratix II GX LAB Structure Row Interconnects of Variable Speed & Length ALMs Direct link interconnect from adjacent block Direct link interconnect from adjacent block Direct link interconnect to adjacent block Direct link interconnect to adjacent block Local Interconnect LAB Local Interconnect is Driven from Either Side by Columns & LABs, & from Above by Rows Column Interconnects of Variable Speed & Length LAB Interconnects The LAB local interconnect can drive all eight ALMs in the same LAB. It is driven by column and row interconnects and ALM outputs in the same LAB. Neighboring LABs, M512 RAM blocks, M4K RAM blocks, M-RAM blocks, or digital signal processing (DSP) blocks from the left and right can also drive a LAB's local interconnect through the direct link connection. The direct link connection feature minimizes the use of row and column interconnects, providing higher performance and flexibility. Each ALM can drive 24 ALMs through fast local and direct link interconnects. Altera Corporation October 2007 2-45 Stratix II GX Device Handbook, Volume 1 Logic Array Blocks Figure 2-33 shows the direct link connection. Figure 2-33. Direct Link Connection Direct link interconnect from left LAB, TriMatrixTM memory block, DSP block, or input/output element (IOE) Direct link interconnect from right LAB, TriMatrix memory block, DSP block, or IOE output ALMs Direct link interconnect to right Direct link interconnect to left Local Interconnect LAB LAB Control Signals Each LAB contains dedicated logic for driving control signals to its ALMs. The control signals include three clocks, three clock enables, two asynchronous clears, synchronous clear, asynchronous preset/load, and synchronous load control signals, providing a maximum of 11 control signals at a time. Although synchronous load and clear signals are generally used when implementing counters, they can also be used with other functions. Each LAB can use three clocks and three clock enable signals. However, there can only be up to two unique clocks per LAB, as shown in the LAB control signal generation circuit in Figure 2-34. Each LAB's clock and clock enable signals are linked. For example, any ALM in a particular LAB using the labclk1 signal also uses labclkena1. If the LAB uses both the rising and falling edges of a clock, it also uses two LAB-wide clock signals. De-asserting the clock enable signal turns off the corresponding LAB-wide clock. Each LAB can use two asynchronous clear signals and an asynchronous load/preset signal. The asynchronous 2-46 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture load acts as a preset when the asynchronous load data input is tied high. When the asynchronous load/preset signal is used, the labclkena0 signal is no longer available. The LAB row clocks [5..0] and LAB local interconnect generate the LAB-wide control signals. The MultiTrackTM interconnects have inherently low skew. This low skew allows the MultiTrack interconnects to distribute clock and control signals in addition to data. Figure 2-34 shows the LAB control signal generation circuit. Figure 2-34. LAB-Wide Control Signals There are two unique clock signals per LAB. 6 Dedicated Row LAB Clocks 6 6 Local Interconnect Local Interconnect Local Interconnect Local Interconnect Local Interconnect Local Interconnect labclk0 labclk1 labclkena0 or asyncload or labpreset Altera Corporation October 2007 labclk2 labclkena1 labclkena2 labclr1 syncload labclr0 synclr 2-47 Stratix II GX Device Handbook, Volume 1 Adaptive Logic Modules Adaptive Logic Modules The basic building block of logic in the Stratix II GX architecture is the ALM. The ALM provides advanced features with efficient logic utilization. Each ALM contains a variety of look-up table (LUT)-based resources that can be divided between two adaptive LUTs (ALUTs). With up to eight inputs to the two ALUTs, one ALM can implement various combinations of two functions. This adaptability allows the ALM to be completely backward-compatible with four-input LUT architectures. One ALM can also implement any function of up to six inputs and certain seven-input functions. In addition to the adaptive LUT-based resources, each ALM contains two programmable registers, two dedicated full adders, a carry chain, a shared arithmetic chain, and a register chain. Through these dedicated resources, the ALM can efficiently implement various arithmetic functions and shift registers. Each ALM drives all types of interconnects: local, row, column, carry chain, shared arithmetic chain, register chain, and direct link interconnects. Figure 2-35 shows a high-level block diagram of the Stratix II GX ALM while Figure 2-36 shows a detailed view of all the connections in the ALM. Figure 2-35. High-Level Block Diagram of the Stratix II GX ALM carry_in shared_arith_in reg_chain_in To general or local routing dataf0 adder0 datae0 D dataa datab datac Q To general or local routing reg0 Combinational Logic datad adder1 D Q datae1 To general or local routing reg1 dataf1 To general or local routing carry_out shared_arith_out 2-48 Stratix II GX Device Handbook, Volume 1 reg_chain_out Altera Corporation October 2007 Altera Corporation October 2007 dataf1 Local Interconnect datab Local Interconnect datae1 dataa Local Interconnect Local Interconnect datac Local Interconnect datad datae0 Local Interconnect Local Interconnect dataf0 Local Interconnect 3-Input LUT 3-Input LUT 4-Input LUT 3-Input LUT 3-Input LUT 4-Input LUT shared_arith_out shared_arith_in carry_out carry_in VCC sclr syncload reg_chain_out reg_chain_in clk[2..0] aclr[1..0] ENA CLRN PRN/ALD Q D ADATA ENA CLRN PRN/ALD D Q ADATA asyncload ena[2..0] Local Interconnect Row, column & direct link routing Row, column & direct link routing Local Interconnect Row, column & direct link routing Row, column & direct link routing Stratix II GX Architecture Figure 2-36. Stratix II GX ALM Details 2-49 Stratix II GX Device Handbook, Volume 1 Adaptive Logic Modules One ALM contains two programmable registers. Each register has data, clock, clock enable, synchronous and asynchronous clear, asynchronous load data, and synchronous and asynchronous load/preset inputs. Global signals, general-purpose I/O pins, or any internal logic can drive the register's clock and clear control signals. Either general-purpose I/O pins or internal logic can drive the clock enable, preset, asynchronous load, and asynchronous load data. The asynchronous load data input comes from the datae or dataf input of the ALM, which are the same inputs that can be used for register packing. For combinational functions, the register is bypassed and the output of the LUT drives directly to the outputs of the ALM. Each ALM has two sets of outputs that drive the local, row, and column routing resources. The LUT, adder, or register output can drive these output drivers independently (see Figure 2-36). For each set of output drivers, two ALM outputs can drive column, row, or direct link routing connections, and one of these ALM outputs can also drive local interconnect resources. This allows the LUT or adder to drive one output while the register drives another output. This feature, called register packing, improves device utilization because the device can use the register and the combinational logic for unrelated functions. Another special packing mode allows the register output to feed back into the LUT of the same ALM so that the register is packed with its own fan-out LUT. This feature provides another mechanism for improved fitting. The ALM can also drive out registered and unregistered versions of the LUT or adder output. f See the Stratix II Performance and Logic Efficiency Analysis White Paper for more information on the efficiencies of the Stratix II GX ALM and comparisons with previous architectures. ALM Operating Modes The Stratix II GX ALM can operate in one of the following modes: Normal mode Extended LUT mode Arithmetic mode Shared arithmetic mode Each mode uses ALM resources differently. Each mode has 11 available inputs to the ALM (see Figure 2-35)--the eight data inputs from the LAB local interconnect; carry-in from the previous ALM or LAB; the shared arithmetic chain connection from the previous ALM or LAB; and the register chain connection--are directed to different destinations to implement the desired logic function. LAB-wide signals provide clock, 2-50 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture asynchronous clear, asynchronous preset/load, synchronous clear, synchronous load, and clock enable control for the register. These LAB wide signals are available in all ALM modes. Refer to "LAB Control Signals" on page 2-46 for more information on the LAB-wide control signals. The Quartus II software and supported third-party synthesis tools, in conjunction with parameterized functions such as library of parameterized modules (LPM) functions, automatically choose the appropriate mode for common functions such as counters, adders, subtractors, and arithmetic functions. If required, you can also create special-purpose functions that specify which ALM operating mode to use for optimal performance. Normal Mode The normal mode is suitable for general logic applications and combinational functions. In this mode, up to eight data inputs from the LAB local interconnect are inputs to the combinational logic. The normal mode allows two functions to be implemented in one Stratix II GX ALM, or an ALM to implement a single function of up to six inputs. The ALM can support certain combinations of completely independent functions and various combinations of functions which have common inputs. Figure 2-37 shows the supported LUT combinations in normal mode. Altera Corporation October 2007 2-51 Stratix II GX Device Handbook, Volume 1 Adaptive Logic Modules Figure 2-37. ALM in Normal Mode Note (1) dataf0 datae0 datac dataa 4-Input LUT combout0 datab datad datae1 dataf1 4-Input LUT combout1 dataf0 datae0 datac dataa datab 5-Input LUT combout0 datad datae1 dataf1 dataf0 datae0 datac dataa datab datad datae1 dataf1 3-Input LUT 5-Input LUT combout0 5-Input LUT combout1 dataf0 datae0 dataa datab datac datad 6-Input LUT combout0 dataf0 datae0 dataa datab datac datad 6-Input LUT combout0 6-Input LUT combout1 datad datae1 dataf1 combout1 5-Input LUT 4-Input LUT dataf0 datae0 datac dataa datab combout0 combout1 datae1 dataf1 Note to Figure 2-37: (1) Combinations of functions with less inputs than those shown are also supported. For example, combinations of functions with the following number of inputs are supported: 4 and 3, 3 and 3, 3 and 2, 5 and 2, etc. The normal mode provides complete backward compatibility with four-input LUT architectures. Two independent functions of four inputs or less can be implemented in one Stratix II GX ALM. In addition, a five-input function and an independent three-input function can be implemented without sharing inputs. 2-52 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture To pack two five-input functions into one ALM, the functions must have at least two common inputs. The common inputs are dataa and datab. The combination of a four-input function with a five-input function requires one common input (either dataa or datab). To implement two six-input functions in one ALM, four inputs must be shared and the combinational function must be the same. For example, a 4 x 2 crossbar switch (two 4-to-1 multiplexers with common inputs and unique select lines) can be implemented in one ALM, as shown in Figure 2-38. The shared inputs are dataa, datab, datac, and datad, while the unique select lines are datae0 and dataf0 for function0, and datae1 and dataf1 for function1. This crossbar switch consumes four LUTs in a four-input LUT-based architecture. Figure 2-38. 4 x 2 Crossbar Switch Example 4 x 2 Crossbar Switch sel0[1..0] inputa inputb out0 inputc inputd Implementation in 1 ALM dataf0 datae0 dataa datab datac datad Six-Input LUT (Function0) combout0 Six-Input LUT (Function1) combout1 out1 sel1[1..0] datae1 dataf1 In a sparsely used device, functions that could be placed into one ALM can be implemented in separate ALMs. The Quartus II Compiler spreads a design out to achieve the best possible performance. As a device begins to fill up, the Quartus II software automatically utilizes the full potential of the Stratix II GX ALM. The Quartus II Compiler automatically searches for functions of common inputs or completely independent functions to be placed into one ALM and to make efficient use of the device resources. In addition, you can manually control resource usage by setting location assignments. Any six-input function can be implemented utilizing inputs dataa, datab, datac, datad, and either datae0 and dataf0 or datae1 and dataf1. If datae0 and dataf0 are utilized, the output is driven to register0, and/or register0 is bypassed and the data drives out to the interconnect using the top set of output drivers (see Figure 2-39). If datae1 and dataf1 are utilized, the output drives to register1 and/or bypasses register1 and drives to the interconnect Altera Corporation October 2007 2-53 Stratix II GX Device Handbook, Volume 1 Adaptive Logic Modules using the bottom set of output drivers. The Quartus II Compiler automatically selects the inputs to the LUT. Asynchronous load data for the register comes from the datae or dataf input of the ALM. ALMs in normal mode support register packing. Figure 2-39. 6-Input Function in Normal Mode dataf0 datae0 dataa datab datac datad Notes (1), (2) To general or local routing 6-Input LUT datae1 dataf1 (2) These inputs are available for register packing. D Q To general or local routing reg0 D Q To general or local routing reg1 Notes to Figure 2-39: (1) (2) If datae1 and dataf1 are used as inputs to the six-input function, datae0 and dataf0 are available for register packing. The dataf1 input is available for register packing only if the six-input function is un-registered. Extended LUT Mode The extended LUT mode is used to implement a specific set of seven-input functions. The set must be a 2-to-1 multiplexer fed by two arbitrary five-input functions sharing four inputs. Figure 2-40 shows the template of supported seven-input functions utilizing extended LUT mode. In this mode, if the seven-input function is unregistered, the unused eighth input is available for register packing. Functions that fit into the template shown in Figure 2-40 occur naturally in designs. These functions often appear in designs as "if-else" statements in Verilog HDL or VHDL code. 2-54 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figure 2-40. Template for Supported Seven-Input Functions in Extended LUT Mode datae0 datac dataa datab datad dataf0 5-Input LUT To general or local routing combout0 D 5-Input LUT Q To general or local routing reg0 datae1 dataf1 (1) This input is available for register packing. Note to Figure 2-40: (1) If the seven-input function is un-registered, the unused eighth input is available for register packing. The second register, reg1, is not available. Arithmetic Mode The arithmetic mode is ideal for implementing adders, counters, accumulators, wide parity functions, and comparators. An ALM in arithmetic mode uses two sets of two four-input LUTs along with two dedicated full adders. The dedicated adders allow the LUTs to be available to perform pre-adder logic; therefore, each adder can add the output of two four-input functions. The four LUTs share the dataa and datab inputs. As shown in Figure 2-41, the carry-in signal feeds to adder0, and the carry-out from adder0 feeds to carry-in of adder1. The carry-out from adder1 drives to adder0 of the next ALM in the LAB. ALMs in arithmetic mode can drive out registered and/or un-registered versions of the adder outputs. Altera Corporation October 2007 2-55 Stratix II GX Device Handbook, Volume 1 Adaptive Logic Modules Figure 2-41. ALM in Arithmetic Mode carry_in adder0 datae0 4-Input LUT To general or local routing D dataf0 datac datab dataa Q To general or local routing reg0 4-Input LUT adder1 datad datae1 4-Input LUT To general or local routing D 4-Input LUT Q To general or local routing reg1 dataf1 carry_out While operating in arithmetic mode, the ALM can support simultaneous use of the adder's carry output along with combinational logic outputs. In this operation, the adder output is ignored. This usage of the adder with the combinational logic output provides resource savings of up to 50% for functions that can use this ability. An example of such functionality is a conditional operation, such as the one shown in Figure 2-42. The equation for this example is: R = (X < Y) ? Y : X To implement this function, the adder is used to subtract `Y' from `X'. If `X' is less than `Y', the carry_out signal will be `1'. The carry_out signal is fed to an adder where it drives out to the LAB local interconnect. It then feeds to the LAB-wide syncload signal. When asserted, syncload selects the syncdata input. In this case, the data `Y' drives the syncdata inputs to the registers. If `X' is greater than or equal to `Y', the syncload signal is de-asserted and `X' drives the data port of the registers. 2-56 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figure 2-42. Conditional Operation Example Adder output is not used. ALM 1 X[0] Comb & Adder Logic Y[0] X[0] D R[0] To general or local routing R[1] To general or local routing R[2] To general or local routing Q reg0 syncdata syncload X[1] Comb & Adder Logic Y[1] X[1] D Q reg1 syncload Carry Chain ALM 2 X[2] Y[2] Comb & Adder Logic X[2] D Q reg0 syncload Comb & Adder Logic carry_out To local routing & then to LAB-wide syncload The arithmetic mode also offers clock enable, counter enable, synchronous up and down control, add and subtract control, synchronous clear, synchronous load. The LAB local interconnect data inputs generate the clock enable, counter enable, synchronous up and down and add and subtract control signals. These control signals may be used for the inputs that are shared between the four LUTs in the ALM. The synchronous clear and synchronous load options are LAB-wide signals that affect all registers in the LAB. The Quartus II software automatically places any registers that are not used by the counter into other LABs. Altera Corporation October 2007 2-57 Stratix II GX Device Handbook, Volume 1 Adaptive Logic Modules Carry Chain The carry chain provides a fast carry function between the dedicated adders in arithmetic or shared arithmetic mode. Carry chains can begin in either the first ALM or the fifth ALM in a LAB. The final carry-out signal is routed to an ALM, where it is fed to local, row, or column interconnects. The Quartus II Compiler automatically creates carry chain logic during compilation, or you can create it manually during design entry. Parameterized functions, such as LPM functions, automatically take advantage of carry chains for the appropriate functions. The Quartus II Compiler creates carry chains longer than 16 (8 ALMs in arithmetic or shared arithmetic mode) by linking LABs together automatically. For enhanced fitting, a long carry chain runs vertically, allowing fast horizontal connections to TriMatrix memory and DSP blocks. A carry chain can continue as far as a full column. To avoid routing congestion in one small area of the device when a high fan-in arithmetic function is implemented, the LAB can support carry chains that only utilize either the top half or the bottom half of the LAB before connecting to the next LAB. The other half of the ALMs in the LAB is available for implementing narrower fan-in functions in normal mode. Carry chains that use the top four ALMs in the first LAB will carry into the top half of the ALMs in the next LAB within the column. Carry chains that use the bottom four ALMs in the first LAB will carry into the bottom half of the ALMs in the next LAB within the column. Every other column of the LABs are top-half bypassable, while the other LAB columns are bottom-half bypassable. Refer to "MultiTrack Interconnect" on page 2-63 for more information on carry chain interconnect. Shared Arithmetic Mode In shared arithmetic mode, the ALM can implement a three-input add. In this mode, the ALM is configured with four 4-input LUTs. Each LUT either computes the sum of three inputs or the carry of three inputs. The output of the carry computation is fed to the next adder (either to adder1 in the same ALM or to adder0 of the next ALM in the LAB) using a dedicated connection called the shared arithmetic chain. This shared arithmetic chain can significantly improve the performance of an adder tree by reducing the number of summation stages required to implement an adder tree. Figure 2-43 shows the ALM in shared arithmetic mode. 2-58 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figure 2-43. ALM in Shared Arithmetic Mode shared_arith_in carry_in 4-Input LUT To general or local routing D datae0 datac datab dataa datad datae1 Q To general or local routing reg0 4-Input LUT 4-Input LUT To general or local routing D 4-Input LUT Q To general or local routing reg1 carry_out shared_arith_out Note to Figure 2-43: (1) Inputs dataf0 and dataf1 are available for register packing in shared arithmetic mode. Adder trees are used in many different applications. For example, the summation of the partial products in a logic-based multiplier can be implemented in a tree structure. Another example is a correlator function that can use a large adder tree to sum filtered data samples in a given time frame to recover or to de-spread data which was transmitted utilizing spread spectrum technology. An example of a three-bit add operation utilizing the shared arithmetic mode is shown in Figure 2-44. The partial sum (S[2..0]) and the partial carry (C[2..0]) is obtained using the LUTs, while the result (R[2..0]) is computed using the dedicated adders. Altera Corporation October 2007 2-59 Stratix II GX Device Handbook, Volume 1 Adaptive Logic Modules Figure 2-44. Example of a 3-Bit Add Utilizing Shared Arithmetic Mode shared_arith_in = '0' carry_in = '0' 3-Bit Add Example ALM Implementation ALM 1 1st stage add is implemented in LUTs. X2 X1 X0 Y2 Y1 Y0 + Z2 Z1 Z0 2nd stage add is implemented in adders. S2 S1 S0 + C2 C1 C0 R3 R2 R1 R0 Binary Add Decimal Equivalents 1 1 0 1 0 1 + 0 1 0 6 5 + 2 0 0 1 + 1 1 0 1 + 2x6 1 1 0 1 13 3-Input LUT S0 R0 X0 Y0 Z0 3-Input LUT C0 X1 Y1 Z1 3-Input LUT S1 R1 3-Input LUT C1 3-Input LUT S2 ALM 2 R2 X2 Y2 Z2 3-Input LUT C2 3-Input LUT '0' R3 3-Input LUT Shared Arithmetic Chain In addition to the dedicated carry chain routing, the shared arithmetic chain available in shared arithmetic mode allows the ALM to implement a three-input add, which significantly reduces the resources necessary to implement large adder trees or correlator functions. The shared arithmetic chains can begin in either the first or fifth ALM in a LAB. The Quartus II Compiler automatically links LABs to create shared arithmetic chains longer than 16 (8 ALMs in arithmetic or shared arithmetic mode). For enhanced fitting, a long shared arithmetic chain runs vertically 2-60 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture allowing fast horizontal connections to TriMatrix memory and DSP blocks. A shared arithmetic chain can continue as far as a full column. Similar to the carry chains, the shared arithmetic chains are also top- or bottom-half bypassable. This capability allows the shared arithmetic chain to cascade through half of the ALMs in a LAB while leaving the other half available for narrower fan-in functionality. Every other LAB column is top-half bypassable, while the other LAB columns are bottom-half bypassable. Refer to "MultiTrack Interconnect" on page 2-63 for more information on shared arithmetic chain interconnect. Register Chain In addition to the general routing outputs, the ALMs in a LAB have register chain outputs. The register chain routing allows registers in the same LAB to be cascaded together. The register chain interconnect allows a LAB to use LUTs for a single combinational function and the registers to be used for an unrelated shift register implementation. These resources speed up connections between ALMs while saving local interconnect resources (see Figure 2-45). The Quartus II Compiler automatically takes advantage of these resources to improve utilization and performance. See "MultiTrack Interconnect" on page 2-63 for more information about register chain interconnect. Altera Corporation October 2007 2-61 Stratix II GX Device Handbook, Volume 1 Adaptive Logic Modules Figure 2-45. Register Chain within a LAB Note (1) From Previous ALM Within The LAB reg_chain_in To general or local routing adder0 D Q To general or local routing reg0 Combinational Logic adder1 D Q To general or local routing reg1 To general or local routing To general or local routing adder0 D Q To general or local routing reg0 Combinational Logic adder1 D Q To general or local routing reg1 To general or local routing reg_chain_out To Next ALM within the LAB Note to Figure 2-45: (1) The combinational or adder logic can be utilized to implement an unrelated, un-registered function. 2-62 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Clear and Preset Logic Control LAB-wide signals control the logic for the register's clear and load/preset signals. The ALM directly supports an asynchronous clear and preset function. The register preset is achieved through the asynchronous load of a logic high. The direct asynchronous preset does not require a NOT gate push-back technique. Stratix II GX devices support simultaneous asynchronous load/preset and clear signals. An asynchronous clear signal takes precedence if both signals are asserted simultaneously. Each LAB supports up to two clears and one load/preset signal. In addition to the clear and load/preset ports, Stratix II GX devices provide a device-wide reset pin (DEV_CLRn) that resets all registers in the device. An option set before compilation in the Quartus II software controls this pin. This device-wide reset overrides all other control signals. MultiTrack Interconnect In the Stratix II GX architecture, the MultiTrack interconnect structure with DirectDrive technology provides connections between ALMs, TriMatrix memory, DSP blocks, and device I/O pins. The MultiTrack interconnect consists of continuous, performance-optimized routing lines of different lengths and speeds used for inter- and intra-design block connectivity. The Quartus II Compiler automatically places critical design paths on faster interconnects to improve design performance. DirectDrive technology is a deterministic routing technology that ensures identical routing resource usage for any function regardless of placement in the device. The MultiTrack interconnect and DirectDrive technology simplify the integration stage of block-based designing by eliminating the re-optimization cycles that typically follow design changes and additions. The MultiTrack interconnect consists of row and column interconnects that span fixed distances. A routing structure with fixed length resources for all devices allows predictable and repeatable performance when migrating through different device densities. Dedicated row interconnects route signals to and from LABs, DSP blocks, and TriMatrix memory in the same row. These row resources include: Altera Corporation October 2007 Direct link interconnects between LABs and adjacent blocks R4 interconnects traversing four blocks to the right or left R24 row interconnects for high-speed access across the length of the device 2-63 Stratix II GX Device Handbook, Volume 1 MultiTrack Interconnect The direct link interconnect allows a LAB, DSP block, or TriMatrix memory block to drive into the local interconnect of its left and right neighbors and then back into itself, providing fast communication between adjacent LABs and/or blocks without using row interconnect resources. The R4 interconnects span four LABs, three LABs and one M512 RAM block, two LABs and one M4K RAM block, or two LABs and one DSP block to the right or left of a source LAB. These resources are used for fast row connections in a four-LAB region. Every LAB has its own set of R4 interconnects to drive either left or right. Figure 2-46 shows R4 interconnect connections from a LAB. R4 interconnects can drive and be driven by DSP blocks and RAM blocks and row IOEs. For LAB interfacing, a primary LAB or LAB neighbor can drive a given R4 interconnect. For R4 interconnects that drive to the right, the primary LAB and right neighbor can drive onto the interconnect. For R4 interconnects that drive to the left, the primary LAB and its left neighbor can drive onto the interconnect. R4 interconnects can drive other R4 interconnects to extend the range of LABs they can drive. R4 interconnects can also drive C4 and C16 interconnects for connections from one row to another. Additionally, R4 interconnects can drive R24 interconnects. Figure 2-46. R4 Interconnect Connections Notes (1), (2), (3) Adjacent LAB can Drive onto Another LAB's R4 Interconnect C4 and C16 Column Interconnects (1) R4 Interconnect Driving Right R4 Interconnect Driving Left LAB Neighbor Primary LAB (2) LAB Neighbor Notes to Figure 2-46: (1) (2) (3) C4 and C16 interconnects can drive R4 interconnects. This pattern is repeated for every LAB in the LAB row. The LABs in Figure 2-46 show the 16 possible logical outputs per LAB. 2-64 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture R24 row interconnects span 24 LABs and provide the fastest resource for long row connections between LABs, TriMatrix memory, DSP blocks, and Row IOEs. The R24 row interconnects can cross M-RAM blocks. R24 row interconnects drive to other row or column interconnects at every fourth LAB and do not drive directly to LAB local interconnects. R24 row interconnects drive LAB local interconnects via R4 and C4 interconnects. R24 interconnects can drive R24, R4, C16, and C4 interconnects. The column interconnect operates similarly to the row interconnect and vertically routes signals to and from LABs, TriMatrix memory, DSP blocks, and IOEs. Each column of LABs is served by a dedicated column interconnect. These column resources include: Shared arithmetic chain interconnects in a LAB Carry chain interconnects in a LAB and from LAB to LAB Register chain interconnects in a LAB C4 interconnects traversing a distance of four blocks in an up and down direction C16 column interconnects for high-speed vertical routing through the device Stratix II GX devices include an enhanced interconnect structure in LABs for routing shared arithmetic chains and carry chains for efficient arithmetic functions. The register chain connection allows the register output of one ALM to connect directly to the register input of the next ALM in the LAB for fast shift registers. These ALM-to-ALM connections bypass the local interconnect. The Quartus II Compiler automatically takes advantage of these resources to improve utilization and performance. Figure 2-47 shows the shared arithmetic chain, carry chain, and register chain interconnects. Altera Corporation October 2007 2-65 Stratix II GX Device Handbook, Volume 1 MultiTrack Interconnect Figure 2-47. Shared Arithmetic Chain, Carry Chain and Register Chain Interconnects Local Interconnect Routing Among ALMs in the LAB Carry Chain & Shared Arithmetic Chain Routing to Adjacent ALM ALM 1 ALM 2 Local Interconnect Register Chain Routing to Adjacent ALM's Register Input ALM 3 ALM 4 ALM 5 ALM 6 ALM 7 ALM 8 The C4 interconnects span four LABs, M512, or M4K blocks up or down from a source LAB. Every LAB has its own set of C4 interconnects to drive either up or down. Figure 2-48 shows the C4 interconnect connections from a LAB in a column. The C4 interconnects can drive and be driven by all types of architecture blocks, including DSP blocks, TriMatrix memory blocks, and column and row IOEs. For LAB interconnection, a primary LAB or its LAB neighbor can drive a given C4 interconnect. C4 interconnects can drive each other to extend their range as well as drive row interconnects for column-to-column connections. 2-66 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figure 2-48. C4 Interconnect Connections Note (1) C4 Interconnect Drives Local and R4 Interconnects up to Four Rows C4 Interconnect Driving Up LAB Row Interconnect Adjacent LAB can drive onto neighboring LAB's C4 interconnect Local Interconnect C4 Interconnect Driving Down Note to Figure 2-48: (1) Each C4 interconnect can drive either up or down four rows. Altera Corporation October 2007 2-67 Stratix II GX Device Handbook, Volume 1 MultiTrack Interconnect C16 column interconnects span a length of 16 LABs and provide the fastest resource for long column connections between LABs, TriMatrix memory blocks, DSP blocks, and IOEs. C16 interconnects can cross M-RAM blocks and also drive to row and column interconnects at every fourth LAB. C16 interconnects drive LAB local interconnects via C4 and R4 interconnects and do not drive LAB local interconnects directly. All embedded blocks communicate with the logic array similar to LAB-to-LAB interfaces. Each block (that is, TriMatrix memory and DSP blocks) connects to row and column interconnects and has local interconnect regions driven by row and column interconnects. These blocks also have direct link interconnects for fast connections to and from a neighboring LAB. All blocks are fed by the row LAB clocks, labclk[5..0]. Table 2-18 shows the Stratix II GX device's routing scheme. Table 2-18. Stratix II GX Device Routing Scheme (Part 1 of 2) Shared arithmetic chain v Carry chain v Register chain v Row IOE Column IOE DSP Blocks M-RAM Block M4K RAM Block v v v v v v v Local interconnect Direct link interconnect v R4 interconnect v v v v v v v v v R24 interconnect v C4 interconnect v v v v v v C16 interconnect v v v v v v v M512 RAM block v v v v M4K RAM block v v v v ALM M512 RAM Block ALM C16 Interconnect C4 Interconnect R24 Interconnect R4 Interconnect Direct Link Interconnect Local Interconnect Register Chain Carry Chain Source Shared Arithmetic Chain Destination M-RAM block v v v v DSP blocks v v 2-68 Stratix II GX Device Handbook, Volume 1 v Altera Corporation October 2007 Stratix II GX Architecture Table 2-18. Stratix II GX Device Routing Scheme (Part 2 of 2) Column IOE v Row IOE v v v v TriMatrix Memory Row IOE Column IOE DSP Blocks M-RAM Block M4K RAM Block M512 RAM Block ALM C16 Interconnect C4 Interconnect R24 Interconnect R4 Interconnect Direct Link Interconnect Local Interconnect Register Chain Carry Chain Source Shared Arithmetic Chain Destination v v TriMatrix memory consists of three types of RAM blocks: M512, M4K, and M-RAM. Although these memory blocks are different, they can all implement various types of memory with or without parity, including true dual-port, simple dual-port, and single-port RAM, ROM, and FIFO buffers. Table 2-19 shows the size and features of the different RAM blocks. Table 2-19. TriMatrix Memory Features (Part 1 of 2) Memory Feature Maximum performance M512 RAM Block (32 x 18 Bits) M4K RAM Block (128 x 36 Bits) M-RAM Block (4K x 144 Bits) 500 MHz 550 MHz 420 MHz v v True dual-port memory Simple dual-port memory v v v Single-port memory v v v Shift register v v ROM v v (1) FIFO buffer v v v v v Pack mode Byte enable v Address clock enable v v v v Parity bits v v v Mixed clock mode v v v Memory initialization (.mif) v v Altera Corporation October 2007 2-69 Stratix II GX Device Handbook, Volume 1 TriMatrix Memory Table 2-19. TriMatrix Memory Features (Part 2 of 2) Memory Feature Simple dual-port memory mixed width support M512 RAM Block (32 x 18 Bits) M4K RAM Block (128 x 36 Bits) M-RAM Block (4K x 144 Bits) v v v v v Outputs cleared Outputs cleared Outputs unknown Output registers Output registers True dual-port memory mixed width support Power-up conditions Register clears Mixed-port read-during-write Unknown output/old data Unknown output/old data Configurations 512 x 1 256 x 2 128 x 4 64 x 8 64 x 9 32 x 16 32 x 18 4K x 1 2K x 2 1K x 4 512 x 8 512 x 9 256 x 16 256 x 18 128 x 32 128 x 36 Output registers Unknown output 64K x 8 64K x 9 32K x 16 32K x 18 16K x 32 16K x 36 8K x 64 8K x 72 4K x 128 4K x 144 Note to Table 2-19: (1) Violating the setup or hold time on the memory block address registers could corrupt memory contents. This applies to both read and write operations. TriMatrix memory provides three different memory sizes for efficient application support. The Quartus II software automatically partitions the user-defined memory into the embedded memory blocks using the most efficient size combinations. You can also manually assign the memory to a specific block size or a mixture of block sizes. M512 RAM Block The M512 RAM block is a simple dual-port memory block and is useful for implementing small FIFO buffers, DSP, and clock domain transfer applications. Each block contains 576 RAM bits (including parity bits). M512 RAM blocks can be configured in the following modes: Simple dual-port RAM Single-port RAM FIFO ROM Shift register When configured as RAM or ROM, you can use an initialization file to pre-load the memory contents. 2-70 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture M512 RAM blocks can have different clocks on its inputs and outputs. The wren, datain, and write address registers are all clocked together from one of the two clocks feeding the block. The read address, rden, and output registers can be clocked by either of the two clocks driving the block, allowing the RAM block to operate in read and write or input and output clock modes. Only the output register can be bypassed. The six labclk signals or local interconnect can drive the inclock, outclock, wren, rden, and outclr signals. Because of the advanced interconnect between the LAB and M512 RAM blocks, ALMs can also control the wren and rden signals and the RAM clock, clock enable, and asynchronous clear signals. Figure 2-49 shows the M512 RAM block control signal generation logic. Figure 2-49. M512 RAM Block Control Signals Dedicated Row LAB Clocks 6 Local Interconnect Local Interconnect Local Interconnect Local Interconnect Local Interconnect Local Interconnect Local Interconnect Local Interconnect Altera Corporation October 2007 outclocken inclocken inclock outclock wren rden outclr 2-71 Stratix II GX Device Handbook, Volume 1 TriMatrix Memory The RAM blocks in Stratix II GX devices have local interconnects to allow ALMs and interconnects to drive into RAM blocks. The M512 RAM block local interconnect is driven by the R4, C4, and direct link interconnects from adjacent LABs. The M512 RAM blocks can communicate with LABs on either the left or right side through these row interconnects or with LAB columns on the left or right side with the column interconnects. The M512 RAM block has up to 16 direct link input connections from the left adjacent LABs and another 16 from the right adjacent LAB. M512 RAM outputs can also connect to left and right LABs through direct link interconnect. The M512 RAM block has equal opportunity for access and performance to and from LABs on either its left or right side. Figure 2-50 shows the M512 RAM block to logic array interface. Figure 2-50. M512 RAM Block LAB Row Interface C4 Interconnect Direct link interconnect to adjacent LAB R4 Interconnect 16 Direct link interconnect to adjacent LAB 36 dataout M4K RAM Block Direct link interconnect from adjacent LAB Direct link interconnect from adjacent LAB datain control signals byte enable clocks address 6 M4K RAM Block Local Interconnect Region 2-72 Stratix II GX Device Handbook, Volume 1 LAB Row Clocks Altera Corporation October 2007 Stratix II GX Architecture M4K RAM Blocks The M4K RAM block includes support for true dual-port RAM. The M4K RAM block is used to implement buffers for a wide variety of applications such as storing processor code, implementing lookup schemes, and implementing larger memory applications. Each block contains 4,608 RAM bits (including parity bits). M4K RAM blocks can be configured in the following modes: True dual-port RAM Simple dual-port RAM Single-port RAM FIFO ROM Shift register When configured as RAM or ROM, you can use an initialization file to pre-load the memory contents. The M4K RAM blocks allow for different clocks on their inputs and outputs. Either of the two clocks feeding the block can clock M4K RAM block registers (renwe, address, byte enable, datain, and output registers). Only the output register can be bypassed. The six labclk signals or local interconnects can drive the control signals for the A and B ports of the M4K RAM block. ALMs can also control the clock_a, clock_b, renwe_a, renwe_b, clr_a, clr_b, clocken_a, and clocken_b signals, as shown in Figure 2-51. Altera Corporation October 2007 2-73 Stratix II GX Device Handbook, Volume 1 TriMatrix Memory Figure 2-51. M4K RAM Block Control Signals Dedicated Row LAB Clocks 6 Local Interconnect Local Interconnect Local Interconnect Local Interconnect Local Interconnect Local Interconnect Local Interconnect Local Interconnect clocken_b clock_b clock_a clocken_a renwe_b renwe_a aclr_b aclr_a The R4, C4, and direct link interconnects from adjacent LABs drive the M4K RAM block local interconnect. The M4K RAM blocks can communicate with LABs on either the left or right side through these row resources or with LAB columns on either the right or left with the column resources. Up to 16 direct link input connections to the M4K RAM block are possible from the left adjacent LABs and another 16 possible from the right adjacent LAB. M4K RAM block outputs can also connect to left and right LABs through direct link interconnect. Figure 2-52 shows the M4K RAM block to logic array interface. 2-74 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figure 2-52. M4K RAM Block LAB Row Interface C4 Interconnect Direct link interconnect to adjacent LAB R4 Interconnect 16 Direct link interconnect to adjacent LAB 36 dataout M4K RAM Block Direct link interconnect from adjacent LAB Direct link interconnect from adjacent LAB datain control signals byte enable clocks address 6 M4K RAM Block Local Interconnect Region LAB Row Clocks M-RAM Block The largest TriMatrix memory block, the M-RAM block, is useful for applications where a large volume of data must be stored on-chip. Each block contains 589,824 RAM bits (including parity bits). The M-RAM block can be configured in the following modes: True dual-port RAM Simple dual-port RAM Single-port RAM FIFO You cannot use an initialization file to initialize the contents of a M-RAM block. All M-RAM block contents power up to an undefined value. Only synchronous operation is supported in the M-RAM block, so all inputs are registered. Output registers can be bypassed. Altera Corporation October 2007 2-75 Stratix II GX Device Handbook, Volume 1 TriMatrix Memory Similar to all RAM blocks, M-RAM blocks can have different clocks on their inputs and outputs. Either of the two clocks feeding the block can clock M-RAM block registers (renwe, address, byte enable, datain, and output registers). The output register can be bypassed. The six labclk signals or local interconnect can drive the control signals for the A and B ports of the M-RAM block. ALMs can also control the clock_a, clock_b, renwe_a, renwe_b, clr_a, clr_b, clocken_a, and clocken_b signals, as shown in Figure 2-53. Figure 2-53. M-RAM Block Control Signals Dedicated Row LAB Clocks 6 Local Interconnect Local Interconnect Local Interconnect Local Interconnect Local Interconnect Local Interconnect Local Interconnect Local Interconnect Local Interconnect Local Interconnect clocken_a Local Interconnect clock_a renwe_a aclr_a clock_b aclr_b renwe_b Local Interconnect clocken_b The R4, R24, C4, and direct link interconnects from adjacent LABs on either the right or left side drive the M-RAM block local interconnect. Up to 16 direct link input connections to the M-RAM block are possible from the left adjacent LABs and another 16 possible from the right adjacent LAB. M-RAM block outputs can also connect to left and right LABs through direct link interconnect. Figure 2-54 shows an example floorplan for the EP2SGX130 device and the location of the M-RAM interfaces. Figures 2-55 and 2-56 show the interface between the M-RAM block and the logic array. 2-76 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figure 2-54. EP2SGX130 Device with M-RAM Interface Locations Note (1) M-RAM blocks interface to LABs on right and left sides for easy access to horizontal I/O pins M4K Blocks M-RAM Block M-RAM Block M-RAM Block M-RAM Block M-RAM Block M-RAM Block M512 Blocks DSP Blocks LABs DSP Blocks Note to Figure 2-54: (1) The device shown is an EP2SGX130 device. The number and position of M-RAM blocks varies in other devices. Altera Corporation October 2007 2-77 Stratix II GX Device Handbook, Volume 1 TriMatrix Memory Figure 2-55. M-RAM Block LAB Row Interface Note (1) Row Unit Interface Allows LAB Rows to Drive Port A Datain, Dataout, Address and Control Signals to and from M-RAM Block Row Unit Interface Allows LAB Rows to Drive Port B Datain, Dataout, Address and Control Signals to and from M-RAM Block L0 R0 L1 R1 M-RAM Block L2 Port A Port B R2 L3 R3 L4 R4 L5 R5 LAB Interface Blocks LABs in Row M-RAM Boundary LABs in Row M-RAM Boundary Note to Figure 2-55: (1) Only R24 and C16 interconnects cross the M-RAM block boundaries. 2-78 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figure 2-56. M-RAM Row Unit Interface to Interconnect C4 Interconnect R4 and R24 Interconnects M-RAM Block LAB Up to 16 dataout_a[ ] 16 Up to 28 Direct Link Interconnects datain_a[ ] addressa[ ] addr_ena_a renwe_a byteena_a[ ] clocken_a clock_a aclr_a Row Interface Block M-RAM Block to LAB Row Interface Block Interconnect Region Altera Corporation October 2007 2-79 Stratix II GX Device Handbook, Volume 1 TriMatrix Memory Table 2-20 shows the input and output data signal connections along with the address and control signal input connections to the row unit interfaces (L0 to L5 and R0 to R5). Table 2-20. M-RAM Row Interface Unit Signals f Unit Interface Block Input Signals Output Signals L0 datain_a[14..0] byteena_a[1..0] dataout_a[11..0] L1 datain_a[29..15] byteena_a[3..2] dataout_a[23..12] L2 datain_a[35..30] addressa[4..0] addr_ena_a clock_a clocken_a renwe_a aclr_a dataout_a[35..24] L3 addressa[15..5] datain_a[41..36] dataout_a[47..36] L4 datain_a[56..42] byteena_a[5..4] dataout_a[59..48] L5 datain_a[71..57] byteena_a[7..6] dataout_a[71..60] R0 datain_b[14..0] byteena_b[1..0] dataout_b[11..0] R1 datain_b[29..15] byteena_b[3..2] dataout_b[23..12] R2 datain_b[35..30] addressb[4..0] addr_ena_b clock_b clocken_b renwe_b aclr_b dataout_b[35..24] R3 addressb[15..5] datain_b[41..36] dataout_b[47..36] R4 datain_b[56..42] byteena_b[5..4] dataout_b[59..48] R5 datain_b[71..57] byteena_b[7..6] dataout_b[71..60] Refer to the TriMatrix Embedded Memory Blocks in Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II GX Device Handbook for more information on TriMatrix memory. 2-80 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Digital Signal Processing (DSP) Block The most commonly used DSP functions are finite impulse response (FIR) filters, complex FIR filters, infinite impulse response (IIR) filters, fast Fourier transform (FFT) functions, direct cosine transform (DCT) functions, and correlators. All of these use the multiplier as the fundamental building block. Additionally, some applications need specialized operations such as multiply-add and multiply-accumulate operations. Stratix II GX devices provide DSP blocks to meet the arithmetic requirements of these functions. Each Stratix II GX device has two to four columns of DSP blocks to efficiently implement DSP functions faster than ALM-based implementations. Stratix II GX devices have up to 24 DSP blocks per column (see Table 2-21). Each DSP block can be configured to support up to: Eight 9 x 9-bit multipliers Four 18 x 18-bit multipliers One 36 x 36-bit multiplier As indicated, the Stratix II GX DSP block can support one 36 x 36-bit multiplier in a single DSP block, and is true for any combination of signed, unsigned, or mixed sign multiplications. Altera Corporation October 2007 2-81 Stratix II GX Device Handbook, Volume 1 Digital Signal Processing (DSP) Block Figures 2-57 shows one of the columns with surrounding LAB rows. Figure 2-57. DSP Blocks Arranged in Columns DSP Block Column 4 LAB Rows 2-82 Stratix II GX Device Handbook, Volume 1 DSP Block Altera Corporation October 2007 Stratix II GX Architecture Table 2-21 shows the number of DSP blocks in each Stratix II GX device. DSP block multipliers can optionally feed an adder/subtractor or accumulator in the block, depending on the configuration, which makes routing to ALMs easier, saves ALM routing resources, and increases performance because all connections and blocks are in the DSP block. Table 2-21. DSP Blocks in Stratix II GX Devices Note (1) DSP Blocks Total 9 x 9 Multipliers Total 18 x 18 Multipliers Total 36 x 36 Multipliers EP2SGX30 16 128 64 16 EP2SGX60 36 288 144 36 EP2SGX90 48 384 192 48 EP2SGX130 63 504 252 63 Device Note to Table 2-21: (1) This list only shows functions that can fit into a single DSP block. Multiple DSP blocks can support larger multiplication functions. Additionally, the DSP block input registers can efficiently implement shift registers for FIR filter applications, and DSP blocks support Q1.15 format rounding and saturation. Figure 2-58 shows the top-level diagram of the DSP block configured for 18 x 18-bit multiplier mode. Altera Corporation October 2007 2-83 Stratix II GX Device Handbook, Volume 1 Digital Signal Processing (DSP) Block Figure 2-58. DSP Block Diagram for 18 x 18-Bit Configuration Optional Serial Shift Register Inputs from Previous DSP Block Multiplier Stage D Optional Stage Configurable as Accumulator or Dynamic Adder/Subtractor Q ENA CLRN D D ENA CLRN Q Output Selection Multiplexer Q ENA CLRN Adder/ Subtractor/ Accumulator 1 D Q ENA CLRN D D ENA CLRN Q Q ENA CLRN Summation D Q ENA CLRN D D ENA CLRN Q Q Summation Stage for Adding Four Multipliers Together Optional Output Register Stage ENA CLRN Adder/ Subtractor/ Accumulator 2 D Optional Serial Shift Register Outputs to Next DSP Block in the Column Q ENA CLRN D D ENA CLRN Q ENA CLRN Q Optional Pipeline Register Stage Optional Input Register Stage with Parallel Input or Shift Register Configuration 2-84 Stratix II GX Device Handbook, Volume 1 to MultiTrack Interconnect Altera Corporation October 2007 Stratix II GX Architecture Modes of Operation The adder, subtractor, and accumulate functions of a DSP block have four modes of operation: Simple multiplier Multiply-accumulator Two-multipliers adder Four-multipliers adder Table 2-22 shows the different number of multipliers possible in each DSP block mode according to size. These modes allow the DSP blocks to implement numerous applications for DSP including FFTs, complex FIR, FIR, 2D FIR filters, equalizers, IIR, correlators, matrix multiplication, and many other functions. The DSP blocks also support mixed modes and mixed multiplier sizes in the same block. For example, half of one DSP block can implement one 18 x 18-bit multiplier in multiply-accumulator mode, while the other half of the DSP block implements four 9 x 9-bit multipliers in simple multiplier mode. Table 2-22. Multiplier Size and Configurations per DSP Block DSP Block Mode 9x9 18 x 18 36 x 36 Eight multipliers with eight product outputs Four multipliers with four product outputs One multiplier with one product output Multiply-accumulator -- Two 52-bit multiplyaccumulate blocks -- Two-multipliers adder Four two-multiplier adder (two 9 x 9 complex multiply) Two two-multiplier adder (one 18 x 18 complex multiply) -- Four-multipliers adder Two four-multiplier adder One four-multiplier adder -- Multiplier DSP Block Interface The Stratix II GX device DSP block input registers can generate a shift register that can cascade down in the same DSP block column. Dedicated connections between DSP blocks provide fast connections between the shift register inputs to cascade the shift register chains. You can cascade registers within multiple DSP blocks for 9 x 9- or 18 x 18-bit FIR filters larger than four taps, with additional adder stages implemented in ALMs. If the DSP block is configured as 36 x 36 bits, the adder, subtractor, or accumulator stages are implemented in ALMs. Each DSP block can route the shift register chain out of the block to cascade multiple columns of DSP blocks. Altera Corporation October 2007 2-85 Stratix II GX Device Handbook, Volume 1 Digital Signal Processing (DSP) Block The DSP block is divided into four block units that interface with four LAB rows on the left and right. Each block unit can be considered one complete 18 x 18-bit multiplier with 36 inputs and 36 outputs. A local interconnect region is associated with each DSP block. Like a LAB, this interconnect region can be fed with 16 direct link interconnects from the LAB to the left or right of the DSP block in the same row. R4 and C4 routing resources can access the DSP block's local interconnect region. The outputs also work similarly to LAB outputs. Eighteen outputs from the DSP block can drive to the left LAB through direct link interconnects and 18 can drive to the right LAB through direct link interconnects. All 36 outputs can drive to R4 and C4 routing interconnects. Outputs can drive right- or left-column routing. Figures 2-59 and 2-60 show the DSP block interfaces to LAB rows. Figure 2-59. DSP Block Interconnect Interface DSP Block R4, C4 & Direct Link Interconnects OA[17..0] OB[17..0] R4, C4 & Direct Link Interconnects A1[17..0] B1[17..0] OC[17..0] OD[17..0] A2[17..0] B2[17..0] OE[17..0] OF[17..0] A3[17..0] B3[17..0] OG[17..0] OH[17..0] A4[17..0] B4[17..0] 2-86 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figure 2-60. DSP Block Interface to Interconnect Direct Link Interconnect from Adjacent LAB C4 Interconnect Direct Link Outputs to Adjacent LABs R4 Interconnect Direct Link Interconnect from Adjacent LAB 36 DSP Block Row Structure 36 LAB LAB 18 16 16 12 Control 36 A[17..0] B[17..0] OA[17..0] OB[17..0] 36 Row Interface Block DSP Block to LAB Row Interface Block Interconnect Region 36 Inputs per Row 36 Outputs per Row A bus of 44 control signals feeds the entire DSP block. These signals include clocks, asynchronous clears, clock enables, signed and unsigned control signals, addition and subtraction control signals, rounding and saturation control signals, and accumulator synchronous loads. The clock signals are routed from LAB row clocks and are generated from specific LAB rows at the DSP block interface. The LAB row source for control signals, data inputs, and outputs is shown in Table 2-23. f Altera Corporation October 2007 Refer to the DSP Blocks in Stratix II GX Devices chapter in volume 2 of the Stratix II GX Device Handbook for more information on DSP blocks. 2-87 Stratix II GX Device Handbook, Volume 1 Digital Signal Processing (DSP) Block Table 2-23. DSP Block Signal Sources and Destinations LAB Row at Interface Control Signals Generated Data Inputs Data Outputs 0 clock0 aclr0 ena0 mult01_saturate addnsub1_round/ accum_round addnsub1 signa sourcea sourceb A1[17..0] B1[17..0] OA[17..0] OB[17..0] 1 clock1 aclr1 ena1 accum_saturate mult01_round accum_sload sourcea sourceb mode0 A2[17..0] B2[17..0] OC[17..0] OD[17..0] 2 clock2 aclr2 ena2 mult23_saturate addnsub3_round/ accum_round addnsub3 sign_b sourcea sourceb A3[17..0] B3[17..0] OE[17..0] OF[17..0] 3 clock3 aclr3 ena3 accum_saturate mult23_round accum_sload sourcea sourceb mode1 A4[17..0] B4[17..0] OG[17..0] OH[17..0] 2-88 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture PLLs and Clock Networks Stratix II GX devices provide a hierarchical clock structure and multiple phase-locked loops (PLLs) with advanced features. The large number of clocking resources in combination with the clock synthesis precision provided by enhanced and fast PLLs provides a complete clock management solution. Global and Hierarchical Clocking Stratix II GX devices provide 16 dedicated global clock networks and 32 regional clock networks (eight per device quadrant). These clocks are organized into a hierarchical clock structure that allows for up to 24 clocks per device region with low skew and delay. This hierarchical clocking scheme provides up to 48 unique clock domains in Stratix II GX devices. There are 12 dedicated clock pins to drive either the global or regional clock networks. Four clock pins drive each side of the device, as shown in Figures 2-61 and 2-62. Internal logic and enhanced and fast PLL outputs can also drive the global and regional clock networks. Each global and regional clock has a clock control block, which controls the selection of the clock source and dynamically enables or disables the clock to reduce power consumption. Table 2-24 shows global and regional clock features. Table 2-24. Global and Regional Clock Features Feature Global Clocks Regional Clocks Number per device 16 32 Number available per quadrant 16 8 Clock pins, PLL outputs, core routings, inter-transceiver clocks Clock pins, PLL outputs, core routings, inter-transceiver clocks Dynamic clock source selection v -- Dynamic enable/disable v v Sources Global Clock Network These clocks drive throughout the entire device, feeding all device quadrants. The global clock networks can be used as clock sources for all resources in the device IOEs, ALMs, DSP blocks, and all memory blocks. These resources can also be used for control signals, such as clock enables and synchronous or asynchronous clears fed from the external pin. The global clock networks can also be driven by internal logic for internally Altera Corporation October 2007 2-89 Stratix II GX Device Handbook, Volume 1 PLLs and Clock Networks generated global clocks and asynchronous clears, clock enables, or other control signals with large fanout. Figure 2-61 shows the 12 dedicated CLK pins driving global clock networks. Figure 2-61. Global Clocking CLK[15..12] Global Clock [15..0] CLK[3..0] Global Clock [15..0] CLK[7..4] Regional Clock Network There are eight regional clock networks (RCLK[7..0]) in each quadrant of the Stratix II GX device that are driven by the dedicated CLK[15..12]and CLK[7..0] input pins, by PLL outputs, or by internal logic. The regional clock networks provide the lowest clock delay and skew for logic contained in a single quadrant. The CLK pins symmetrically drive the RCLK networks in a particular quadrant, as shown in Figure 2-62. 2-90 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figure 2-62. Regional Clocks CLK[15..12] 11 5 7 CLK[3..0] RCLK [31..28] RCLK [27..24] RCLK [3..0] RCLK [23..20] RCLK [7..4] RCLK [19..16] Stratix II GX Transceiver Block 1 2 8 RCLK [11..8] Stratix II GX Transceiver Block RCLK [15..12] 12 6 CLK[7..4] Dual-Regional Clock Network A single source (CLK pin or PLL output) can generate a dual-regional clock by driving two regional clock network lines in adjacent quadrants (one from each quadrant), which allows logic that spans multiple quadrants to utilize the same low skew clock. The routing of this clock signal on an entire side has approximately the same speed but slightly higher clock skew when compared with a clock signal that drives a single quadrant. Internal logic-array routing can also drive a dual-regional clock. Clock pins and enhanced PLL outputs on the top and bottom can drive horizontal dual-regional clocks. Clock pins and fast PLL outputs on the left and right can drive vertical dual-regional clocks, as shown in Figure 2-63. Corner PLLs cannot drive dual-regional clocks. Altera Corporation October 2007 2-91 Stratix II GX Device Handbook, Volume 1 PLLs and Clock Networks Figure 2-63. Dual-Regional Clocks Clock Pins or PLL Clock Outputs Can Drive Dual-Regional Network Clock Pins or PLL Clock Outputs Can Drive Dual-Regional Network CLK[15..12] CLK[3..0] CLK[15..12] CLK[3..0] PLLs PLLs CLK[7..4] CLK[7..4] Combined Resources Within each quadrant, there are 24 distinct dedicated clocking resources consisting of 16 global clock lines and 8 regional clock lines. Multiplexers are used with these clocks to form buses to drive LAB row clocks, column IOE clocks, or row IOE clocks. Another multiplexer is used at the LAB level to select three of the six row clocks to feed the ALM registers in the LAB (see Figure 2-64). Figure 2-64. Hierarchical Clock Networks per Quadrant Clocks Available to a Quadrant or Half-Quadrant Column I/O Cell IO_CLK[7..0] Global Clock Network [15..0] Clock [23..0] Lab Row Clock [5..0] Regional Clock Network [7..0] Row I/O Cell IO_CLK[7..0] 2-92 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture IOE clocks have row and column block regions that are clocked by 8 I/O clock signals chosen from the 24 quadrant clock resources. Figures 2-65 and 2-66 show the quadrant relationship to the I/O clock regions. Figure 2-65. EP2SGX30 Device I/O Clock Groups IO_CLKA[7..0] IO_CLKB[7..0] 8 8 I/O Clock Regions 8 24 Clocks in the Quadrant 24 Clocks in the Quadrant IO_CLKH[7..0] IO_CLKC[7..0] 8 8 IO_CLKG[7..0] IO_CLKD[7..0] 24 Clocks in the Quadrant 24 Clocks in the Quadrant 8 8 8 IO_CLKF[7..0] Altera Corporation October 2007 IO_CLKE[7..0] 2-93 Stratix II GX Device Handbook, Volume 1 PLLs and Clock Networks Figure 2-66. EP2SGX60, EP2SGX90 and EP2SGX130 Device I/O Clock Groups IO_CLKA[7..0] IO_CLKB[7..0] 8 IO_CLKC[7..0] 8 IO_CLKD[7..0] 8 8 I/O Clock Regions 8 8 IO_CLKE[7..0] IO_CLKP[7..0] 24 Clocks in the Quadrant 24 Clocks in the Quadrant 8 8 IO_CLKF[7..0] IO_CLKO[7..0] 8 8 IO_CLKN[7..0] IO_CLKG[7..0] 24 Clocks in the Quadrant 24 Clocks in the Quadrant 8 8 IO_CLKH[7..0] IO_CLKM[7..0] 8 8 IO_CLKL[7..0] 8 IO_CLKK[7..0] 8 IO_CLKJ[7..0] IO_CLKI[7..0] You can use the Quartus II software to control whether a clock input pin drives either a global, regional, or dual-regional clock network. The Quartus II software automatically selects the clocking resources if not specified. Clock Control Block Each global clock, regional clock, and PLL external clock output has its own clock control block. The control block has two functions: Clock source selection (dynamic selection for global clocks) Clock power-down (dynamic clock enable or disable) 2-94 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figures 2-67 through 2-69 show the clock control block for the global clock, regional clock, and PLL external clock output, respectively. Figure 2-67. Global Clock Control Blocks CLKp Pins PLL Counter Outputs CLKSELECT[1..0] (1) 2 2 CLKn Pin 2 Internal Logic Static Clock Select (2) This multiplexer supports User-Controllable Dynamic Switching Enable/ Disable Internal Logic GCLK Notes to Figure 2-67: (1) (2) These clock select signals can be dynamically controlled through internal logic when the device is operating in user mode. These clock select signals can only be set through a configuration file (SRAM Object File [.sof] or Programmer Object File [.pof]) and cannot be dynamically controlled during user mode operation. Figure 2-68. Regional Clock Control Blocks CLKp Pin PLL Counter Outputs CLKn Pin (2) 2 Internal Logic Static Clock Select (1) Enable/ Disable Internal Logic RCLK Notes to Figure 2-68: (1) (2) These clock select signals can only be set through a configuration file (.sof or .pof) and cannot be dynamically controlled during user mode operation. Only the CLKn pins on the top and bottom of the device feed to regional clock select. Altera Corporation October 2007 2-95 Stratix II GX Device Handbook, Volume 1 PLLs and Clock Networks Figure 2-69. External PLL Output Clock Control Blocks PLL Counter Outputs (c[5..0]) 6 Static Clock Select (1) Enable/ Disable Internal Logic IOE (2) Internal Logic Static Clock Select (1) PLL_OUT Pin Notes to Figure 2-69: (1) (2) These clock select signals can only be set through a configuration file (.sof or .pof) and cannot be dynamically controlled during user mode operation. The clock control block feeds to a multiplexer within the PLL_OUT pin's IOE. The PLL_OUT pin is a dual-purpose pin. Therefore, this multiplexer selects either an internal signal or the output of the clock control block. For the global clock control block, the clock source selection can be controlled either statically or dynamically. You have the option of statically selecting the clock source by using the Quartus II software to set specific configuration bits in the configuration file (.sof or .pof) or you can control the selection dynamically by using internal logic to drive the multiplexer select inputs. When selecting statically, the clock source can be set to any of the inputs to the select multiplexer. When selecting the clock source dynamically, you can either select between two PLL outputs (such as the C0 or C1 outputs from one PLL), between two PLLs (such as the C0/C1 clock output of one PLL or the C0/C1 c1ock output of the other PLL), between two clock pins (such as CLK0 or CLK1), or between a combination of clock pins or PLL outputs. For the regional and PLL_OUT clock control block, the clock source selection can only be controlled statically using configuration bits. Any of the inputs to the clock select multiplexer can be set as the clock source. 2-96 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture The Stratix II GX clock networks can be disabled (powered down) by both static and dynamic approaches. When a clock net is powered down, all the logic fed by the clock net is in an off-state, thereby reducing the overall power consumption of the device. The global and regional clock networks can be powered down statically through a setting in the configuration file (.sof or .pof). Clock networks that are not used are automatically powered down through configuration bit settings in the configuration file generated by the Quartus II software. The dynamic clock enable and disable feature allows the internal logic to control power up and down synchronously on GCLK and RCLK nets and PLL_OUT pins. This function is independent of the PLL and is applied directly on the clock network or PLL_OUT pin, as shown in Figures 2-67 through 2-69. Enhanced and Fast PLLs Stratix II GX devices provide robust clock management and synthesis using up to four enhanced PLLs and four fast PLLs. These PLLs increase performance and provide advanced clock interfacing and clock frequency synthesis. With features such as clock switchover, spread spectrum clocking, reconfigurable bandwidth, phase control, and reconfigurable phase shifting, the Stratix II GX device's enhanced PLLs provide you with complete control of clocks and system timing. The fast PLLs provide general purpose clocking with multiplication and phase shifting as well as high-speed outputs for high-speed differential I/O support. Enhanced and fast PLLs work together with the Stratix II GX high-speed I/O and advanced clock architecture to provide significant improvements in system performance and bandwidth. Altera Corporation October 2007 2-97 Stratix II GX Device Handbook, Volume 1 PLLs and Clock Networks The Quartus II software enables the PLLs and their features without requiring any external devices. Table 2-25 shows the PLLs available for each Stratix II GX device and their type. Table 2-25. Stratix II GX Device PLL Availability Device Notes (1), (2) Fast PLLs 1 2 3 (3) 4 (3) 7 EP2SGX30 v v EP2SGX60 v v v EP2SGX90 v v v EP2SGX130 v v v Enhanced PLLs 8 9 (3) 10 (3) 5 6 11 12 v v v v v v v v v v v v v v v v v Notes to Table 2-25: (1) (2) (3) EP2SGX30C/D and EP2SGX60C/D devices only have two fast PLLs (1 and 2), but the connectivity from these two PLLs to the global and regional clock networks remains the same as shown. The EP2S60C/D devices only have two enhanced PLLs (5 and 6). The global or regional clocks in a fast PLL's quadrant can drive the fast PLL input. A dedicated clock input pin or other PLL must drive the global or regional source. The source cannot be driven by internally generated logic before driving the fast PLL. PLLs 3, 4, 9, and 10 are not available in Stratix II GX devices. However, these PLLs are listed in Table 2-25 because the Stratix II GX PLL numbering scheme is consistent with Stratix and Stratix II devices. 2-98 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Table 2-26 shows the enhanced PLL and fast PLL features in Stratix II GX devices. Table 2-26. Stratix II GX PLL Features Feature Enhanced PLL Fast PLL Clock multiplication and division m/(n x post-scale counter) (1) m/(n x post-scale counter) (2) Down to 125-ps increments (3), (4) Down to 125-ps increments (3), (4) Clock switchover v v (5) PLL reconfiguration v v Reconfigurable bandwidth v v Spread spectrum clocking v Programmable duty cycle v v Number of internal clock outputs 6 4 Number of external clock outputs Three differential/six single-ended (6) Number of feedback clock inputs One single-ended or differential (7), (8) Phase shift Notes to Table 2-26: (1) (2) (3) (4) (5) (6) (7) (8) For enhanced PLLs, m, n range from 1 to 256 and post-scale counters range from 1 to 512 with 50% duty cycle. For fast PLLs, m, and post-scale counters range from 1 to 32. The n counter ranges from 1 to 4. The smallest phase shift is determined by the voltage controlled oscillator (VCO) period divided by 8. For degree increments, Stratix II GX devices can shift all output frequencies in increments of at least 45. Smaller degree increments are possible depending on the frequency and divide parameters. Stratix II GX fast PLLs only support manual clock switchover. Fast PLLs can drive to any I/O pin as an external clock. For high-speed differential I/O pins, the device uses a data channel to generate txclkout. If the feedback input is used, you will lose one (or two, if fBIN is differential) external clock output pin. Every Stratix II GX device has at least two enhanced PLLs with one single-ended or differential external feedback input per PLL. Altera Corporation October 2007 2-99 Stratix II GX Device Handbook, Volume 1 PLLs and Clock Networks Figure 2-70 shows a top-level diagram of the Stratix II GX device and PLL floorplan. Figure 2-70. PLL Locations CLK[15..12] FPLL7CLK 7 CLK[3..0] 1 2 11 5 12 6 PLLs FPLL8CLK 8 CLK[7..4] Figures 2-71 and 2-72 shows global and regional clocking from the fast PLL outputs and the side clock pins. The connections to the global and regional clocks from the fast PLL outputs, internal drivers, and the CLK pins on the left side of the device are shown in Table 2-27. 2-100 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figure 2-71. Global and Regional Clock Connections from Center Clock Pins and Fast PLL Outputs Notes (1), (2) C0 CLK0 Fast PLL 1 CLK1 C1 C2 C3 Logic Array Signal Input To Clock Network C0 Fast PLL 2 CLK2 CLK3 C1 C2 C3 RCLK0 RCLK2 RCLK1 RCLK4 RCLK3 RCLK6 RCLK5 RCLK7 GCLK0 GCLK1 GCLK2 GCLK3 Notes to Figure 2-71: (1) (2) EP2SGX30C/D and P2SGX60C/D devices only have two fast PLLs (1 and 2) and two Enhanced PLLs (5 and 6), but the connectivity from these PLLs to the global and regional clock networks remains the same as shown. The global or regional clocks in a fast PLL's quadrant can drive the fast PLL input. A dedicated clock input pin or other PLL must drive the global or regional source. The source cannot be driven by internally generated logic before driving the fast PLL. Altera Corporation October 2007 2-101 Stratix II GX Device Handbook, Volume 1 PLLs and Clock Networks Figure 2-72. Global and Regional Clock Connections from Corner Clock Pins and Fast PLL Outputs Notes (1), (2) RCLK1 RCLK3 RCLK0 RCLK2 RCLK4 RCLK6 C0 Fast PLL 7 C1 C2 C3 C0 Fast PLL 8 C1 C2 C3 RCLK5 GCLK0 RCLK7 GCLK2 GCLK1 GCLK3 Notes to Figure 2-72: (1) (2) The global or regional clocks in a fast PLL's quadrant can drive the fast PLL input. A dedicated clock input pin or other PLL must drive the global or regional source. The source cannot be driven by internally generated logic before driving the fast PLL. EP2SGX30C/D and EP2SGX60C/D devices only have two fast PLLs (1 and 2); they do not contain corner fast PLLs. RCLK7 RCLK6 RCLK5 RCLK4 v RCLK3 v RCLK2 v RCLK1 v CLK1p RCLK0 CLK1 CLK0p CLK3 CLK0 Left Side Global and Regional Clock Network Connectivity CLK2 Table 2-27. Global and Regional Clock Connections from Left Side Clock Pins and Fast PLL Outputs (Part 1 of 3) Clock pins CLK2p v v v v v v v v v v CLK3p 2-102 Stratix II GX Device Handbook, Volume 1 v v Altera Corporation October 2007 Stratix II GX Architecture GCLKDRV2 v v GCLKDRV3 v v RCLK7 v RCLK6 v RCLK5 GCLKDRV1 RCLK4 v RCLK3 v RCLK2 GCLKDRV0 RCLK1 CLK3 CLK1 CLK2 CLK0 Left Side Global and Regional Clock Network Connectivity RCLK0 Table 2-27. Global and Regional Clock Connections from Left Side Clock Pins and Fast PLL Outputs (Part 2 of 3) Drivers from internal logic v RCLKDRV0 v v RCLKDRV1 v v RCLKDRV2 v v RCLKDRV3 v RCLKDRV4 v v v RCLKDRV5 v v RCLKDRV6 v v RCLKDRV7 v PLL 1 outputs c0 v v c1 v v v v v c2 v v c3 v v v v v v v v v v v v v v v v v v v PLL 2 outputs c0 v v c1 v v v c2 v v c3 v v c0 v v c1 v v v v v v v v v v v v v PLL 7 outputs c2 v v v v v v v v v v c3 Altera Corporation October 2007 v v 2-103 Stratix II GX Device Handbook, Volume 1 PLLs and Clock Networks RCLK7 RCLK6 v RCLK5 v RCLK4 c1 RCLK3 v RCLK2 v RCLK1 CLK3 c0 RCLK0 CLK2 CLK1 Left Side Global and Regional Clock Network Connectivity CLK0 Table 2-27. Global and Regional Clock Connections from Left Side Clock Pins and Fast PLL Outputs (Part 3 of 3) PLL 8 outputs c2 v v c3 v v 2-104 Stratix II GX Device Handbook, Volume 1 v v v v v v v v Altera Corporation October 2007 Stratix II GX Architecture Figure 2-73 shows the global and regional clocking from enhanced PLL outputs and top and bottom CLK pins. Figure 2-73. Global and Regional Clock Connections from Top and Bottom Clock Pins and Enhanced PLL Outputs Notes (1), (2) CLK15 CLK13 CLK12 (2) (2) PLL5_FB CLK14 PLL11_FB PLL 11 PLL 5 c0 c1 c2 c3 c4 c5 c0 c1 c2 c3 c4 c5 PLL5_OUT[2..0]p PLL5_OUT[2..0]n RCLK31 RCLK30 RCLK29 RCLK28 PLL11_OUT[2..0]p PLL11_OUT[2..0]n Regional Clocks RCLK27 RCLK26 RCLK25 RCLK24 G15 G14 G13 G12 Global Clocks Regional Clocks G4 G5 G6 G7 RCLK8 RCLK9 RCLK10 RCLK11 RCLK12 RCLK13 RCLK14 RCLK15 PLL6_OUT[2..0]p PLL6_OUT[2..0]n PLL12_OUT[2..0]p PLL12_OUT[2..0]n c0 c1 c2 c3 c4 c5 c0 c1 c2 c3 c4 c5 PLL 12 PLL 6 PLL12_FB (2) CLK4 CLK6 CLK5 CLK7 PLL6_FB (2) Notes to Figure 2-73: (1) (2) EP2SGX30C/D and EP2SGX60C/D devices only have two enhanced PLLs (5 and 6), but the connectivity from these two PLLs to the global and regional clock networks remains the same as shown. If the design uses the feedback input, you will lose one (or two, if FBIN is differential) external clock output pin. Altera Corporation October 2007 2-105 Stratix II GX Device Handbook, Volume 1 PLLs and Clock Networks The connections to the global and regional clocks from the top clock pins and enhanced PLL outputs are shown in Table 2-28. The connections to the clocks from the bottom clock pins are shown in Table 2-29. CLK14p v v v CLK15p v v v RCLK31 v RCLK30 v RCLK29 v RCLK28 CLK13p RCLK27 v RCLK26 v RCLK25 CLK13 v CLK15 CLK12 CLK12p CLK14 DLLCLK Top Side Global and Regional Clock Network Connectivity RCLK24 Table 2-28. Global and Regional Clock Connections from Top Clock Pins and Enhanced PLL Outputs (Part 1 of 2) Clock pins v v v CLK12n v v v v v v CLK13n v v v v CLK14n v v v v CLK15n v v v Drivers from internal logic v GCLKDRV0 v GCLKDRV1 v GCLKDRV2 v GCLKDRV3 v RCLKDRV0 v v RCLKDRV1 v v RCLKDRV2 v v RCLKDRV3 v RCLKDRV4 v v v RCLKDRV5 v v RCLKDRV6 v v RCLKDRV7 v Enhanced PLL5 outputs c0 v v v c1 v v v 2-106 Stratix II GX Device Handbook, Volume 1 v v v v Altera Corporation October 2007 Stratix II GX Architecture v c4 v c5 v v v v v v RCLK31 v v RCLK30 v RCLK29 c3 RCLK28 v RCLK27 v RCLK26 v RCLK25 CLK15 c2 RCLK24 CLK14 CLK13 CLK12 Top Side Global and Regional Clock Network Connectivity DLLCLK Table 2-28. Global and Regional Clock Connections from Top Clock Pins and Enhanced PLL Outputs (Part 2 of 2) v v v v v v Enhanced PLL 11 outputs c0 v v c1 v v v v v c2 v v c3 v v v v v v c4 v v v c5 v v v v v v v v v v v RCLK15 v CLK7p RCLK14 v RCLK13 v RCLK12 v CLK6p RCLK11 v RCLK10 v RCLK9 CLK5 v CLK5p CLK7 CLK4 CLK4p CLK6 DLLCLK Bottom Side Global and Regional Clock Network Connectivity RCLK8 Table 2-29. Global and Regional Clock Connections from Bottom Clock Pins and Enhanced PLL Outputs (Part 1 of 2) Clock pins CLK4n v v v v v v v v v CLK5n v v v v CLK7n v v v CLK6n v v v v Drivers from internal logic GCLKDRV0 GCLKDRV1 Altera Corporation October 2007 v v 2-107 Stratix II GX Device Handbook, Volume 1 PLLs and Clock Networks RCLK15 RCLK14 RCLK13 RCLK12 RCLK11 RCLK10 RCLK9 RCLK8 CLK7 CLK6 CLK5 CLK4 Bottom Side Global and Regional Clock Network Connectivity DLLCLK Table 2-29. Global and Regional Clock Connections from Bottom Clock Pins and Enhanced PLL Outputs (Part 2 of 2) v GCLKDRV2 v GCLKDRV3 v RCLKDRV0 v v RCLKDRV1 v v RCLKDRV2 v v RCLKDRV3 v RCLKDRV4 v v v RCLKDRV5 v v RCLKDRV6 v v RCLKDRV7 v Enhanced PLL 6 outputs c0 v v v v c1 v v v c2 v v v c3 v v v c4 v c5 v v v v v v v v v v v v v v v v Enhanced PLL 12 outputs c0 v v c1 v v v v c2 v v c3 v v c4 c5 2-108 Stratix II GX Device Handbook, Volume 1 v v v v v v v v v v v v v v Altera Corporation October 2007 Stratix II GX Architecture Enhanced PLLs Stratix II GX devices contain up to four enhanced PLLs with advanced clock management features. These features include support for external clock feedback mode, spread-spectrum clocking, and counter cascading. Figure 2-74 shows a diagram of the enhanced PLL. Figure 2-74. Stratix II GX Enhanced PLL Note (1) From Adjacent PLL VCO Phase Selection Selectable at Each PLL Output Port Clock Switchover Circuitry Post-Scale Counters Spread Spectrum Phase Frequency Detector /c0 INCLK[3..0] /c1 4 /n PFD Charge Pump Loop Filter 8 VCO Global or Regional Clock 4 Global Clocks 8 Regional Clocks /c2 6 /c3 6 /m I/O Buffers (3) /c4 (2) /c5 Lock Detect & Filter FBIN to I/O or general routing VCO Phase Selection Affecting All Outputs Shaded Portions of the PLL are Reconfigurable Notes to Figure 2-74: (1) (2) (3) (4) Each clock source can come from any of the four clock pins that are physically located on the same side of the device as the PLL. If the feedback input is used, you will lose one (or two, if FBIN is differential) external clock output pin. Each enhanced PLL has three differential external clock outputs or six single-ended external clock outputs. The global or regional clock input can be driven by an output from another PLL, a pin-driven dedicated global or regional clock, or through a clock control block provided the clock control block is fed by an output from another PLL or a pin-driven dedicated global or regional clock. An internally generated global signal cannot drive the PLL. Fast PLLs Stratix II GX devices contain up to four fast PLLs with high-speed serial interfacing ability. The fast PLLs offer high-speed outputs to manage the high-speed differential I/O interfaces. Figure 2-75 shows a diagram of the fast PLL. Altera Corporation October 2007 2-109 Stratix II GX Device Handbook, Volume 1 I/O Structure Figure 2-75. Stratix II GX Device Fast PLL Clock Switchover Circuitry (4) Global or regional clock (1) Clock Input VCO Phase Selection Selectable at each PLL Output Port Phase Frequency Detector Post-Scale Counters diffioclk0 (2) load_en0 (3) /c0 /n 4 PFD Charge Pump Loop Filter VCO /k 8 load_en1 (3) /c1 diffioclk1 (2) 4 Global clocks /c2 4 Global or regional clock (1) 8 Regional clocks /c3 /m 8 to DPA block Shaded Portions of the PLL are Reconfigurable Notes to Figure 2-75: (1) (2) (3) (4) The global or regional clock input can be driven by an output from another PLL, a pin-driven dedicated global or regional clock, or through a clock control block provided the clock control block is fed by an output from another PLL or a pin-driven dedicated global or regional clock. An internally generated global signal cannot drive the PLL. In high-speed differential I/O support mode, this high-speed PLL clock feeds the serializer/deserializer (SERDES) circuitry. Stratix II GX devices only support one rate of data transfer per fast PLL in high-speed differential I/O support mode. This signal is a differential I/O SERDES control signal. Stratix II GX fast PLLs only support manual clock switchover. f I/O Structure Refer to the PLLs in Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II GX Device Handbook for more information on enhanced and fast PLLs. Refer to "High-Speed Differential I/O with DPA Support" on page 2-136 for more information on high-speed differential I/O support. The Stratix II GX IOEs provide many features, including: Dedicated differential and single-ended I/O buffers 3.3-V, 64-bit, 66-MHz PCI compliance 3.3-V, 64-bit, 133-MHz PCI-X 1.0 compliance Joint Test Action Group (JTAG) boundary-scan test (BST) support On-chip driver series termination On-chip termination for differential standards Programmable pull-up during configuration Output drive strength control Tri-state buffers Bus-hold circuitry Programmable pull-up resistors Programmable input and output delays 2-110 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Open-drain outputs DQ and DQS I/O pins Double data rate (DDR) registers The IOE in Stratix II GX devices contains a bidirectional I/O buffer, six registers, and a latch for a complete embedded bidirectional single data rate or DDR transfer. Figure 2-76 shows the Stratix II GX IOE structure. The IOE contains two input registers (plus a latch), two output registers, and two output enable registers. You can use both input registers and the latch to capture DDR input and both output registers to drive DDR outputs. Additionally, you can use the output enable (OE) register for fast clock-to-output enable timing. The negative edge-clocked OE register is used for DDR SDRAM interfacing. The Quartus II software automatically duplicates a single OE register that controls multiple output or bidirectional pins. Altera Corporation October 2007 2-111 Stratix II GX Device Handbook, Volume 1 I/O Structure Figure 2-76. Stratix II GX IOE Structure Logic Array OE Register OE D Q OE Register D Q Output Register Output A D Q CLK Output Register Output B D Q Input Register D Q Input A Input B Input Register D Q Input Latch D Q ENA The IOEs are located in I/O blocks around the periphery of the Stratix II GX device. There are up to four IOEs per row I/O block and four IOEs per column I/O block. The row I/O blocks drive row, column, or direct link interconnects. The column I/O blocks drive column interconnects. 2-112 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figure 2-77 shows how a row I/O block connects to the logic array. Figure 2-77. Row I/O Block Connection to the Interconnect R4 & R24 Interconnects C4 Interconnect I/O Block Local Interconnect 32 Data & Control Signals from Logic Array (1) 32 LAB Horizontal I/O Block io_dataina[3..0] io_datainb[3..0] Direct Link Interconnect to Adjacent LAB Direct Link Interconnect to Adjacent LAB io_clk[7:0] LAB Local Interconnect Horizontal I/O Block Contains up to Four IOEs Note to Figure 2-77: (1) The 32 data and control signals consist of eight data out lines: four lines each for DDR applications io_dataouta[3..0] and io_dataoutb[3..0], four output enables io_oe[3..0], four input clock enables io_ce_in[3..0], four output clock enables io_ce_out[3..0], four clocks io_clk[3..0], four asynchronous clear and preset signals io_aclr/apreset[3..0], and four synchronous clear and preset signals io_sclr/spreset[3..0]. Altera Corporation October 2007 2-113 Stratix II GX Device Handbook, Volume 1 I/O Structure Figure 2-78 shows how a column I/O block connects to the logic array. Figure 2-78. Column I/O Block Connection to the Interconnect 32 Data & Control Signals from Logic Array (1) Vertical I/O Block Contains up to Four IOEs Vertical I/O Block 32 IO_dataina[3..0] IO_datainb[3..0] io_clk[7..0] I/O Block Local Interconnect R4 & R24 Interconnects LAB LAB Local Interconnect LAB LAB C4 & C16 Interconnects Note to Figure 2-78: (1) The 32 data and control signals consist of eight data out lines: four lines each for DDR applications io_dataouta[3..0] and io_dataoutb[3..0], four output enables io_oe[3..0], four input clock enables io_ce_in[3..0], four output clock enables io_ce_out[3..0], four clocks io_clk[3..0], four asynchronous clear and preset signals io_aclr/apreset[3..0], and four synchronous clear and preset signals io_sclr/spreset[3..0]. 2-114 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture There are 32 control and data signals that feed each row or column I/O block. These control and data signals are driven from the logic array. The row or column IOE clocks, io_clk[7..0], provide a dedicated routing resource for low-skew, high-speed clocks. I/O clocks are generated from global or regional clocks. Refer to "PLLs and Clock Networks" on page 2-89 for more information. Figure 2-79 illustrates the signal paths through the I/O block. Figure 2-79. Signal Path Through the I/O Block Row or Column io_clk[7..0] To Logic Array To Other IOEs io_dataina io_datainb oe ce_in io_oe ce_out io_ce_in io_ce_out Control Signal Selection aclr/apreset IOE sclr/spreset io_aclr From Logic Array clk_in io_sclr clk_out io_clk io_dataouta io_dataoutb Each IOE contains its own control signal selection for the following control signals: oe, ce_in, ce_out, aclr/apreset, sclr/spreset, clk_in, and clk_out. Figure 2-80 illustrates the control signal selection. Altera Corporation October 2007 2-115 Stratix II GX Device Handbook, Volume 1 I/O Structure Figure 2-80. Control Signal Selection per IOE Note (1) Dedicated I/O Clock [7..0] Local Interconnect io_oe Local Interconnect io_sclr Local Interconnect io_aclr Local Interconnect io_ce_out Local Interconnect io_ce_in Local Interconnect io_clk ce_out clk_out clk_in ce_in sclr/spreset aclr/apreset oe Note to Figure 2-80: (1) Control signals ce_in, ce_out, aclr/apreset, sclr/spreset, and oe can be global signals even though their control selection multiplexers are not directly fed by the ioe_clk[7..0] signals. The ioe_clk signals can drive the I/O local interconnect, which then drives the control selection multiplexers. In normal bidirectional operation, you can use the input register for input data requiring fast setup times. The input register can have its own clock input and clock enable separate from the OE and output registers. The output register can be used for data requiring fast clock-to-output performance. You can use the OE register for fast clock-to-output enable timing. The OE and output register share the same clock source and the same clock enable source from local interconnect in the associated LAB, dedicated I/O clocks, and the column and row interconnects. Figure 2-81 shows the IOE in bidirectional configuration. 2-116 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figure 2-81. Stratix II GX IOE in Bidirectional I/O Configuration Note (1) ioe_clk[7..0] Column, Row, or Local Interconnect oe OE Register D Q clkout ENA CLRN/PRN ce_out OE Register tCO Delay VCCIO PCI Clamp (2) VCCIO Programmable Pull-Up Resistor aclr/apreset Chip-Wide Reset Output Register D sclr/spreset Q Output Pin Delay On-Chip Termination Drive Strength Control ENA Open-Drain Output CLRN/PRN Input Pin to Logic Array Delay Input Register clkin ce_in D Input Pin to Input Register Delay Bus-Hold Circuit Q ENA CLRN/PRN Notes to Figure 2-81: (1) (2) All input signals to the IOE can be inverted at the IOE. The optional PCI clamp is only available on column I/O pins. The Stratix II GX device IOE includes programmable delays that can be activated to ensure input IOE register-to-logic array register transfers, input pin-to-logic array register transfers, or output IOE register-to-pin transfers. Altera Corporation October 2007 2-117 Stratix II GX Device Handbook, Volume 1 I/O Structure A path in which a pin directly drives a register can require the delay to ensure zero hold time, whereas a path in which a pin drives a register through combinational logic may not require the delay. Programmable delays exist for decreasing input-pin-to-logic-array and IOE input register delays. The Quartus II Compiler can program these delays to automatically minimize setup time while providing a zero hold time. Programmable delays can increase the register-to-pin delays for output and/or output enable registers. Programmable delays are no longer required to ensure zero hold times for logic array register-to-IOE register transfers. The Quartus II Compiler can create the zero hold time for these transfers. Table 2-30 shows the programmable delays for Stratix II GX devices. Table 2-30. Stratix II GX Programmable Delay Chain Programmable Delays Quartus II Logic Option Input pin to logic array delay Input delay from pin to internal cells Input pin to input register delay Input delay from pin to input register Output pin delay Delay from output register to output pin Output enable register tCO delay Delay to output enable pin The IOE registers in Stratix II GX devices share the same source for clear or preset. You can program preset or clear for each individual IOE. You can also program the registers to power up high or low after configuration is complete. If programmed to power up low, an asynchronous clear can control the registers. If programmed to power up high, an asynchronous preset can control the registers. This feature prevents the inadvertent activation of another device's active-low input upon power-up. If one register in an IOE uses a preset or clear signal, all registers in the IOE must use that same signal if they require preset or clear. Additionally, a synchronous reset signal is available for the IOE registers. Double Data Rate I/O Pins Stratix II GX devices have six registers in the IOE, which support DDR interfacing by clocking data on both positive and negative clock edges. The IOEs in Stratix II GX devices support DDR inputs, DDR outputs, and bidirectional DDR modes. When using the IOE for DDR inputs, the two input registers clock double rate input data on alternating edges. An input latch is also used in the IOE for DDR input acquisition. The latch holds the data that is present during the clock high times, allowing both bits of data to be synchronous with the same clock edge (either rising or falling). Figure 2-82 shows an IOE configured for DDR input. Figure 2-83 shows the DDR input timing diagram. 2-118 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figure 2-82. Stratix II GX IOE in DDR Input I/O Configuration Note (1) ioe_clk[7..0] Column, Row, or Local Interconnect VCCIO To DQS Logic Block (3) DQS Local Bus (2) PCI Clamp (4) VCCIO Programmable Pull-Up Resistor On-Chip Termination Input Pin to Input RegisterDelay sclr/spreset Input Register D Q clkin ce_in ENA CLRN/PRN Bus-Hold Circuit aclr/apreset Chip-Wide Reset Latch Input Register D Q ENA CLRN/PRN D Q ENA CLRN/PRN Notes to Figure 2-82: (1) (2) (3) (4) All input signals to the IOE can be inverted at the IOE. This signal connection is only allowed on dedicated DQ function pins. This signal is for dedicated DQS function pins only. The optional PCI clamp is only available on column I/O pins. Altera Corporation October 2007 2-119 Stratix II GX Device Handbook, Volume 1 I/O Structure Figure 2-83. Input Timing Diagram in DDR Mode Data at input pin B0 A0 B1 A1 B2 A2 B3 A3 B4 CLK A0 A1 A2 A3 B0 B1 B2 B3 Input To Logic Array When using the IOE for DDR outputs, the two output registers are configured to clock two data paths from ALMs on rising clock edges. These output registers are multiplexed by the clock to drive the output pin at a x2 rate. One output register clocks the first bit out on the clock high time, while the other output register clocks the second bit out on the clock low time. Figure 2-84 shows the IOE configured for DDR output. Figure 2-85 shows the DDR output timing diagram. 2-120 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figure 2-84. Stratix II GX IOE in DDR Output I/O Configuration Notes (1), (2) ioe_clk[7..0] Column, Row, or Local Interconnect oe OE Register D Q clkout ENA CLRN/PRN OE Register tCO Delay ce_out aclr/apreset VCCIO PCI Clamp (3) Chip-Wide Reset OE Register D VCCIO Q sclr/spreset ENA CLRN/PRN Used for DDR, DDR2 SDRAM Programmable Pull-Up Resistor Output Register D Q ENA CLRN/PRN Output Register D Output Pin Delay On-Chip Termination clk Drive Strength Control Open-Drain Output Q ENA CLRN/PRN Bus-Hold Circuit Notes to Figure 2-84: (1) (2) (3) All input signals to the IOE can be inverted at the IOE. The tri-state buffer is active low. The DDIO megafunction represents the tri-state buffer as active-high with an inverter at the OE register data port. The optional PCI clamp is only available on column I/O pins. Altera Corporation October 2007 2-121 Stratix II GX Device Handbook, Volume 1 I/O Structure Figure 2-85. Output Timing Diagram in DDR Mode CLK A1 A2 A3 A4 B1 B2 B3 B4 From Internal Registers B1 DDR output A1 B2 A2 B3 A3 B4 A4 The Stratix II GX IOE operates in bidirectional DDR mode by combining the DDR input and DDR output configurations. The negative-edge-clocked OE register holds the OE signal inactive until the falling edge of the clock to meet DDR SDRAM timing requirements. External RAM Interfacing In addition to the six I/O registers in each IOE, Stratix II GX devices also have dedicated phase-shift circuitry for interfacing with external memory interfaces, including DDR and DDR2 SDRAM, QDR II SRAM, RLDRAM II, and SDR SDRAM. In every Stratix II GX device, the I/O banks at the top (banks 3 and 4) and bottom (banks 7 and 8) of the device support DQ and DQS signals with DQ bus modes of x4, x8/x9, x16/x18, or x32/x36. Table 2-31 shows the number of DQ and DQS buses that are supported per device. Table 2-31. DQS and DQ Bus Mode Support Device EP2SGX30 EP2SGX60 Number of x4 Groups Number of x8/x9 Groups Number of x16/x18 Groups Number of x32/x36 Groups 780-pin FineLine BGA 18 8 4 0 Package 780-pin FineLine BGA 18 8 4 0 1,152-pin FineLine BGA 36 18 8 4 1,152-pin FineLine BGA 36 18 8 4 1,508-pin FineLine BGA 36 18 8 4 EP2SGX130 1,508-pin FineLine BGA 36 18 8 4 EP2SGX90 2-122 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture A compensated delay element on each DQS pin automatically aligns input DQS synchronization signals with the data window of their corresponding DQ data signals. The DQS signals drive a local DQS bus in the top and bottom I/O banks. This DQS bus is an additional resource to the I/O clocks and is used to clock DQ input registers with the DQS signal. The Stratix II GX device has two phase-shifting reference circuits, one on the top and one on the bottom of the device. The circuit on the top controls the compensated delay elements for all DQS pins on the top. The circuit on the bottom controls the compensated delay elements for all DQS pins on the bottom. Each phase-shifting reference circuit is driven by a system reference clock, which must have the same frequency as the DQS signal. Clock pins CLK[15..12]p feed the phase circuitry on the top of the device and clock pins CLK[7..4]p feed the phase circuitry on the bottom of the device. In addition, PLL clock outputs can also feed the phase-shifting reference circuits. Figure 2-86 shows the phase-shift reference circuit control of each DQS delay shift on the top of the device. This same circuit is duplicated on the bottom of the device. Figure 2-86. DQS Phase-Shift Circuitry Notes (1), (2) From PLL 5 (4) DQSn Pin DQS Pin DQSn Pin DQS Pin t t t t to IOE to IOE to IOE to IOE CLK[15..12]p (3) DQS Phase-Shift Circuitry DQS Pin DQSn Pin DQS Pin DQSn Pin t t t t to IOE to IOE to IOE to IOE DQS Logic Blocks Notes to Figure 2-86: (1) (2) (3) (4) There are up to 18 pairs of DQS and DQSn pins available on the top or the bottom of the Stratix II GX device. There are up to 10 pairs on the right side and 8 pairs on the left side of the DQS phase-shift circuitry. The "t" module represents the DQS logic block. Clock pins CLK[15..12]p feed the phase-shift circuitry on the top of the device and clock pins CLK[7..4]p feed the phase circuitry on the bottom of the device. You can also use a PLL clock output as a reference clock to the phaseshift circuitry. You can only use PLL 5 to feed the DQS phase-shift circuitry on the top of the device and PLL 6 to feed the DQS phase-shift circuitry on the bottom of the device. Altera Corporation October 2007 2-123 Stratix II GX Device Handbook, Volume 1 I/O Structure These dedicated circuits combined, with enhanced PLL clocking and phase-shift ability, provide a complete hardware solution for interfacing to high-speed memory. f For more information on external memory interfaces, refer to the External Memory Interfaces in Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II GX Device Handbook. Programmable Drive Strength The output buffer for each Stratix II GX device I/O pin has a programmable drive strength control for certain I/O standards. The LVTTL, LVCMOS, SSTL, and HSTL standards have several levels of drive strength that you can control. The default setting used in the Quartus II software is the maximum current strength setting that is used to achieve maximum I/O performance. For all I/O standards, the minimum setting is the lowest drive strength that guarantees the IOH/IOL of the standard. Using minimum settings provides signal slew rate control to reduce system noise and signal overshoot. 2-124 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Table 2-32 shows the possible settings for the I/O standards with drive strength control. Table 2-32. Programmable Drive Strength Note (1) IOH / IOL Current Strength Setting (mA) for Column I/O Pins IOH / IOL Current Strength Setting (mA) for Row I/O Pins 3.3-V LVTTL 24, 20, 16, 12, 8, 4 12, 8, 4 3.3-V LVCMOS I/O Standard 24, 20, 16, 12, 8, 4 8, 4 2.5-V LVTTL/LVCMOS 16, 12, 8, 4 12, 8, 4 1.8-V LVTTL/LVCMOS 12, 10, 8, 6, 4, 2 8, 6, 4, 2 8, 6, 4, 2 4, 2 SSTL-2 Class I 12, 8 12, 8 SSTL-2 Class II 24, 20, 16 16 SSTL-18 Class I 12, 10, 8, 6, 4 10, 8, 6, 4 SSTL-18 Class II 20, 18, 16, 8 -- HSTL-18 Class I 12, 10, 8, 6, 4 12, 10, 8, 6, 4 HSTL-18 Class II 20, 18, 16 -- HSTL-15 Class I 12, 10, 8, 6, 4 8, 6, 4 HSTL-15 Class II 20, 18, 16 -- 1.5-V LVCMOS Note to Table 2-32: (1) The Quartus II software default current setting is the maximum setting for each I/O standard. Open-Drain Output Stratix II GX devices provide an optional open-drain (equivalent to an open collector) output for each I/O pin. This open-drain output enables the device to provide system-level control signals (for example, interrupt and write enable signals) that can be asserted by any of several devices. Bus Hold Each Stratix II GX device I/O pin provides an optional bus-hold feature. The bus-hold circuitry can hold the signal on an I/O pin at its last-driven state. Since the bus-hold feature holds the last-driven state of the pin until the next input signal is present, an external pull-up or pull-down resistor is not needed to hold a signal level when the bus is tri-stated. Altera Corporation October 2007 2-125 Stratix II GX Device Handbook, Volume 1 I/O Structure The bus-hold circuitry also pulls undriven pins away from the input threshold voltage where noise can cause unintended high-frequency switching. You can select this feature individually for each I/O pin. The bus-hold output drives no higher than VCCIO to prevent overdriving signals. If the bus-hold feature is enabled, the programmable pull-up option cannot be used. Disable the bus-hold feature when the I/O pin has been configured for differential signals. The bus-hold circuitry uses a resistor with a nominal resistance (RBH) of approximately 7 k to pull the signal level to the last-driven state. f Refer to the DC & Switching Characteristics chapter in volume 1 of the Stratix II GX Device Handbook for the specific sustaining current driven through this resistor and overdrive current used to identify the next-driven input level. This information is provided for each VCCIO voltage level. The bus-hold circuitry is active only after configuration. When going into user mode, the bus-hold circuit captures the value on the pin present at the end of configuration. Programmable Pull-Up Resistor Each Stratix II GX device I/O pin provides an optional programmable pull-up resistor during user mode. If you enable this feature for an I/O pin, the pull-up resistor (typically 25 k ) holds the output to the VCCIO level of the output pin's bank. Programmable pull-up resistors are only supported on user I/O pins and are not supported on dedicated configuration pins, JTAG pins, or dedicated clock pins. Advanced I/O Standard Support The Stratix II GX device IOEs support the following I/O standards: 3.3-V LVTTL/LVCMOS 2.5-V LVTTL/LVCMOS 1.8-V LVTTL/LVCMOS 1.5-V LVCMOS 3.3-V PCI 3.3-V PCI-X mode 1 LVDS LVPECL (on input and output clocks only) Differential 1.5-V HSTL class I and II Differential 1.8-V HSTL class I and II Differential SSTL-18 class I and II 2-126 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Differential SSTL-2 class I and II 1.2-V HSTL class I and II 1.5-V HSTL class I and II 1.8-V HSTL class I and II SSTL-2 class I and II SSTL-18 class I and II Table 2-33 describes the I/O standards supported by Stratix II GX devices. Table 2-33. Stratix II GX Supported I/O Standards I/O Standard Type Output Supply Board Termination Input Reference Voltage (VREF) (V) Voltage (VCCIO) (V) Voltage (VTT) (V) LVTTL Single-ended -- 3.3 -- LVCMOS Single-ended -- 3.3 -- 2.5 V Single-ended -- 2.5 -- 1.8 V Single-ended -- 1.8 -- 1.5-V LVCMOS Single-ended -- 1.5 -- 3.3-V PCI Single-ended -- 3.3 -- 3.3-V PCI-X mode 1 Single-ended -- 3.3 -- LVDS Differential -- 2.5 (3) -- LVPECL (1) Differential -- 3.3 -- HyperTransport technology Differential -- 2.5 (3) -- Differential 1.5-V HSTL class I and II (2) Differential 0.75 1.5 0.75 Differential 1.8-V HSTL class I and II (2) Differential 0.90 1.8 0.90 Differential SSTL-18 class I Differential and II (2) 0.90 1.8 0.90 Differential SSTL-2 class I and II (2) 1.25 2.5 1.25 Differential 1.2-V HSTL(4) Voltage-referenced 0.6 1.2 0.6 1.5-V HSTL class I and II Voltage-referenced 0.75 1.5 0.75 1.8-V HSTL class I and II Voltage-referenced 0.9 1.8 0.9 SSTL-18 class I and II Voltage-referenced 0.90 1.8 0.90 Altera Corporation October 2007 2-127 Stratix II GX Device Handbook, Volume 1 I/O Structure Table 2-33. Stratix II GX Supported I/O Standards I/O Standard SSTL-2 class I and II Type Voltage-referenced Input Reference Output Supply Board Termination Voltage (VREF) (V) Voltage (VCCIO) (V) Voltage (VTT) (V) 1.25 2.5 1.25 Notes to Table 2-33: (1) (2) (3) (4) This I/O standard is only available on input and output column clock pins. This I/O standard is only available on input clock pins and DQS pins in I/O banks 3, 4, 7, and 8, and output clock pins in I/O banks 9,10, 11, and 12. VCCIO is 3.3 V when using this I/O standard in input and output column clock pins (in I/O banks 3, 4, 7, 8, 9, 10, 11, and 12). 1.2-V HSTL is only supported in I/O banks 4, 7, and 8. f For more information on I/O standards supported by Stratix II GX I/O banks, refer to the Selectable I/O Standards in Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II GX Device Handbook. Stratix II GX devices contain six I/O banks and four enhanced PLL external clock output banks, as shown in Figure 2-87. The two I/O banks on the left of the device contain circuitry to support source-synchronous, high-speed differential I/O for LVDS inputs and outputs. These banks support all Stratix II GX I/O standards except PCI or PCI-X I/O pins, and SSTL-18 class II and HSTL outputs. The top and bottom I/O banks support all single-ended I/O standards. Additionally, enhanced PLL external clock output banks allow clock output capabilities such as differential support for SSTL and HSTL. 2-128 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figure 2-87. Stratix II GX I/O Banks DQS x8 PLL7 DQS x8 DQS x8 DQS x8 VREF0B3 VREF1B3 VREF2B3 VREF3B3 VREF4B3 Bank 2 VREF0B2 VREF1B2 VREF2B2 VREF3B2 VREF4B2 Bank 3 VREF3B1 VREF4B1 Bank 1 VREF2B1 PLL5 DQS x8 DQS x8 DQS x8 DQS x8 DQS x8 VREF0B4 VREF1B4 VREF2B4 VREF3B4 VREF4B4 Bank 4 Bank 9 This I/O bank supports LVDS and LVPECL standards for input clock operations. Differential HSTL and differential SSTL standards are supported for both input and output operations. (3) I/O Banks 3, 4, 9, and 11 support all single-ended I/O standards for both input and output operations. All differential I/O standards are supported for both input and output operations at I/O banks 9 and 11. This I/O bank supports LVDS and LVPECL standards for input clock operation. Differential HSTL and differential SSTL standards are supported for both input and output operations. (3) I/O banks 1 & 2 support LVTTL, LVCMOS, 2.5 V, 1.8 V, 1.5 V, SSTL-2, SSTL-18 class I, LVDS, pseudo-differential SSTL-2 and pseudo-differential SSTL-18 class I standards for both input and output operations. HSTL-18 class II, SSTL-18 class II, pseudo-differential HSTL and pseudo-differential SSTL-18 class II standards are only supported for input operations. (4) PLL2 VREF0B1 VREF1B1 PLL11 Bank 11 PLL1 VREF4B8 VREF3B8 VREF2B8 VREF1B8 VREF0B8 DQS x8 DQS x8 DQS x8 DQS x8 Bank 12 Bank 10 PLL12 PLL6 Transmitter: Bank 13 Receiver: Bank 13 REFCLK: Bank 13 Transmitter: Bank 14 Receiver: Bank 14 REFCLK: Bank 14 I/O banks 7, 8, 10 and 12 support all single-ended I/O standards for both input and output operations. All differential I/O standards are supported for both input and output operations at I/O banks 10 and 12. This I/O bank supports LVDS This I/O bank supports LVDS and LVPECL standards for input clock operation. and LVPECL standards for input clock Differential HSTL and differential operation. Differential HSTL and differential SSTL standards are supported SSTL standards are supported for both input and output operations. (3) for both input and output operations. (3) Bank 8 PLL8 Notes (1), (2) Transmitter: Bank 15 Receiver: Bank 15 REFCLK: Bank 15 Bank 7 VREF4B7 VREF3B7 VREF2B7 VREF1B7 VREF0B7 DQS x8 DQS x8 DQS x8 DQS x8 DQS x8 Notes to Figure 2-87: (1) (2) (3) (4) Figure 2-87 is a top view of the silicon die that corresponds to a reverse view for flip-chip packages. It is a graphical representation only. Depending on the size of the device, different device members have different numbers of VREF groups. Refer to the pin list and the Quartus II software for exact locations. Banks 9 through 12 are enhanced PLL external clock output banks. Horizontal I/O banks feature SERDES and DPA circuitry for high-speed differential I/O standards. See the High-Speed Differential I/O Interfaces with DPA in Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II Device Handbook 2 for more information on differential I/O standards. Each I/O bank has its own VCCIO pins. A single device can support 1.5-, 1.8-, 2.5-, and 3.3-V interfaces; each bank can support a different VCCIO level independently. Each bank also has dedicated VREF pins to support the voltage-referenced standards (such as SSTL-2). Each I/O bank can support multiple standards with the same VCCIO for input and output pins. Each bank can support one VREF voltage level. For example, when VCCIO is 3.3 V, a bank can support LVTTL, LVCMOS, and 3.3-V PCI for inputs and outputs. Altera Corporation October 2007 2-129 Stratix II GX Device Handbook, Volume 1 I/O Structure On-Chip Termination Stratix II GX devices provide differential (for the LVDS technology I/O standard) and series on-chip termination to reduce reflections and maintain signal integrity. On-chip termination simplifies board design by minimizing the number of external termination resistors required. Termination can be placed inside the package, eliminating small stubs that can still lead to reflections. Stratix II GX devices provide four types of termination: Differential termination (RD) Series termination (RS) without calibration Series termination (RS) with calibration Parallel termination (RT) with calibration Table 2-34 shows the Stratix II GX on-chip termination support per I/O bank. Table 2-34. On-Chip Termination Support by I/O Banks (Part 1 of 2) On-Chip Termination Support Series termination without calibration Top and Bottom Banks (3, 4, 7, 8) Left Bank (1, 2) 3.3-V LVTTL v v 3.3-V LVCMOS v v 2.5-V LVTTL v v 2.5-V LVCMOS v v 1.8-V LVTTL v v 1.8-V LVCMOS v v 1.5-V LVTTL v v 1.5-V LVCMOS v v SSTL-2 class I and II v v SSTL-18 class I v v SSTL-18 class II v -- 1.8-V HSTL class I v v 1.8-V HSTL class II v -- 1.5-V HSTL class I v v 1.2-V HSTL v -- I/O Standard Support 2-130 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Table 2-34. On-Chip Termination Support by I/O Banks (Part 2 of 2) On-Chip Termination Support Series termination with calibration Differential termination (1) Top and Bottom Banks (3, 4, 7, 8) Left Bank (1, 2) 3.3-V LVTTL v -- 3.3-V LVCMOS v -- 2.5-V LVTTL v -- 2.5-V LVCMOS v -- 1.8-V LVTTL v -- 1.8-V LVCMOS v -- 1.5-V LVTTL v -- 1.5-V LVCMOS v -- SSTL-2 class I and II v -- SSTL-18 class I and II v -- 1.8-V HSTL class I v -- 1.8-V HSTL class II v -- 1.5-V HSTL class I v -- 1.2-V HSTL v -- LVDS -- v HyperTransport technology -- v I/O Standard Support Note to Table 2-34: (1) Clock pins CLK1 and CLK3, and pins FPLL[7..8]CLK do not support differential on-chip termination. Clock pins CLK0 and CLK2, do support differential on-chip termination. Clock pins in the top and bottom banks (CLK[4..7, 12..15]) do not support differential on-chip termination. Differential On-Chip Termination Stratix II GX devices support internal differential termination with a nominal resistance value of 100 for LVDS input receiver buffers. LVPECL input signals (supported on clock pins only) require an external termination resistor. Differential on-chip termination is supported across the full range of supported differential data rates, as shown in the High-Speed I/O Specifications section of the DC & Switching Characteristics chapter in volume 1 of the Stratix II GX Device Handbook. f Altera Corporation October 2007 For more information on differential on-chip termination, refer to the High-Speed Differential I/O Interfaces with DPA in Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II GX Device Handbook. 2-131 Stratix II GX Device Handbook, Volume 1 I/O Structure f For more information on tolerance specifications for differential on-chip termination, refer to the DC & Switching Characteristics chapter in volume 1 of the Stratix II GX Device Handbook. On-Chip Series Termination without Calibration Stratix II GX devices support driver impedance matching to provide the I/O driver with controlled output impedance that closely matches the impedance of the transmission line. As a result, reflections can be significantly reduced. Stratix II GX devices support on-chip series termination for single-ended I/O standards with typical RS values of 25 and 50 . Once matching impedance is selected, current drive strength is no longer selectable. Table 2-34 shows the list of output standards that support on-chip series termination without calibration. f For more information about series on-chip termination supported by Stratix II GX devices, refer to the Selectable I/O Standards in Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II GX Device Handbook. f For more information about tolerance specifications for on-chip termination without calibration, refer to the DC & Switching Characteristics chapter in volume 1 of the Stratix II GX Device Handbook. On-Chip Series Termination with Calibration Stratix II GX devices support on-chip series termination with calibration in column I/O pins in top and bottom banks. There is one calibration circuit for the top I/O banks and one circuit for the bottom I/O banks. Each on-chip series termination calibration circuit compares the total impedance of each I/O buffer to the external 25- or 50- resistors connected to the RUP and RDN pins, and dynamically enables or disables the transistors until they match. Calibration occurs at the end of device configuration. Once the calibration circuit finds the correct impedance, it powers down and stops changing the characteristics of the drivers. f For more information about series on-chip termination supported by Stratix II GX devices, refer to the Selectable I/O Standards in Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II GX Device Handbook. f For more information about tolerance specifications for on-chip termination with calibration, refer to the DC & Switching Characteristics chapter in volume 1 of the Stratix II GX Device Handbook. 2-132 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture On-Chip Parallel Termination with Calibration Stratix II GX devices support on-chip parallel termination with calibration for column I/O pins only. There is one calibration circuit for the top I/O banks and one circuit for the bottom I/O banks. Each on-chip parallel termination calibration circuit compares the total impedance of each I/O buffer to the external 50- resistors connected to the RUP and RDN pins and dynamically enables or disables the transistors until they match. Calibration occurs at the end of device configuration. Once the calibration circuit finds the correct impedance, it powers down and stops changing the characteristics of the drivers. 1 On-chip parallel termination with calibration is only supported for input pins. f For more information about on-chip termination supported by Stratix II devices, refer to the Selectable I/O Standards in Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II GX Device Handbook. f For more information about tolerance specifications for on-chip termination with calibration, refer to the DC & Switching Characteristics chapter in volume 1 of the Stratix II GX Device Handbook. MultiVolt I/O Interface The Stratix II GX architecture supports the MultiVolt I/O interface feature that allows Stratix II GX devices in all packages to interface with systems of different supply voltages. The Stratix II GX VCCINT pins must always be connected to a 1.2-V power supply. With a 1.2-V VCCINT level, input pins are 1.2-, 1.5-, 1.8-, 2.5-, and 3.3-V tolerant. The VCCIO pins can be connected to either a 1.2-, 1.5-, 1.8-, 2.5-, or 3.3-V power supply, depending on the output requirements. The output levels are compatible with systems of the same voltage as the power supply (for example, when VCCIO pins are connected to a 1.5-V power supply, the output levels are compatible with 1.5-V systems). The Stratix II GX VCCPD power pins must be connected to a 3.3-V power supply. These power pins are used to supply the pre-driver power to the output buffers, which increases the performance of the output pins. The VCCPD pins also power configuration input pins and JTAG input pins. Altera Corporation October 2007 2-133 Stratix II GX Device Handbook, Volume 1 I/O Structure Table 2-35 summarizes Stratix II GX MultiVolt I/O support. Table 2-35. Stratix II GX MultiVolt I/O Support Note (1) Input Signal (V) VCCIO (V) 1.2 Output Signal (V) 1.2 1.5 1.8 2.5 3.3 1.2 1.5 1.8 2.5 3.3 5.0 (4) v (2) v (2) v (2) v (2) v (4) -- -- -- -- v -- -- -- -- v -- -- -- 1.5 (4) v v v (2) v (2) v (3) 1.8 (4) v v v (2) v (2) v (3) v (3) -- 2.5 (4) -- -- v v v (3) v (3) v (3) v -- -- 3.3 (4) -- -- v v v (3) v (3) v (3) v (3) v v Notes to Table 2-35: (1) (2) (3) (4) To drive inputs higher than VCCIO but less than 4.0 V, disable the PCI clamping diode and select the Allow LVTTL and LVCMOS input levels to overdrive input buffer option in the Quartus II software. The pin current may be slightly higher than the default value. You must verify that the driving device's VO L maximum and VO H minimum voltages do not violate the applicable Stratix II GX VI L maximum and VI H minimum voltage specifications. Although VCCIO specifies the voltage necessary for the Stratix II GX device to drive out, a receiving device powered at a different level can still interface with the Stratix II GX device if it has inputs that tolerate the VCCIO value. Stratix II GX devices support 1.2-V HSTL. They do not support 1.2-V LVTTL and 1.2-V LVCMOS. The TDO and nCEO pins are powered by VCCIO of the bank that they reside. TDO is in I/O bank 4 and nCEO is in I/O bank 7. Ideally, the VCC supplies for the I/O buffers of any two connected pins are at the same voltage level. This may not always be possible depending on the VCCIO level of TDO and nCEO pins on master devices and the configuration voltage level chosen by VCCSEL on slave devices. Master and slave devices can be in any position in the chain. Master indicates that it is driving out TDO or nCEO to a slave device. For multi-device passive configuration schemes, the nCEO pin of the master device drives the nCE pin of the slave device. The VCCSEL pin on the slave device selects which input buffer is used for nCE. When VCCSEL is logic high, it selects the 1.8-V/1.5-V buffer powered by VCCIO. When VCCSEL is logic low, it selects the 3.3-V/2.5-V input buffer powered by VCCPD. The ideal case is to have the VCCIO of the nCEO bank in a master device match the VCCSEL settings for the nCE input buffer of the slave device it is connected to, but that may not be possible depending on the application. 2-134 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Table 2-36 contains board design recommendations to ensure that nCEO can successfully drive nCE for all power supply combinations. Table 2-36. Board Design Recommendations for nCEO and nCE Input Buffer Power nCE Input Buffer Power in I/O Bank 3 Stratix II GX nCEO VCCIO Voltage Level in I/O Bank 7 VC C I O = 3.3 V VC C I O = 2.5 V VC C I O = 1.8 V VC C I O = 1.5 V VC C I O = 1.2 V VCCSEL high (VC C I O Bank 3 = 1.5 V) v(1), (2) v (3), (4) v (5) v v VCCSEL high (VC C I O Bank 3 = 1.8 V) v (1), (2) v (3), (4) v v Level shifter required v v (4) v (6) Level shifter required Level shifter required VCCSEL low (nCE powered by VC C P D = 3.3 V) Notes to Table 2-36: (1) (2) (3) (4) (5) (6) Input buffer is 3.3-V tolerant. The nCEO output buffer meets VO H (MIN) = 2.4 V. Input buffer is 2.5-V tolerant. The nCEO output buffer meets VOH (MIN) = 2.0 V. Input buffer is 1.8-V tolerant. An external 250- pull-up resistor is not required, but recommended if signal levels on the board are not optimal. For JTAG chains, the TDO pin of the first device drives the TDI pin of the second device in the chain. The VCCSEL input on the JTAG input I/O cells (TCK, TMS, TDI, and TRST) is internally hardwired to GND selecting the 3.3-V/2.5-V input buffer powered by VCCPD. The ideal case is to have the VCCIO of the TDO bank from the first device match the VCCSEL settings for TDI on the second device, but that may not be possible depending on the application. Table 2-37 contains board design recommendations to ensure proper JTAG chain operation. Table 2-37. Supported TDO/TDI Voltage Combinations (Part 1 of 2) Device TDI Input Buffer Power Stratix II GX Always VC C P D (3.3 V) Altera Corporation October 2007 Stratix II GX TDO VC C I O Voltage Level in I/O Bank 4 VC C I O = 3.3 V VC C I O = 2.5 V v (1) v (2) VC C I O = 1.8 V VC C I O = 1.5 V VC C I O = 1.2 V v (3) Level shifter required Level shifter required 2-135 Stratix II GX Device Handbook, Volume 1 High-Speed Differential I/O with DPA Support Table 2-37. Supported TDO/TDI Voltage Combinations (Part 2 of 2) Device TDI Input Buffer Power Stratix II GX TDO VC C I O Voltage Level in I/O Bank 4 VC C I O = 3.3 V VC C I O = 2.5 V v (1) v (2) v (3) Level shifter required Level shifter required VCC = 2.5 V v (1), (4) v (2) v (3) Level shifter required Level shifter required VCC = 1.8 V v (1), (4) v (2), (5) v Level shifter required Level shifter required VCC = 1.5 V v (1), (4) v (2), (5) v (6) v v NonVCC = 3.3 V Stratix II GX VC C I O = 1.8 V VC C I O = 1.5 V VC C I O = 1.2 V Notes to Table 2-37: (1) (2) (3) (4) (5) (6) The TDO output buffer meets VOH (MIN) = 2.4 V. The TDO output buffer meets VOH (MIN) = 2.0 V. An external 250- pull-up resistor is not required, but recommended if signal levels on the board are not optimal. Input buffer must be 3.3-V tolerant. Input buffer must be 2.5-V tolerant. Input buffer must be 1.8-V tolerant. High-Speed Differential I/O with DPA Support Stratix II GX devices contain dedicated circuitry for supporting differential standards at speeds up to 1 Gbps. The LVDS differential I/O standards are supported in the Stratix II GX device. In addition, the LVPECL I/O standard is supported on input and output clock pins on the top and bottom I/O banks. The high-speed differential I/O circuitry supports the following high-speed I/O interconnect standards and applications: SPI-4 Phase 2 (POS-PHY Level 4) SFI-4 Parallel RapidIO standard There are two dedicated high-speed PLLs in the EP2SGX30 device and four dedicated high-speed PLLs in the EP2SGX60, EP2SGX90, and EP2SGX130 devices to multiply reference clocks and drive high-speed differential SERDES channels. Tables 2-38 through 2-41 show the number of channels that each Fast PLL can clock in each of the Stratix II GX devices. In Tables 2-38 through 2-41, the first row for each transmitter or receiver provides the number of channels driven directly by the PLL. The second row below it shows the maximum channels a Fast PLL can drive if cross bank channels are used from the adjacent center Fast PLL. For example, in the 780-pin FineLine BGA EP2SGX30 device, PLL 1 can drive a maximum of 2-136 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture 16 transmitter channels in I/O bank 1 or a maximum of 29 transmitter channels in I/O banks 1 and 2. The Quartus II software can also merge receiver and transmitter PLLs when a receiver is driving a transmitter. In this case, one fast PLL can drive both the maximum numbers of receiver and transmitter channels. Table 2-38. EP2SGX30 Device Differential Channels Note (1) Center Fast PLLs Package Package 780-pin FineLine BGA Transmitter/Receiver Total Channels 780-pin FineLine BGA 1,152-pin FineLine BGA 29 16 13 Receiver 31 17 14 Center Fast PLLs Corner Fast PLLs Note (1) Transmitter/Receiver Total Channels 1,152-pin FineLine BGA 1,508-pin FineLine BGA Altera Corporation October 2007 PLL1 PLL2 PLL7 PLL8 -- -- Transmitter 29 16 13 Receiver 31 17 14 -- -- Transmitter 42 21 21 21 21 Receiver 42 21 21 21 21 Table 2-40. EP2SGX90 Device Differential Channels Package PLL2 Transmitter Table 2-39. EP2SGX60 Device Differential Channels Package PLL1 Note (1) Total Channels Center Fast PLLs Corner Fast PLLs PLL1 PLL2 PLL7 PLL8 Transmitter 45 23 22 23 22 Transmitter/Receiver Receiver 47 23 24 23 24 Transmitter 59 30 29 29 29 Receiver 59 30 29 29 29 2-137 Stratix II GX Device Handbook, Volume 1 High-Speed Differential I/O with DPA Support Table 2-41. EP2SGX130 Device Differential Channels Package 1508-pin FineLine BGA Transmitter/Receiver Total Channels Note (1) Center Fast PLLs PLL1 PLL2 Corner Fast PLLs PLL7 PLL8 Transmitter 71 37 41 37 41 Receiver 73 37 41 37 41 Note to Tables 2-38 through 2-41: (1) The total number of receiver channels includes the four non-dedicated clock channels that can be optionally used as data channels. Therefore, the total number of channels is not the addition of the number of channels accessible by PLLs 1 and 2 with the number of channels accessible by PLLs 7 and 8. Dedicated Circuitry with DPA Support Stratix II GX devices support source-synchronous interfacing with LVDS signaling at up to 1 Gbps. Stratix II GX devices can transmit or receive serial channels along with a low-speed or high-speed clock. The receiving device PLL multiplies the clock by an integer factor W = 1 through 32. The SERDES factor J determines the parallel data width to deserialize from receivers or to serialize for transmitters. The SERDES factor J can be set to 4, 5, 6, 7, 8, 9, or 10 and does not have to equal the PLL clock-multiplication W value. A design using the dynamic phase aligner also supports all of these J factor values. For a J factor of 1, the Stratix II GX device bypasses the SERDES block. For a J factor of 2, the Stratix II GX device bypasses the SERDES block, and the DDR input and output registers are used in the IOE. Figure 2-88 shows the block diagram of the Stratix II GX transmitter channel. 2-138 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Figure 2-88. Stratix II GX Transmitter Channel Data from R4, R24, C4, or direct link interconnect + - 10 Local Interconnect Up to 1 Gbps 10 Dedicated Transmitter Interface diffioclk refclk Fast PLL load_en Regional or global clock Each Stratix II GX receiver channel features a DPA block for phase detection and selection, a SERDES, a synchronizer, and a data realigner circuit. You can bypass the dynamic phase aligner without affecting the basic source-synchronous operation of the channel. In addition, you can dynamically switch between using the DPA block or bypassing the block via a control signal from the logic array. Altera Corporation October 2007 2-139 Stratix II GX Device Handbook, Volume 1 High-Speed Differential I/O with DPA Support Figure 2-89 shows the block diagram of the Stratix II GX receiver channel. Figure 2-89. Stratix II GX Receiver Channel Data to R4, R24, C4, or direct link interconnect Up to 1 Gbps + - D Q Data Realignment Circuitry 10 data retimed_data DPA Synchronizer Dedicated Receiver Interface DPA_clk Eight Phase Clocks 8 diffioclk refclk Fast PLL load_en Regional or global clock An external pin or global or regional clock can drive the fast PLLs, which can output up to three clocks: two multiplied high-speed clocks to drive the SERDES block and/or external pin, and a low-speed clock to drive the logic array. In addition, eight phase-shifted clocks from the VCO can feed to the DPA circuitry. f For more information on the fast PLL, see the PLLs in Stratix II GX Devices chapter in volume 2 of the Stratix II GX Handbook. The eight phase-shifted clocks from the fast PLL feed to the DPA block. The DPA block selects the closest phase to the center of the serial data eye to sample the incoming data. This allows the source-synchronous circuitry to capture incoming data correctly regardless of the channel-to-channel or clock-to-channel skew. The DPA block locks to a phase closest to the serial data phase. The phase-aligned DPA clock is used to write the data into the synchronizer. The synchronizer sits between the DPA block and the data realignment and SERDES circuitry. Since every channel utilizing the DPA block can have a different phase selected to sample the data, the synchronizer is needed to synchronize the data to the high-speed clock domain of the data realignment and the SERDES circuitry. 2-140 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture For high-speed source synchronous interfaces such as POS-PHY 4 and the Parallel RapidIO standard, the source synchronous clock rate is not a byte- or SERDES-rate multiple of the data rate. Byte alignment is necessary for these protocols because the source synchronous clock does not provide a byte or word boundary since the clock is one half the data rate, not one eighth. The Stratix II GX device's high-speed differential I/O circuitry provides dedicated data realignment circuitry for user-controlled byte boundary shifting. This simplifies designs while saving ALM resources. You can use an ALM-based state machine to signal the shift of receiver byte boundaries until a specified pattern is detected to indicate byte alignment. Fast PLL and Channel Layout The receiver and transmitter channels are interleaved such that each I/O bank on the left side of the device has one receiver channel and one transmitter channel per LAB row. Figure 2-90 shows the fast PLL and channel layout in the EP2SGX30C/D and EP2SGX60C/D devices. Figure 2-91 shows the fast PLL and channel layout in EP2SGX60E, EP2SGX90E/F, and EP2SGX130G devices. Figure 2-90. Fast PLL and Channel Layout in the EP2SGX30C/D and EP2SGX60C/D Devices Note (1) 4 LVDS Clock DPA Clock Quadrant Quadrant Quadrant Quadrant 4 2 Fast PLL 1 Fast PLL 2 2 4 LVDS Clock DPA Clock Note to Figure 2-90: (1) See Table 2-38 for the number of channels each device supports. Altera Corporation October 2007 2-141 Stratix II GX Device Handbook, Volume 1 Referenced Documents Figure 2-91. Fast PLL and Channel Layout in the EP2SGX60E to EP2SGX130 Devices Note (1) Fast PLL 7 2 4 LVDS Clock DPA Clock Quadrant Quadrant DPA Clock Quadrant Quadrant 4 2 Fast PLL 1 Fast PLL 2 2 4 LVDS Clock 2 Fast PLL 8 Note to Figure 2-91: (1) See Tables 2-39 through Tables 2-41 for the number of channels each device supports. Referenced Documents This chapter references the following documents: DC & Switching Characteristics chapter in volume 1 of the Stratix II GX Handbook DSP Blocks in Stratix II GX Devices chapter in Volume 2 of the Stratix II GX Device Handbook External Memory Interfaces in Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II GX Device Handbook High-Speed Differential I/O Interfaces with DPA in Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II GX Handbook PLLs in Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II GX Device Handbook Selectable I/O Standards in Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II GX Handbook Stratix II GX Device Handbook, volume 2 Stratix II GX Transceiver Architecture Overview chapter in volume 2 of the Stratix II GX Handbook 2-142 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Document Revision History Stratix II Performance and Logic Efficiency Analysis White Paper TriMatrix Embedded Memory Blocks in Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II GX Device Handbook Table 2-42 shows the revision history for this chapter. Table 2-42. Document Revision History (Part 1 of 6) Date and Document Version October 2007, v2.2 Changes Made Summary of Changes Updated: "Programmable Pull-Up Resistor" "Reverse Serial Pre-CDR Loopback" "Receiver Input Buffer" "Pattern Detection" "Control and Status Signals" "Individual Power Down and Reset for the Transmitter and Receiver" Updated: Figure 2-14 Figure 2-26 Figure 2-27 Figure 2-86 (notes only) Figure 2-87 Updated: Table 2-4 Table 2-7 Removed note from Table 2-31. Removed Tables 2-2, 2-7, and 2-8. Minor text edits. August 2007, v2.1 Added "Reverse Serial Pre-CDR Loopback" section. Updated Table 2-2. Added "Referenced Documents" section. Altera Corporation October 2007 2-143 Stratix II GX Device Handbook, Volume 1 Document Revision History Table 2-42. Document Revision History (Part 2 of 6) Date and Document Version February 2007 v2.0 Changes Made Added Chapter 02 "Stratix II GX Transceivers" to the beginning of Chapter 03 "Stratix II GX Architecture". Changed chapter number to Chapter 02. Summary of Changes Combined Chapter 02 "Stratix II GX Transceivers" and Chapter 03 "Stratix II GX Architecture" in the new Chapter 02 "Stratix II GX Architecture" Added the "Document Revision History" section to this chapter. Moved the "Stratix II GX Transceiver Clocking" section to after the "Receiver Path" section. 2-144 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Table 2-42. Document Revision History (Part 3 of 6) Date and Document Version Changes Made Summary of Changes Moved the "Transmit State Machine" section to after the "8B/10B Encoder" section. Moved the "PCI Express Receiver Detect" and "PCI Express Electric Idles (or Individual Transmitter Tri-State)" sections to after the "Transmit Buffer" section. Moved the "Dynamic Reconfiguration" section to the "Other Transceiver Features" section. Moved the "Calibration Block", "Receiver PLL & CRU", and "Deserializer (Serial-to-Parallel Converter)" sections to the "Receiver Path" section. Moved the "8B/10B Decoder" and "Receiver State Machine" sections to after the "Rate Matcher" section. Moved the "Byte Ordering Block" section to after the "Byte Deserializer" section. Updated the Clocking diagrams. Added the "Clock Resource for PLDTransceiver Interface" section. Added the "On-Chip Parallel Termination with Calibration" section to the "On-Chip Termination" section. Updated: Table 2-2. Table 2-10 Table 2-14. Table 2-3. Table 2-5. Table 2-8. Table 2-13 Table 2-18 Table 2-19 Table 2-29. Updated Figures 2-3, 2-9, 2-24, 2-25, 2-28, 2-29, 2-60, 2-62. Change 622 Mbps to 600 Mbps throughout the chapter. Altera Corporation October 2007 2-145 Stratix II GX Device Handbook, Volume 1 Document Revision History Table 2-42. Document Revision History (Part 4 of 6) Date and Document Version Changes Made Summary of Changes Updated: "Transmitter PLLs" "Transmitter Phase Compensation FIFO Buffer" "8B/10B Encoder" "Byte Serializer" "Programmable Output Driver" "Receiver PLL & CRU" "Programmable Pre-Emphasis" "Receiver Input Buffer" "Control and Status Signals" "Programmable Run Length Violation" "Channel Aligner" "Basic Mode" "Byte Ordering Block" "Receiver Phase Compensation FIFO Buffer" "Loopback Modes" "Serial Loopback" "Parallel Loopback" "Regional Clock Network" "MultiVolt I/O Interface" "High-Speed Differential I/O with DPA Support" Updated bulleted lists at the beginning of the "Transceivers" section. Added reference to the "Transmit Buffer" section. Deleted the Programmable VOD table from the "Programmable Output Driver" section. Changed "PLD Interface" heading to "Parallel Data Width" heading in Table 2-14. Deleted "Global & Regional Clock Connections from Right Side Clock Pins & Fast PLL Outputs" table. Updated notes to Tables 2-29 and 2-37. Updated notes to Figures 2-72, 2-73 and 2-74. Updated bulleted list in the "Advanced I/O Standard Support" section. 2-146 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Stratix II GX Architecture Table 2-42. Document Revision History (Part 5 of 6) Date and Document Version Previous Chapter 02 changes: June 2006, v1.2 Changes Made Previous Chapter 02 changes: April 2006, v1.1 Updated input frequency range in Updated notes 1 and 2 in Figure 2-1. Table 2-4. Updated "Byte Serializer" section. Updated Tables 2-4, 2-7, and 2-16. Updated "Programmable Output Driver" section. Updated Figure 2-12. Updated "Programmable Pre-Emphasis" section. Added Table 2-11. Added "Dynamic Reconfiguration" section. Added "Calibration Block" section. Updated "Programmable Equalizer" section, including addition of Figure 2-18. Updated Figure 2-3. Updated Figure 2-7. Updated Table 2-4. Updated "Transmit Buffer" section. Previous Chapter 02 changes: October 2005 v1.0 Added chapter to the Stratix II GX Device Handbook. Previous Chapter 03 changes: August 2006, v1.4 Updated Table 3-18 with note. Previous Chapter 03 changes: June 2006, v1.3 Updated note 2 in Figure 3-41. Updated column title in Table 3-21. Previous Chapter 03 changes: April 2006, v1.2 Altera Corporation October 2007 Summary of Changes Updated note 1 in Table 3-9. Updated note 1 in Figure 3-40. Updated note 2 in Figure 3-41. Updated Table 3-16. Updated Figure 3-56. Updated Tables 3-19 through 3-22. Updated Tables 3-25 and 3-26. Updated "Fast PLL & Channel Layout" section. Updated input frequency range in Table 2-4. Added 1,152-pin FineLine BGA package information for EP2SGX60 device in Table 3-16. 2-147 Stratix II GX Device Handbook, Volume 1 Document Revision History Table 2-42. Document Revision History (Part 6 of 6) Date and Document Version Changes Made Previous Chapter 03 changes: December 2005 v1.1 Updated Figure 3-56. Previous Chapter 03 changes: October 2005 v1.0 Added chapter to the Stratix II GX Device Handbook. 2-148 Stratix II GX Device Handbook, Volume 1 Summary of Changes Altera Corporation October 2007 3. Configuration & Testing SIIGX51005-1.4 IEEE Std. 1149.1 JTAG BoundaryScan Support All Stratix(R) II GX devices provide Joint Test Action Group (JTAG) boundary-scan test (BST) circuitry that complies with the IEEE Std. 1149.1. You can perform JTAG boundary-scan testing either before or after, but not during configuration. Stratix II GX devices can also use the JTAG port for configuration with the Quartus(R) II software or hardware using either Jam Files (.jam) or Jam Byte-Code Files (.jbc). Stratix II GX devices support IOE I/O standard setting reconfiguration through the JTAG BST chain. The JTAG chain can update the I/O standard for all input and output pins any time before or during user mode through the CONFIG_IO instruction. You can use this capability for JTAG testing before configuration when some of the Stratix II GX pins drive or receive from other devices on the board using voltage-referenced standards. Since the Stratix II GX device may not be configured before JTAG testing, the I/O pins may not be configured for appropriate electrical standards for chip-to-chip communication. Programming these I/O standards via JTAG allows you to fully test I/O connections to other devices. A device operating in JTAG mode uses four required pins, TDI, TDO, TMS, and TCK, and one optional pin, TRST. The TCK pin has an internal weak pull-down resistor, while the TDI, TMS, and TRST pins have weak internal pull-up resistors. The JTAG input pins are powered by the 3.3-V VCCPD pins. The TDO output pin is powered by the VCCIO power supply in I/O bank 4. Stratix II GX devices also use the JTAG port to monitor the logic operation of the device with the SignalTap(R) II embedded logic analyzer. Stratix II GX devices support the JTAG instructions shown in Table 3-1. 1 Altera Corporation October 2007 Stratix II GX devices must be within the first eight devices in a JTAG chain. All of these devices have the same JTAG controller. If any of the Stratix II GX devices appear after the eighth device in the JTAG chain, they will fail configuration. This does not affect SignalTap II embedded logic analysis. 3-1 IEEE Std. 1149.1 JTAG Boundary-Scan Support Table 3-1. Stratix II GX JTAG Instructions JTAG Instruction Instruction Code Description SAMPLE/PRELOAD 00 0000 0101 Allows a snapshot of signals at the device pins to be captured and examined during normal device operation and permits an initial data pattern to be output at the device pins. Also used by the SignalTap II embedded logic analyzer. EXTEST(1) 00 0000 1111 Allows the external circuitry and board-level interconnects to be tested by forcing a test pattern at the output pins and capturing test results at the input pins. BYPASS 11 1111 1111 Places the 1-bit bypass register between the TDI and TDO pins, which allows the BST data to pass synchronously through selected devices to adjacent devices during normal device operation. USERCODE 00 0000 0111 Selects the 32-bit USERCODE register and places it between the TDI and TDO pins, allowing the USERCODE to be serially shifted out of TDO. IDCODE 00 0000 0110 Selects the IDCODE register and places it between TDI and TDO, allowing the IDCODE to be serially shifted out of TDO. HIGHZ (1) 00 0000 1011 Places the 1-bit bypass register between the TDI and TDO pins, which allows the BST data to pass synchronously through selected devices to adjacent devices during normal device operation, while tri-stating all of the I/O pins. CLAMP (1) 00 0000 1010 Places the 1-bit bypass register between the TDI and TDO pins, which allows the BST data to pass synchronously through selected devices to adjacent devices during normal device operation while holding the I/O pins to a state defined by the data in the boundaryscan register. ICR instructions Used when configuring a Stratix II GX device via the JTAG port with a USB-BlasterTM, MasterBlasterTM, ByteBlasterMVTM, or ByteBlaster II download cable, or when using a .jam or .jbc via an embedded processor or JRunner. PULSE_NCONFIG 00 0000 0001 Emulates pulsing the nCONFIG pin low to trigger reconfiguration even though the physical pin is unaffected. CONFIG_IO (2) 00 0000 1101 Allows configuration of I/O standards through the JTAG chain for JTAG testing. Can be executed before, during, or after configuration. Stops configuration if executed during configuration. Once issued, the CONFIG_IO instruction holds nSTATUS low to reset the configuration device. nSTATUS is held low until the IOE configuration register is loaded and the TAP controller state machine transitions to the UPDATE_DR state. SignalTap II instructions Monitors internal device operation with the SignalTap II embedded logic analyzer. Notes to Table 3-1: (1) (2) Bus hold and weak pull-up resistor features override the high-impedance state of HIGHZ, CLAMP, and EXTEST. For more information on using the CONFIG_IO instruction, refer to the MorphIO: An I/O Reconfiguration Solution for Altera Devices White Paper. 3-2 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Configuration & Testing The Stratix II GX device instruction register length is 10 bits and the USERCODE register length is 32 bits. Tables 3-2 and 3-3 show the boundaryscan register length and device IDCODE information for Stratix II GX devices. Table 3-2. Stratix II GX Boundary-Scan Register Length Device Boundary-Scan Register Length EP2SGX30 1,320 EP2SGX60 1,506 EP2SGX90 2,016 EP2SGX130 2,454 Table 3-3. 32-Bit Stratix II GX Device IDCODE IDCODE (32 Bits) Device Version (4 Bits) Part Number (16 Bits) Manufacturer Identity (11 Bits) LSB (1 Bit) EP2SGX30 0000 0010 0000 1110 0001 000 0110 1110 1 EP2SGX60 0000 0010 0000 1110 0010 000 0110 1110 1 EP2SGX90 0000 0010 0000 1110 0011 000 0110 1110 1 EP2SGX130 0000 0010 0000 1110 0100 000 0110 1110 1 SignalTap II Embedded Logic Analyzer Stratix II GX devices feature the SignalTap II embedded logic analyzer, which monitors design operation over a period of time through the IEEE Std. 1149.1 (JTAG) circuitry. You can analyze internal logic at speed without bringing internal signals to the I/O pins. This feature is particularly important for advanced packages, such as FineLine BGA packages, because it can be difficult to add a connection to a pin during the debugging process after a board is designed and manufactured. Configuration The logic, circuitry, and interconnects in the Stratix II GX architecture are configured with CMOS SRAM elements. Altera(R) FPGAs are reconfigurable and every device is tested with a high coverage production test program so you do not have to perform fault testing and can instead focus on simulation and design verification. Stratix II GX devices are configured at system power-up with data stored in an Altera configuration device or provided by an external controller (for example, a MAX(R) II device or microprocessor). You can configure Stratix II GX devices using the fast passive parallel (FPP), active serial Altera Corporation October 2007 3-3 Stratix II GX Device Handbook, Volume 1 Configuration (AS), passive serial (PS), passive parallel asynchronous (PPA), and JTAG configuration schemes. The Stratix II GX device's optimized interface allows microprocessors to configure it serially or in parallel and synchronously or asynchronously. The interface also enables microprocessors to treat Stratix II GX devices as memory and configure them by writing to a virtual memory location, making reconfiguration easy. In addition to the number of configuration methods supported, Stratix II GX devices also offer the design security, decompression, and remote system upgrade features. The design security feature, using configuration bitstream encryption and advanced encryption standard (AES) technology, provides a mechanism to protect designs. The decompression feature allows Stratix II GX FPGAs to receive a compressed configuration bitstream and decompress this data in realtime, reducing storage requirements and configuration time. The remote system upgrade feature allows real-time system upgrades from remote locations of Stratix II GX designs. For more information, refer to the "Configuration Schemes" on page 3-6. Operating Modes The Stratix II GX architecture uses SRAM configuration elements that require configuration data to be loaded each time the circuit powers up. The process of physically loading the SRAM data into the device is called configuration. During initialization, which occurs immediately after configuration, the device resets registers, enables I/O pins, and begins to operate as a logic device. The I/O pins are tri-stated during power-up, and before and during configuration. Together, the configuration and initialization processes are called command mode. Normal device operation is called user mode. SRAM configuration elements allow you to reconfigure Stratix II GX devices in-circuit by loading new configuration data into the device. With real-time reconfiguration, the device is forced into command mode with a device pin. The configuration process loads different configuration data, re-initializes the device, and resumes user-mode operation. You can perform in-field upgrades by distributing new configuration files either within the system or remotely. The PORSEL pin is a dedicated input used to select power-on reset (POR) delay times of 12 ms or 100 ms during power up. When the PORSEL pin is connected to ground, the POR time is 100 ms. When the PORSEL pin is connected to VCC, the POR time is 12 ms. 3-4 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Configuration & Testing The nIO_PULLUP pin is a dedicated input that chooses whether the internal pull-up resistors on the user I/O pins and dual-purpose configuration I/O pins (nCSO, ASDO, DATA[7..0], nWS, nRS, RDYnBSY, nCS, CS, RUnLU, PGM[2..0], CLKUSR, INIT_DONE, DEV_OE, DEV_CLR) are on or off before and during configuration. A logic high (1.5, 1.8, 2.5, 3.3 V) turns off the weak internal pull-up resistors, while a logic low turns them on. Stratix II GX devices also offer a new power supply, VCCPD, which must be connected to 3.3 V in order to power the 3.3-V/2.5-V buffer available on the configuration input pins and JTAG pins. VCCPD applies to all the JTAG input pins (TCK, TMS, TDI, and TRST) and the following configuration pins: nCONFIG, DCLK (when used as an input), nIO_PULLUP, DATA[7..0], RUnLU, nCE, nWS, nRS, CS, nCS, and CLKUSR. The VCCSEL pin allows the VCCIO setting (of the banks where the configuration inputs reside) to be independent of the voltage required by the configuration inputs. Therefore, when selecting the VCCIO voltage, you do not have to take the VIL and VIH levels driven to the configuration inputs into consideration. The configuration input pins, nCONFIG, DCLK (when used as an input), nIO_PULLUP, RUnLU, nCE, nWS, nRS, CS, nCS, and CLKUSR, have a dual buffer design: a 3.3-V/2.5-V input buffer and a 1.8-V/1.5-V input buffer. The VCCSEL input pin selects which input buffer is used. The 3.3-V/2.5-V input buffer is powered by VCCPD, while the 1.8V/1.5-V input buffer is powered by VCCIO. VCCSEL is sampled during power-up. Therefore, the VCCSEL setting cannot change on-the-fly or during a reconfiguration. The VCCSEL input buffer is powered by VCCINT and must be hardwired to VCCPD or ground. A logic high VCCSEL connection selects the 1.8-V/1.5-V input buffer; a logic low selects the 3.3-V/2.5-V input buffer. VCCSEL should be set to comply with the logic levels driven out of the configuration device or the MAX II microprocessor. If the design must support configuration input voltages of 3.3 V/2.5 V, set VCCSEL to a logic low. You can set the VCCIO voltage of the I/O bank that contains the configuration inputs to any supported voltage. If the design must support configuration input voltages of 1.8 V/1.5 V, set VCCSEL to a logic high and the VCCIO of the bank that contains the configuration inputs to 1.8 V/1.5 V. f Altera Corporation October 2007 For more information on multi-volt support, including information on using TDO and nCEO in multi-volt systems, refer to the Stratix II GX Architecture chapter in volume 1 of the Stratix II GX Device Handbook. 3-5 Stratix II GX Device Handbook, Volume 1 Configuration Configuration Schemes You can load the configuration data for a Stratix II GX device with one of five configuration schemes (refer to Table 3-4), chosen on the basis of the target application. You can use a configuration device, intelligent controller, or the JTAG port to configure a Stratix II GX device. A configuration device can automatically configure a Stratix II GX device at system power-up. Multiple Stratix II GX devices can be configured in any of the five configuration schemes by connecting the configuration enable (nCE) and configuration enable output (nCEO) pins on each device. Stratix II GX FPGAs offer the following: Configuration data decompression to reduce configuration file storage Design security using configuration data encryption to protect designs Remote system upgrades for remotely updating Stratix II GX designs Table 3-4 summarizes which configuration features can be used in each configuration scheme. f Refer to the Configuring Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II GX Device Handbook for more information about configuration schemes in Stratix II GX devices. Table 3-4. Stratix II GX Configuration Features (Part 1 of 2) Configuration Scheme Configuration Method Design Security Decompression v (1) v v (2) v v v v (3) v v v Enhanced configuration device v v v Download cable (4) v v FPP MAX II device or microprocessor and flash device AS Serial configuration device MAX II device or microprocessor and flash device v (1) Enhanced configuration device PS PPA Remote System Upgrade MAX II device or microprocessor and flash device 3-6 Stratix II GX Device Handbook, Volume 1 v Altera Corporation October 2007 Configuration & Testing Table 3-4. Stratix II GX Configuration Features (Part 2 of 2) Configuration Scheme Configuration Method Design Security Decompression Remote System Upgrade Download cable (4) JTAG MAX II device or microprocessor and flash device Notes for Table 3-4: (1) (2) (3) (4) In these modes, the host system must send a DCLK that is 4x the data rate. The enhanced configuration device decompression feature is available, while the Stratix II GX decompression feature is not available. Only remote update mode is supported when using the AS configuration scheme. Local update mode is not supported. The supported download cables include the Altera USB-Blaster universal serial bus (USB) port download cable, MasterBlaster serial/USB communications cable, ByteBlaster II parallel port download cable, and the ByteBlasterMV parallel port download cable. Device Security Using Configuration Bitstream Encryption Stratix II and Stratix II GX FPGAs are the industry's first FPGAs with the ability to decrypt a configuration bitstream using the AES algorithm. When using the design security feature, a 128-bit security key is stored in the Stratix II GX FPGA. To successfully configure a Stratix II GX FPGA that has the design security feature enabled, the device must be configured with a configuration file that was encrypted using the same 128-bit security key. The security key can be stored in non-volatile memory inside the Stratix II GX device. This nonvolatile memory does not require any external devices, such as a battery back up, for storage. 1 An encrypted configuration file is the same size as a non-encrypted configuration file. When using a serial configuration scheme such as passive serial (PS) or active serial (AS), configuration time is the same whether or not the design security feature is enabled. If the fast passive parallel (FPP) scheme is used with the design security or decompression feature, a 4x DCLK is required. This results in a slower configuration time when compared to the configuration time of an FPGA that has neither the design security nor the decompression feature enabled. For more information about this feature, contact an Altera sales representative. Device Configuration Data Decompression Stratix II GX FPGAs support decompression of configuration data, which saves configuration memory space and time. This feature allows you to store compressed configuration data in configuration devices or other Altera Corporation October 2007 3-7 Stratix II GX Device Handbook, Volume 1 Configuration memory, and transmit this compressed bitstream to Stratix II GX FPGAs. During configuration, the Stratix II GX FPGA decompresses the bitstream in real time and programs its SRAM cells. Stratix II GX FPGAs support decompression in the FPP (when using a MAX II device or microprocessor and flash memory), AS, and PS configuration schemes. Decompression is not supported in the PPA configuration scheme nor in JTAG-based configuration. Remote System Upgrades Shortened design cycles, evolving standards, and system deployments in remote locations are difficult challenges faced by system designers. Stratix II GX devices can help effectively deal with these challenges with their inherent re programmability and dedicated circuitry to perform remote system updates. Remote system updates help deliver feature enhancements and bug fixes without costly recalls, reducing time to market, and extending product life. Stratix II GX FPGAs feature dedicated remote system upgrade circuitry to facilitate remote system updates. Soft logic (Nios processor or user logic) implemented in the Stratix II GX device can download a new configuration image from a remote location, store it in configuration memory, and direct the dedicated remote system upgrade circuitry to initiate a reconfiguration cycle. The dedicated circuitry performs error detection during and after the configuration process, recovers from any error condition by reverting back to a safe configuration image, and provides error status information. This dedicated remote system upgrade circuitry avoids system downtime and is the critical component for successful remote system upgrades. Remote system configuration is supported in the following Stratix II GX configuration schemes: FPP, AS, PS, and PPA. Remote system configuration can also be implemented in conjunction with Stratix II GX features such as real-time decompression of configuration data and design security using AES for secure and efficient field upgrades. f Refer to the Remote System Upgrades with Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II GX Device Handbook for more information about remote configuration in Stratix II GX devices. Configuring Stratix II GX FPGAs with JRunner The JRunnerTM software driver configures Altera FPGAs, including Stratix II GX FPGAs, through the ByteBlaster II or ByteBlasterMV cables in JTAG mode. The programming input file supported is in Raw Binary File (.rbf) format. JRunner also requires a Chain Description File (.cdf) 3-8 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Configuration & Testing generated by the Quartus II software. JRunner is targeted for embedded JTAG configuration. The source code is developed for the Windows NT operating system (OS), but can be customized to run on other platforms. f For more information on the JRunner software driver, refer to the AN 414: An Embedded Solution for PLD JTAG Configuration and the source files on the Altera web site (www.altera.com). Programming Serial Configuration Devices with SRunner A serial configuration device can be programmed in-system by an external microprocessor using SRunner. SRunner is a software driver developed for embedded serial configuration device programming that can be easily customized to fit into different embedded systems. SRunner reads a Raw Programming Data file (.rpd) and writes to serial configuration devices. The serial configuration device programming time using SRunner is comparable to the programming time when using the Quartus II software. f For more information about SRunner, refer to the AN 418 SRunner: An Embedded Solution for Serial Configuration Device Programming and the source code on the Altera web site. f For more information on programming serial configuration devices, refer to the Serial Configuration Devices (EPCS1, EPCS4, EPCS64, and EPCS128) Data Sheet in the Configuration Handbook. Configuring Stratix II FPGAs with the MicroBlaster Driver The MicroBlaster software driver supports an RBF programming input file and is ideal for embedded FPP or PS configuration. The source code is developed for the Windows NT operating system, although it can be customized to run on other operating systems. f For more information on the MicroBlaster software driver, refer to the Configuring the MicroBlaster Fast Passive Parallel Software Driver White Paper or the Configuring the MicroBlaster Passive Serial Software Driver White Paper on the Altera web site. PLL Reconfiguration The phase-locked loops (PLLs) in the Stratix II GX device family support reconfiguration of their multiply, divide, VCO-phase selection, and bandwidth selection settings without reconfiguring the entire device. You can use either serial data from the logic array or regular I/O pins to program the PLL's counter settings in a serial chain. This option provides Altera Corporation October 2007 3-9 Stratix II GX Device Handbook, Volume 1 Temperature Sensing Diode (TSD) considerable flexibility for frequency synthesis, allowing real-time variation of the PLL frequency and delay. The rest of the device is functional while reconfiguring the PLL. f Temperature Sensing Diode (TSD) See the PLLs in Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II GX Device Handbook for more information on Stratix II GX PLLs. Stratix II GX devices include a diode-connected transistor for use as a temperature sensor in power management. This diode is used with an external digital thermometer device. These devices steer bias current through the Stratix II GX diode, measuring forward voltage and converting this reading to temperature in the form of an 8-bit signed number (7 bits plus 1 sign bit). The external device's output represents the junction temperature of the Stratix II GX device and can be used for intelligent power management. The diode requires two pins (tempdiodep and tempdioden) on the Stratix II GX device to connect to the external temperature-sensing device, as shown in Figure 3-1. The temperature sensing diode is a passive element and therefore can be used before the Stratix II GX device is powered. Figure 3-1. External Temperature-Sensing Diode Stratix II GX Device Temperature-Sensing Device tempdiodep tempdioden 3-10 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Configuration & Testing Table 3-5 shows the specifications for bias voltage and current of the Stratix II GX temperature sensing diode. Table 3-5. Temperature-Sensing Diode Electrical Characteristics Parameter IBIAS high IBIAS low VBP - VBN Minimum Typical Maximum Unit 80 100 120 A 8 10 12 A 0.9 V 0.3 VBN 0.7 V Series resistance 3 The temperature-sensing diode works for the entire operating range shown in Figure 3-2. Figure 3-2. Temperature Versus Temperature-Sensing Diode Voltage 0.95 0.90 100 A Bias Current 10 A Bias Current 0.85 0.80 0.75 Voltage (Across Diode) 0.70 0.65 0.60 0.55 0.50 0.45 0.40 -55 -30 -5 20 45 70 95 120 Temperature (C) Altera Corporation October 2007 3-11 Stratix II GX Device Handbook, Volume 1 Automated Single Event Upset (SEU) Detection The temperature sensing diode is a very sensitive circuit which can be influenced by noise coupled from other traces on the board, and possibly within the device package itself, depending on device usage. The interfacing device registers temperature based on millivolts of difference as seen at the TSD. Switching I/O near the TSD pins can affect the temperature reading. Altera recommends you take temperature readings during periods of no activity in the device (for example, standby mode where no clocks are toggling in the device), such as when the nearby I/Os are at a DC state, and disable clock networks in the device. Automated Single Event Upset (SEU) Detection Stratix II GX devices offer on-chip circuitry for automated checking of single event upset (SEU) detection. Some applications that require the device to operate error free at high elevations or in close proximity to Earth's North or South Pole will require periodic checks to ensure continued data integrity. The error detection cyclic redundancy check (CRC) feature controlled by the Device & Pin Options dialog box in the Quartus II software uses a 32-bit CRC circuit to ensure data reliability and is one of the best options for mitigating SEU. You can implement the error detection CRC feature with existing circuitry in Stratix II GX devices, eliminating the need for external logic. Stratix II GX devices compute CRC during configuration and checks the computed-CRC against an automatically computed CRC during normal operation. The CRC_ERROR pin reports a soft error when configuration SRAM data is corrupted, triggering device reconfiguration. Custom-Built Circuitry Dedicated circuitry is built into Stratix II GX devices to automatically perform error detection. This circuitry constantly checks for errors in the configuration SRAM cells while the device is in user mode. You can monitor one external pin for the error and use it to trigger a reconfiguration cycle. You can select the desired time between checks by adjusting a built-in clock divider. Software Interface Beginning with version 4.1 of the Quartus II software, you can turn on the automated error detection CRC feature in the Device & Pin Options dialog box. This dialog box allows you to enable the feature and set the internal frequency of the CRC between 400 kHz to 50 MHz. This controls the rate that the CRC circuitry verifies the internal configuration SRAM bits in the Stratix II GX FPGA. f For more information on CRC, refer to AN 357: Error Detection Using CRC in Altera FPGA Devices. 3-12 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 Configuration & Testing Referenced Documents This chapter references the following documents: Document Revision History AN 357: Error Detection Using CRC in Altera FPGA Devices AN 414: An Embedded Solution for PLD JTAG Configuration AN 418 SRunner: An Embedded Solution for Serial Configuration Device Programming Configuring Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II GX Device Handbook Configuring the MicroBlaster Fast Passive Parallel Software Driver White Paper Configuring the MicroBlaster Passive Serial Software Driver White Paper MorphIO: An I/O Reconfiguration Solution for Altera Devices White Paper PLLs in Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II GX Device Handbook Remote System Upgrades with Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II GX Device Handbook Serial Configuration Devices (EPCS1, EPCS4, EPCS64, and EPCS128) Data Sheet in the Configuration Handbook Stratix II GX Architecture chapter in volume 1 of the Stratix II GX Device Handbook. Table 3-6 shows the revision history for this chapter. Table 3-6. Document Revision History Date and Document Version Changes Made Summary of Changes October 2007 v1.4 Minor text edits. -- August 2007 v1.3 Updated the note in the "IEEE Std. 1149.1 JTAG Boundary-Scan Support" -- Updated Table 3-3. -- Added the "Referenced Documents" section. -- May 2007 v1.2 Updated the "Temperature Sensing Diode (TSD)" section. -- February 2007 v1.1 Added the "Document Revision History" section Added support information for the to this chapter. Stratix II GX device. October 2005 v1.0 Added chapter to the Stratix II GX Device Handbook. Altera Corporation October 2007 -- 3-13 Stratix II GX Device Handbook, Volume 1 Document Revision History 3-14 Stratix II GX Device Handbook, Volume 1 Altera Corporation October 2007 4. DC and Switching Characteristics SIIGX51006-4.6 Operating Conditions Stratix(R) II GX devices are offered in both commercial and industrial grades. Industrial devices are offered in -4 speed grade and commercial devices are offered in -3 (fastest), -4, and -5 speed grades. Tables 4-1 through 4-51 provide information on absolute maximum ratings, recommended operating conditions, DC electrical characteristics, and other specifications for Stratix II GX devices. Absolute Maximum Ratings Table 4-1 contains the absolute maximum ratings for the Stratix II GX device family. Table 4-1. Stratix II GX Device Absolute Maximum Ratings Symbol Parameter Notes (1), (2),(3) Conditions Minimum Maximum Unit VCCINT Supply voltage With respect to ground -0.5 1.8 V VCCIO Supply voltage With respect to ground -0.5 4.6 V VCCPD Supply voltage With respect to ground -0.5 4.6 V VI DC input voltage (4) -0.5 4.6 V IOUT DC output current, per pin -25 40 mA TSTG Storage temperature No bias -65 150 C TJ Junction temperature BGA packages under bias -55 125 C Notes to Table 4-1: (1) (2) (3) (4) See the Operating Requirements for Altera Devices Data Sheet for more information. Conditions beyond those listed in Table 4-1 may cause permanent damage to a device. Additionally, device operation at the absolute maximum ratings for extended periods of time may have adverse affects on the device. Supply voltage specifications apply to voltage readings taken at the device pins, not at the power supply. During transitions, the inputs may overshoot to the voltage shown in Table 4-2 based upon the input duty cycle. The DC case is equivalent to 100% duty cycle. During transitions, the inputs may undershoot to -2.0 V for input currents less than 100 mA and periods shorter than 20 ns. Altera Corporation June 2009 4-1 Operating Conditions Table 4-2. Maximum Duty Cycles in Voltage Transitions Symbol Parameter Condition Maximum Duty Cycles (%) (1) VI Maximum duty cycles in voltage transitions VI = 4.0 V 100 VI = 4.1 V 90 VI = 4.2 V 50 VI = 4.3 V 30 VI = 4.4 V 17 VI = 4.5 V 10 Note to Table 4-2: (1) During transition, the inputs may overshoot to the voltages shown based on the input duty cycle. The duty cycle case is equivalent to 100% duty cycle. Recommended Operating Conditions Table 4-3 contains the Stratix II GX device family recommended operating conditions. Table 4-3. Stratix II GX Device Recommended Operating Conditions (Part 1 of 2) Symbol Parameter Conditions Note (1) Minimum Maximum Unit 1.15 1.25 V 100 s rise time 100 ms (3), (6) 3.135 (3.00) 3.465 (3.60) V Supply voltage for output buffers, 2.5-V operation 100 s rise time 100 ms (3) 2.375 2.625 V Supply voltage for output buffers, 1.8-V operation 100 s rise time 100 ms (3) 1.71 1.89 V Supply voltage for output buffers, 1.5-V operation 100 s rise time 100 ms (3) 1.425 1.575 V Supply voltage for output buffers, 1.2-V operation 100 s rise time 100 ms (3) 1.15 1.25 V VCCPD Supply voltage for pre-drivers as 100 s rise time 100 ms (4) well as configuration and JTAG I/O buffers. 3.135 3.465 V VI Input voltage (see Table 4-2) -0.5 4.0 V VO Output voltage 0 VCCIO V VCCINT Supply voltage for internal logic and input buffers 100 s rise time 100 ms (3) VCCIO Supply voltage for output buffers, 3.3-V operation 4-2 Stratix II GX Device Handbook, Volume 1 (2), (5) Altera Corporation June 2009 DC and Switching Characteristics Table 4-3. Stratix II GX Device Recommended Operating Conditions (Part 2 of 2) Symbol TJ Parameter Operating junction temperature Conditions Minimum Maximum Unit 0 85 C -40 100 C For commercial use For industrial use Note (1) Notes to Table 4-3: (1) (2) (3) (4) (5) (6) Supply voltage specifications apply to voltage readings taken at the device pins, not at the power supply. During transitions, the inputs may overshoot to the voltage shown in Table 4-2 based upon the input duty cycle. The DC case is equivalent to 100% duty cycle. During transitions, the inputs may undershoot to -2.0 V for input currents less than 100 mA and periods shorter than 20 ns. Maximum VCC rise time is 100 ms, and VCC must rise monotonically from ground to VCC. VCCPD must ramp-up from 0 V to 3.3 V within 100 s to 100 ms. If VCCPD is not ramped up within this specified time, the Stratix II GX device will not configure successfully. If the system does not allow for a VCCPD ramp-up time of 100 ms or less, hold nCONFIG low until all power supplies are reliable. All pins, including dedicated inputs, clock, I/O, and JTAG pins, may be driven before VCCINT, VCCPD, and VCCIO are powered. VCCIO maximum and minimum conditions for PCI and PCI-X are shown in parentheses. Transceiver Block Characteristics Tables 4-4 through 4-6 contain transceiver block specifications. Table 4-4. Stratix II GX Transceiver Block Absolute Maximum Ratings Symbol Parameter Conditions Note (1) Minimum Maximum Units VCCA Transceiver block supply voltage Commercial and industrial -0.5 4.6 V VCCP Transceiver block supply voltage Commercial and industrial -0.5 1.8 V VCCR Transceiver block supply Voltage Commercial and industrial -0.5 1.8 V VCCT Transceiver block supply voltage Commercial and industrial -0.5 1.8 V VCCT_B Transceiver block supply voltage Commercial and industrial -0.5 1.8 V VCCL Transceiver block supply voltage Commercial and industrial -0.5 1.8 V VCCH_B Transceiver block supply voltage Commercial and industrial -0.5 2.4 V Note to Table 4-4: (1) The device can tolerate prolonged operation at this absolute maximum, as long as the maximum specification is not violated. Altera Corporation June 2009 4-3 Stratix II GX Device Handbook, Volume 1 Operating Conditions Table 4-5. Stratix II GX Transceiver Block Operating Conditions Symbol Parameter Conditions Minimum Typical Maximum Units VCCA Transceiver block supply voltage Commercial and industrial 3.135 3.3 3.465 V VCCP Transceiver block supply voltage Commercial and industrial 1.15 1.2 1.25 V VCCR Transceiver block supply voltage Commercial and industrial 1.15 1.2 1.25 V VCCT Transceiver block supply voltage Commercial and industrial 1.15 1.2 1.25 V VCCT_B Transceiver block supply voltage Commercial and industrial 1.15 1.2 1.25 V VCCL Transceiver block supply voltage Commercial and industrial 1.15 1.2 1.25 V VCCH_B (2) Transceiver block supply voltage Commercial and industrial 1.15 1.2 1.25 V RREF (1) Reference resistor Commercial and industrial 1.425 1.5 1.575 V 2000 -1% 2000 2000 +1% Notes to Table 4-5: (1) (2) The DC signal on this pin must be as clean as possible. Ensure that no noise is coupled to this pin. Refer to the Stratix II GX Device Handbook, volume 2, for more information. Table 4-6. Stratix II GX Transceiver Block AC Specification (Part 1 of 6) Symbol / Description Conditions -3 Speed Commercial Speed Grade -4 Speed Commercial and Industrial Speed Grade -5 Speed Commercial Speed Grade Unit Min Typ Max Min Typ Max Min Typ Max Input frequency from REFCLK input 50 - 622.08 50 - 622.08 50 - 622.08 MHz Input frequency from PLD input 50 - 325 50 - 325 50 - 325 MHz 3.3 V Reference clock Input clock jitter Absolute VM A X for a REFCLK pin (12) Refer to Table 4-20 on page 4-36 for the input jitter specifications for the reference clock. - 4-4 Stratix II GX Device Handbook, Volume 1 - 3.3 - - 3.3 - - Altera Corporation June 2009 DC and Switching Characteristics Table 4-6. Stratix II GX Transceiver Block AC Specification (Part 2 of 6) Symbol / Description Conditions -3 Speed Commercial Speed Grade -4 Speed Commercial and Industrial Speed Grade -5 Speed Commercial Speed Grade Unit Min Typ Max Min Typ Max Min Typ Max -0.3 - - -0.3 - - -0.3 - - V - 0.2 - - 0.2 - - 0.2 - UI Duty cycle 40 - 60 40 - 60 40 - 60 % Peak-to-peak differential input voltage 200 - 2000 200 - 2000 200 - 2000 mV 30 0 to -0.5% - 33 0 to -0.5% 30 0 to -0.5% - 33 0 to -0.5% 30 0 to -0.5% - 33 0 to -0.5% kHz Absolute VM I N for a REFCLK pin (12) Rise/fall time Spreadspectrum clocking On-chip termination resistors 115 20% 115 20% 115 20% VI C M (AC coupled) (12) 1200 5% 1200 5% 1200 5% mV VI C M (DC coupled) (4) 0.25 Rref - 0.55 0.25 2000 1% - 0.55 0.25 2000 1% - 0.55 V 2000 1% Transceiver Clocks Calibration block clock frequency 10 - 125 10 - 125 10 - 125 MHz Calibration block minimum power-down pulse width 30 - - 30 - - 30 - - ns Time taken for one-time calibration - - 8 - - 8 - - 8 ms PCI Express Receiver Detect - 125 - - 125 - - 125 - MHz Adaptive Equalization (AEQ) 2.5 - 125 2.5 - 125 - - - MHz fixedclk clock frequency Altera Corporation June 2009 4-5 Stratix II GX Device Handbook, Volume 1 Operating Conditions Table 4-6. Stratix II GX Transceiver Block AC Specification (Part 3 of 6) Symbol / Description Conditions reconfig_c lk clock -3 Speed Commercial Speed Grade -4 Speed Commercial and Industrial Speed Grade -5 Speed Commercial Speed Grade Min Typ Max Min Typ Max Min Typ Max 2.5 - 50 2.5 - 50 2.5 - 50 100 - - 100 - - 100 - - Unit MHz frequency Transceiver block minimum power-down pulse width ns Receiver Data rate 600 - 6375 600 - 5000 600 - 4250 Mbps Absolute VM A X for a receiver pin (1) - - 2.0 - - 2.0 - - 2.0 V Absolute VM I N for a receiver pin -0.4 - - -0.4 - - -0.4 - - V Maximum peak-to-peak differential input voltage VI D (diff p-p) VC M = 0.85 V - - 3.3 - - 3.3 - - 3.3 V Minimum peak-to-peak differential input voltage VI D (diff p-p) VC M = 0.85 V DC Gain = 3 dB 160 - - 160 - - 160 - - mV VI C M VI C M = 0.85 V setting 85010% 85010% 85010% mV VI C M = 1.2 V setting (11) 120010% 120010% 120010% mV 100 setting 10015% 10015% 10015% 120 setting 12015% 12015% 12015% 150 setting 15015% 15015% 15015% On-chip termination resistors Bandwidth at 6.375 Gbps BW = Low - 20 - - - - - - - MHz BW = Med - 35 - - - - - - - MHz BW = High - 45 - - - - - - - MHz 4-6 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-6. Stratix II GX Transceiver Block AC Specification (Part 4 of 6) Symbol / Description Bandwidth at 3.125 Gbps Bandwidth at 2.5 Gbps Conditions -3 Speed Commercial Speed Grade -4 Speed Commercial and Industrial Speed Grade -5 Speed Commercial Speed Grade Unit Min Typ Max Min Typ Max Min Typ Max BW = Low - 30 - - 30 - - 30 - MHz BW = Med - 40 - - 40 - - 40 - MHz BW = High - 50 - - 50 - - 50 - MHz BW = Low - 35 - - 35 - - 35 - MHz BW = Med - 50 - - 50 - - 50 - MHz BW = High - 60 - - 60 - - 60 - MHz Return loss differential mode 100 MHz to 2.5 GHz (XAUI): -10 dB 50 MHz to 1.25 GHz (PCI-E): -10 dB 100 MHz to 4.875 GHz (OIF/CEI): -8dB 4.875 GHz to 10 GHz (OIF/CEI): 16.6 dB/decade slope Return loss common mode 100 MHz to 2.5 GHz (XAUI): -6 dB 50 MHz to 1.25 GHz (PCI-E): -6 dB 100 MHz to 4.875 GHz (OIF/CEI): -6dB 4.875 GHz to 10 GHz (OIF/CEI): 16.6 dB/decade slope Programmable PPM detector (2) 62.5, 100, 125, 200, 250, 300, 500, 1000 62.5, 100, 125, 200, 250, 300, 500, 1000 62.5, 100, 125, 200, 250, 300, 500, 1000 ppm Run length (3), (9) 80 80 80 UI Programmable equalization - - 16 - - 16 - - 16 dB 65 - 175 65 - 175 65 - 175 mV CDR LTR TIme (5), (9) - - 75 - - 75 - - 75 us CDR Minimum T1b (6), (9) 15 - - 15 - - 15 - - us LTD lock time (7), (9) 0 100 4000 0 100 4000 0 100 4000 ns Data lock time from - - 4 - - 4 - - 4 us Signal detect/loss threshold (4) rx_freqloc ked (8), (9) Programmable DC gain 0, 3, 6 0, 3, 6 0, 3, 6 Transmitter Altera Corporation June 2009 4-7 Stratix II GX Device Handbook, Volume 1 dB Operating Conditions Table 4-6. Stratix II GX Transceiver Block AC Specification (Part 5 of 6) Symbol / Description Conditions Data rate VO C M On-chip termination resistors -3 Speed Commercial Speed Grade -4 Speed Commercial and Industrial Speed Grade -5 Speed Commercial Speed Grade Min Typ Max Min Typ Max Min Typ Max 600 - 6375 600 - 5000 600 - 4250 Unit Mbps VO C M = 0.6 V setting 58010% 58010% 58010% mV VO C M = 0.7 V setting 68010% 68010% 68010% mV 100 setting 10810% 10810% 10810% 120 setting 12510% 12510% 12510% 150 setting 15210% 15210% 15210% Return loss differential mode 312 MHz to 625 MHz (XAUI): -10 dB 625 MHz to 3.125 GHz (XAUI): -10 dB/decade slope 50 MHz to 1.25 GHz (PCI-E): -10dB 100 MHz to 4.875 GHz (OIF/CEI): -8db 4.875 GHz to 10 GHz (OIF/CEI): 16.6 dB/decade slope Return loss common mode 50 MHz to 1.25 GHz (PCI-E): -6dB 100 MHz to 4.875 GHz (OIF/CEI): -6db 4.875 GHz to 10 GHz (OIF/CEI): 16.6 dB/decade slope Rise time 35 - 65 35 - 65 35 - 65 ps Fall time 35 - 65 35 - 65 35 - 65 ps - - 15 - - 15 - - 15 ps Intratransceiver block skew (x4) - - 100 - - 100 - - 100 ps Intertransceiver block skew (x8) - - 300 - - 300 - - 300 ps VCO frequency range (low gear) 500 - 1562.5 500 - 1562.5 500 - 1562.5 MHz VCO frequency range (high gear) 1562.5 3187.5 1562.5 2500 1562. 5 - 2125 MHz Intra differential pair skew VOD = 800 mV TXPLL (TXPLL0 and TXPLL1) 4-8 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-6. Stratix II GX Transceiver Block AC Specification (Part 6 of 6) Symbol / Description Bandwidth at 6.375 Gbps Bandwidth at 3.125 Gbps Bandwidth at 2.5 Gbps Conditions BW = Low -3 Speed Commercial Speed Grade -4 Speed Commercial and Industrial Speed Grade -5 Speed Commercial Speed Grade Min Typ Max Min Typ Max Min Typ Max - 2 - - - - - - - Unit MHz BW = Med - 3 - - - - - - - MHz BW = High - 7 - - - - - - - MHz BW = Low - 3 - - 3 - - 3 - MHz BW = Med - 5 - - 5 - - 5 - MHz BW = High - 9 - - 9 - - 9 - MHz BW = Low - 1 - - 1 - - 1 - MHz BW = Med - 2 - - 2 -- - 2 - MHz BW = High - 4 - - 4 - - 4 - MHz - - 100 - - 100 - - 100 us 25 - 250 25 - 250 25 - 200 MHz TX PLL lock time from gxb_ powerdown deassertion (9), (10) PLD-Transceiver Interface Interface speed Digital Reset Pulse Width Minimum is 2 parallel clock cycles Notes to Table 4-6: (1) (2) (3) (4) (5) (6) The device cannot tolerate prolonged operation at this absolute maximum. Refer to Figure 4-5 for more information. The rate matcher supports only up to +/-300 ppm. This parameter is measured by embedding the run length data in a PRBS sequence. This feature is only available in PCI-Express (PIPE) mode. Time taken to rx_pll_locked goes high from rx_analogreset deassertion. Refer to Figure 4-1. This is how long GXB needs to stay in LTR mode after rx_pll_locked is asserted and before rx_locktodata is asserted in manual mode. Refer to Figure 4-1. (7) Time taken to recover valid data from GXB after rx_locktodata signal is asserted in manual mode. Measurement results are based on PRBS31, for native data rates only. Refer to Figure 4-1. (8) Time taken to recover valid data from GXB after rx_freqlocked signal goes high in automatic mode. Measurement results are based on PRBS31, for native data rates only. Refer to Figure 4-1. (9) Please refer to the Protocol Characterization documents for lock times specific to the protocols. (10) Time taken to lock TX PLL from gxb_powerdown deassertion. (11) The 1.2 V RX VICM setting is intended for DC-coupled LVDS links. (12) For AC-coupled links, the on-chip biasing circuit is switched off before and during configuration. Make sure that input specifications are not violated during this period. Altera Corporation June 2009 4-9 Stratix II GX Device Handbook, Volume 1 Operating Conditions Figure 4-1 shows the lock time parameters in manual mode, Figure 4-2 shows the lock time parameters in automatic mode. 1 LTD = Lock to data LTR = Lock to reference clock Figure 4-1. Lock Time Parameters for Manual Mode r x_analogreset CDR status LTR LTD r x_pll_locked r x_locktodata Invalid Data Valid data r x_dataout CDR LTR Time LTD lock time CDR Minimum T1b 4-10 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Figure 4-2. Lock Time Parameters for Automatic Mode LTR CDR status LTD r x_freqlocked Invalid r x_dataout Valid data data Data lock time from rx_freqlocked Figures 4-3 and 4-4 show differential receiver input and transmitter output waveforms, respectively. Figure 4-3. Receiver Input Waveform Single-Ended Waveform Positive Channel (p) VID Negative Channel (n) VCM Ground Differential Waveform VID (diff peak-peak) = 2 x VID (single-ended) VID p-n=0V VID Altera Corporation June 2009 4-11 Stratix II GX Device Handbook, Volume 1 Operating Conditions Figure 4-4. Transmitter Output Waveform Single-Ended Waveform Positive Channel (p) VOD Negative Channel (n) VCM Ground Differential Waveform VOD (diff peak-peak) = 2 x VOD (single-ended) VOD p-n=0V VOD Figure 4-5. Maximum Receiver Input Pin Voltage Single-Ended Waveform Positive Channel (p) V(single-ended p-p)max = 3.3 V/2 Negative Channel (n) VCM = 0.85 V Ground VMAX = VCM + V(single-ended p-p)max = 0.85 + 0.825 = 1.675 V (1) 2 Note to Figure 4-5: (1) The absolute VMAX that the receiver input pins can tolerate is 2 V. Tables 4-7 through 4-12 show the typical VOD for data rates from 600 Mbps to 6.375 Gbps. The specification is for measurement at the package ball. Table 4-7. Typical VOD Setting, TX Term = 100 Note (1) VC C H TX = 1.5 V VOD Typical (mV) VOD Setting (mV) 200 400 600 800 1000 1200 1400 220 430 625 830 1020 1200 1350 Note to Table 4-7: (1) Applicable to data rates from 600 Mbps to 6.375 Gbps. Specification is for measurement at the package ball. 4-12 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-8. Typical VOD Setting, TX Term = 120 Note (1) VC C H TX = 1.5 V VOD Typical (mV) VOD Setting (mV) 240 480 720 960 1200 260 510 750 975 1200 Note to Table 4-8: (1) Applicable to data rates from 600 Mbps to 6.375 Gbps. Specification is for measurement at the package ball. Table 4-9. Typical VOD Setting, TX Term = 150 Note (1) VC C H TX = 1.5 V VOD Typical (mV) VOD Setting (mV) 300 600 900 1200 325 625 920 1200 Note to Table 4-9: (1) Applicable to data rates from 600 Mbps to 6.375 Gbps. Specification is for measurement at the package ball. Table 4-10. Typical VOD Setting, TX Term = 100 Note (1) VC C H TX = 1.2 V VOD Typical (mV) VOD Setting (mV) 320 480 640 800 960 344 500 664 816 960 Note to Table 4-10: (1) Altera Corporation June 2009 Applicable to data rates from 600 Mbps to 3.125 Gbps. Specification is for measurement at the package ball. 4-13 Stratix II GX Device Handbook, Volume 1 Operating Conditions Table 4-11. Typical VOD Setting, TX Term = 120 Note (1) VC C H TX = 1.2 V VOD Setting (mV) VOD Typical (mV) 192 384 576 768 960 210 410 600 780 960 Note to Table 4-11: (1) Applicable to data rates from 600 Mbps to 3.125 Gbps. Specification is for measurement at the package ball. Table 4-12. Typical VOD Setting, TX Term = 150 Note (1) VC C H TX = 1.2 V VOD Setting (mV) VOD Typical (mV) 240 480 720 960 260 500 730 960 Note to Table 4-12: (1) Applicable to data rates from 600 Mbps to 3.125 Gbps. Specification is for measurement at the package ball. Tables 4-13 through 4-18 show the typical first post-tap pre-emphasis. Table 4-13. Typical Pre-Emphasis (First Post-Tap), Note (1) (Part 1 of 2) VC C H TX = 1.5 V VOD Setting (mV) First Post Tap Pre-Emphasis Level 1 2 3 4 5 6 7 8 9 457% 10 11 12 TX Term = 100 400 62% 112% 184% 600 24% 31% 56% 86% 800 20% 122% 168% 230% 329% 35% 53% 73% 96% 123% 156% 196% 237% 312% 387% 1000 23% 36% 49% 64% 79% 97% 118% 141% 165% 200% 1200 17% 25% 35% 45% 56% 68% 82% 95% 110% 125% 4-14 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-13. Typical Pre-Emphasis (First Post-Tap), Note (1) (Part 2 of 2) VC C H TX = 1.5 V VOD Setting (mV) First Post Tap Pre-Emphasis Level 1 2 3 1400 4 5 6 7 8 9 10 11 12 20% 26% 33% 41% 51% 58% 67% 77% 86% Note to Table 4-13: (1) Applicable to data rates from 600 Mbps to 6.375 Gbps. Specification is for measurement at the package ball. Table 4-14. Typical Pre-Emphasis (First Post-Tap), Note (1) VC C H TX = 1.5 V VOD Setting (mV) First Post Tap Pre-Emphasis Level 1 2 3 4 5 6 7 8 9 10 11 12 179% 226% 280% 405% 477% TX Term = 120 240 45% 480 41% 76% 114% 166% 257% 355% 720 23% 38% 55% 84% 108% 137% 960 15% 1200 24% 36% 47% 64% 80% 97% 122% 140% 170% 196% 18% 22% 30% 41% 51% 63% 77% 86% 98% 116% Note to Table 4-14: (1) Applicable to data rates from 600 Mbps to 6.375 Gbps. Specification is for measurement at the package ball. Table 4-15. Typical Pre-Emphasis (First Post-Tap), Note (1) (Part 1 of 2) VC C H TX = 1.5 V VOD Setting (mV) First Post Tap Pre-Emphasis Level 1 2 3 4 5 6 7 8 9 10 11 12 TX Term = 150 300 32% Altera Corporation June 2009 85% 4-15 Stratix II GX Device Handbook, Volume 1 Operating Conditions Table 4-15. Typical Pre-Emphasis (First Post-Tap), Note (1) (Part 2 of 2) VC C H TX = 1.5 V VOD Setting (mV) First Post Tap Pre-Emphasis Level 1 2 3 4 5 6 7 8 9 600 33% 53% 80% 115% 157% 195% 294% 386% 900 19% 28% 38% 56% 70% 86% 113% 17% 22% 31% 40% 52% 62% 1200 10 11 12 133% 168% 196% 242% 75% 86% 96% 112% Note to Table 4-15: (1) Applicable to data rates from 600 Mbps to 6.375 Gbps. Specification is for measurement at the package ball. Table 4-16. Typical Pre-Emphasis (First Post-Tap), Note (1) VC C H TX = 1.2 V VOD Setting (mV) First Post Tap Pre-Emphasis Level 1 2 3 4 5 6 7 8 9 10 11 12 24% 61% 114% 480 31% 55% 86% 121% 170% 232% 333% 640 20% 35% 54% 72% 95% 124% 157% 195% 233% 307% 373% 800 23% 36% 49% 64% 960 18% 25% 35% 44% 81% 97% 117% 140% 161% 195% 57% 69% 82% 94% 108% 127% TX Term = 100 320 Note to Table 4-16: (1) Applicable to data rates from 600 Mbps to 3.125 Gbps. Specification is for measurement at the package ball. 4-16 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-17. Typical Pre-Emphasis (First Post-Tap), Note (1) VC C H TX = 1.2 V VOD Setting (mV) First Post Tap Pre-Emphasis Level 1 2 3 4 5 6 7 8 9 10 11 12 TX Term = 120 192 45% 384 41% 76% 114% 166% 257% 355% 576 23% 38% 55% 84% 108% 137% 179% 226% 280% 405% 477% 768 15% 24% 36% 47% 64% 80% 97% 122% 140% 170% 196% 18% 22% 30% 41% 51% 63% 77% 86% 98% 116% 960 Note to Table 4-17: (1) Applicable to data rates from 600 Mbps to 3.125 Gbps. Specification is for measurement at the package ball. Table 4-18. Typical Pre-Emphasis (First Post-Tap), Note (1) VC C H TX = 1.2 V VOD Setting (mV) First Post Tap Pre-Emphasis Level 1 2 31% 85% 3 4 5 6 7 8 9 10 11 12 TX Term = 150 240 480 32% 52% 78% 112% 152% 195% 275% 720 19% 28% 37% 56% 68% 86% 108% 133% 169% 194% 239% 17% 22% 30% 39% 51% 59% 75% 85% 94% 109% 960 Note to Table 4-18: (1) Applicable to data rates from 600 Mbps to 3.125 Gbps. Specification is for measurement at the package ball. Altera Corporation June 2009 4-17 Stratix II GX Device Handbook, Volume 1 Operating Conditions Table 4-19 shows the Stratix II GX transceiver block AC specifications. Table 4-19. Stratix II GX Transceiver Block AC Specification Notes (1), (2), (3) (Part 1 of 19) Symbol/ Description Conditions -3 Speed Commercial Speed Grade Min -4 Speed Commercial and Industrial Speed Grade -5 Speed Commercial Speed Grade Typ Max Min Typ Max Min Typ Max Unit SONET/SDH Transmit Jitter Generation (7) Peak-to-peak jitter REFCLK = at 622.08 Mbps 77.76 MHz Pattern = PRBS23 VOD = 800 mV No Pre-emphasis - - 0.1 - - 0.1 - - 0.1 UI RMS jitter at 622.08 Mbps REFCLK = 77.76 MHz Pattern = PRBS23 VOD = 800 mV No Pre-emphasis - - 0.01 - - 0.01 - - 0.01 UI Peak-to-peak jitter REFCLK = at 2488.32 Mbps 155.52 MHz Pattern = PRBS23 VOD = 800 mV No Pre-emphasis - - 0.1 - - 0.1 - - 0.1 UI RMS jitter at 2488.32 Mbps - - 0.01 - - 0.01 - - 0.01 UI REFCLK = 155.52 MHz Pattern = PRBS23 VOD = 800 mV No Pre-emphasis 4-18 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-19. Stratix II GX Transceiver Block AC Specification Notes (1), (2), (3) (Part 2 of 19) Symbol/ Description Conditions -3 Speed Commercial Speed Grade Min Typ Max -4 Speed Commercial and Industrial Speed Grade Min Typ Max -5 Speed Commercial Speed Grade Min Typ Unit Max SONET/SDH Receiver Jitter Tolerance (7) Jitter tolerance at 622.08 Mbps Jitter tolerance at 2488.32 MBps Altera Corporation June 2009 Jitter frequency = 0.03 KHz Pattern = PRBS23 No Equalization DC Gain = 0 dB > 15 > 15 > 15 UI Jitter frequency = 25 KHZ Pattern = PRBS23 No Equalization DC Gain = 0 dB > 1.5 > 1.5 > 1.5 UI Jitter frequency = 250 KHz Pattern = PRBS23 No Equalization DC Gain = 0 dB > 0.15 > 0.15 > 0.15 UI Jitter frequency = 0.06 KHz Pattern = PRBS23 No Equalization DC Gain = 0 dB > 15 > 15 > 15 UI Jitter frequency = 100 KHZ Pattern = PRBS23 No Equalization DC Gain = 0 dB > 1.5 > 1.5 > 1.5 UI Jitter frequency = 1 MHz Pattern = PRBS23 No Equalization DC Gain = 0 dB > 0.15 > 0.15 > 0.15 UI Jitter frequency = 10 MHz Pattern = PRBS23 No Equalization DC Gain = 0 dB > 0.15 > 0.15 > 0.15 UI 4-19 Stratix II GX Device Handbook, Volume 1 Operating Conditions Table 4-19. Stratix II GX Transceiver Block AC Specification Notes (1), (2), (3) (Part 3 of 19) Symbol/ Description Conditions -3 Speed Commercial Speed Grade Min Typ -4 Speed Commercial and Industrial Speed Grade -5 Speed Commercial Speed Grade Max Min Typ Max Min Typ Max Unit Fibre Channel Transmit Jitter Generation (8), (17) Total jitter FC-1 REFCLK = 106.25 MHz Pattern = CRPAT VOD = 800 mV No Pre-emphasis - - 0.23 - - 0.23 - - 0.23 UI Deterministic jitter FC-1 REFCLK = 106.25 MHz Pattern = CRPAT VOD = 800 mV No Pre-emphasis - - 0.11 - - 0.11 - - 0.11 UI Total jitter FC-2 REFCLK = 106.25 MHz Pattern = CRPAT VOD = 800 mV No Pre-emphasis - - 0.33 - - 0.33 - - 0.33 UI Deterministic jitter FC-2 REFCLK = 106.25 MHz Pattern = CRPAT VOD = 800 mV No Pre-emphasis - - 0.2 - - 0.2 - - 0.2 UI Total jitter FC-4 REFCLK = 106.25 MHz Pattern = CRPAT VOD = 800 mV No Pre-emphasis - - 0.52 - - 0.52 - - 0.52 UI Deterministic jitter FC-4 REFCLK = 106.25 MHz Pattern = CRPAT VOD = 800 mV No Pre-emphasis - - 0.33 - - 0.33 - - 0.33 UI Fibre Channel Receiver Jitter Tolerance (8), (18) Deterministic jitter FC-1 Pattern = CJTPAT No Equalization DC Gain = 0 dB > 0.37 > 0.37 > 0.37 UI Random jitter FC1 Pattern = CJTPAT No Equalization DC Gain = 0 dB > 0.31 > 0.31 > 0.31 UI 4-20 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-19. Stratix II GX Transceiver Block AC Specification Notes (1), (2), (3) (Part 4 of 19) Symbol/ Description Conditions -3 Speed Commercial Speed Grade Min Typ Sinusoidal jitter FC-1 Fc/25000 Fc/1667 > 0.1 Deterministic jitter FC-2 Pattern = CJTPAT No Equalization DC Gain = 0 dB > 0.33 Random jitter FC2 Pattern = CJTPAT No Equalization DC Gain = 0 dB > 0.29 Sinusoidal jitter FC-2 Fc/25000 > 1.5 Fc/1667 > 0.1 Deterministic jitter FC-4 Pattern = CJTPAT No Equalization DC Gain = 0 dB > 0.33 Random jitter FC4 Pattern = CJTPAT No Equalization DC Gain = 0 dB > 0.29 Sinusoidal jitter FC-4 Fc/25000 Fc/1667 Max -4 Speed Commercial and Industrial Speed Grade Min > 1.5 Typ Max -5 Speed Commercial Speed Grade Min > 1.5 Typ Unit Max > 1.5 UI > 0.1 > 0.1 UI > 0.33 > 0.33 UI > 0.29 > 0.29 UI > 1.5 > 1.5 UI > 0.1 > 0.1 UI > 0.33 > 0.33 UI > 0.29 > 0.29 UI > 1.5 > 1.5 > 1.5 UI > 0.1 > 0.1 > 0.1 UI XAUI Transmit Jitter Generation (9) Total jitter at 3.125 Gbps REFCLK = 156.25 MHz Pattern = CJPAT VOD = 1200 mV No Pre-emphasis - - 0.3 - - 0.3 - - 0.3 UI Deterministic jitter at 3.125 Gbps REFCLK = 156.25 MHz Pattern = CJPAT VOD = 1200 mV No Pre-emphasis - - 0.17 - - 0.17 - - 0.17 UI XAUI Receiver Jitter Tolerance (9) Total jitter Pattern = CJPAT No Equalization DC Gain = 3 dB > 0.65 > 0.65 > 0.65 UI Deterministic jitter Pattern = CJPAT No Equalization DC Gain = 3 dB > 0.37 > 0.37 > 0.37 UI Altera Corporation June 2009 4-21 Stratix II GX Device Handbook, Volume 1 Operating Conditions Table 4-19. Stratix II GX Transceiver Block AC Specification Notes (1), (2), (3) (Part 5 of 19) Symbol/ Description Conditions -3 Speed Commercial Speed Grade Min Typ Max -4 Speed Commercial and Industrial Speed Grade Min Typ Max -5 Speed Commercial Speed Grade Min Typ Unit Max Peak-to-peak jitter Jitter frequency = 22.1 KHz > 8.5 > 8.5 > 8.5 UI Peak-to-peak jitter Jitter frequency = 1.875 MHz > 0.1 > 0.1 > 0.1 UI Peak-to-peak jitter Jitter frequency = 20 MHz > 0.1 > 0.1 > 0.1 UI PCI Express Transmit Jitter Generation (10) Total jitter at 2.5 Gbps Compliance pattern VOD = 800 mV Pre-emphasis (1st post-tap) = Setting 5 - - 0.25 - - 0.25 - - 0.25 UI PCI Express Receiver Jitter Tolerance (10) Total jitter at 2.5 Gbps > 0.6 Compliance pattern No Equalization DC gain = 3 dB > 0.6 > 0.6 UI Serial RapidIO Transmit Jitter Generation (11) Deterministic Jitter Data Rate = 1.25, (peak-to-peak) 2.5, 3.125 Gbps REFCLK = 125 MHz Pattern = CJPAT VOD = 800 mV No Pre-emphasis - - 0.17 - - 0.17 - - 0.17 UI Total Jitter (peak-to-peak) - - 0.35 - - 0.35 - - 0.35 UI Data Rate = 1.25, 2.5, 3.125 Gbps REFCLK = 125 MHz Pattern = CJPAT VOD = 800 mV No Pre-emphasis 4-22 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-19. Stratix II GX Transceiver Block AC Specification Notes (1), (2), (3) (Part 6 of 19) Symbol/ Description Conditions -3 Speed Commercial Speed Grade Min Typ Max -4 Speed Commercial and Industrial Speed Grade Min Typ Max -5 Speed Commercial Speed Grade Min Typ Unit Max Serial RapidIO Receiver Jitter Tolerance (11) Deterministic Jitter Data Rate = 1.25, 2.5, 3.125 Gbps Tolerance (peak-to-peak) REFCLK = 125 MHz Pattern = CJPAT Equalizer Setting = 0 for 1.25 Gbps Equalizer Setting = 6 for 2.5 Gbps Equalizer Setting = 6 for 3.125 Gbps > 0.37 > 0.37 > 0.37 UI Data Rate = 1.25, 2.5, 3.125 Gbps REFCLK = 125 MHz Pattern = CJPAT Equalizer Setting = 0 for 1.25 Gbps Equalizer Setting = 6 for 2.5 Gbps Equalizer Setting = 6 for 3.125 Gbps > 0.55 > 0.55 > 0.55 UI Combined Deterministic and Random Jitter Tolerance (peak-to-peak) Altera Corporation June 2009 4-23 Stratix II GX Device Handbook, Volume 1 Operating Conditions Table 4-19. Stratix II GX Transceiver Block AC Specification Notes (1), (2), (3) (Part 7 of 19) Symbol/ Description Conditions -3 Speed Commercial Speed Grade Min Sinusoidal Jitter Tolerance (peak-to-peak) Typ Max -4 Speed Commercial and Industrial Speed Grade Min Typ Max -5 Speed Commercial Speed Grade Min Typ Unit Max Jitter Frequency = 22.1 KHz Data Rate = 1.25, 2.5, 3.125 Gbps REFCLK = 125 MHz Pattern = CJPAT Equalizer Setting = 0 for 1.25 Gbps Equalizer Setting = 6 for 2.5 Gbps Equalizer Setting = 6 for 3.125 Gbps > 8.5 > 8.5 > 8.5 UI Jitter Frequency = 1.875 MHz Data Rate = 1.25, 2.5, 3.125 Gbps REFCLK = 125 MHz Pattern = CJPAT Equalizer Setting = 0 for 1.25 Gbps Equalizer Setting = 6 for 2.5 Gbps Equalizer Setting = 6 for 3.125 Gbps > 0.1 > 0.1 > 0.1 UI Jitter Frequency = 20 MHz Data Rate = 1.25, 2.5, 3.125 Gbps REFCLK = 125 MHz Pattern = CJPAT Equalizer Setting = 0 for 1.25 Gbps Equalizer Setting = 6 for 2.5 Gbps Equalizer Setting = 6 for 3.125 Gbps > 0.1 > 0.1 > 0.1 UI 4-24 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-19. Stratix II GX Transceiver Block AC Specification Notes (1), (2), (3) (Part 8 of 19) Symbol/ Description Conditions -3 Speed Commercial Speed Grade -4 Speed Commercial and Industrial Speed Grade -5 Speed Commercial Speed Grade Unit Min Typ Max Min Typ Max Min Typ Max Deterministic Jitter Data Rate = (peak-to-peak) 1.25 Gbps REFCLK = 125 MHz Pattern = CRPAT VOD = 1400 mV No Pre-emphasis - - 0.14 - - 0.14 - - 0.14 UI Total Jitter (peak-to-peak) - - 0.279 - - 0.279 - - 0.279 UI GIGE Transmit Jitter Generation (12) Data Rate = 1.25 Gbps REFCLK = 125 MHz Pattern = CRPAT VOD = 1400 mV No Pre-emphasis GIGE Receiver Jitter Tolerance (12) Deterministic Jitter Data Rate = 1.25 Gbps Tolerance (peak-to-peak) REFCLK = 125 MHz Pattern = CJPAT No Equalization > 0.4 > 0.4 > 0.4 UI Data Rate = 1.25 Gbps REFCLK = 125 MHz Pattern = CJPAT No Equalization > 0.66 > 0.66 > 0.66 UI Combined Deterministic and Random Jitter Tolerance (peak-to-peak) HiGig Transmit Jitter Generation (4), (13) Deterministic Jitter Data Rate = (peak-to-peak) 3.75 Gbps REFCLK = 187.5 MHz Pattern = CJPAT VOD = 1200 mV No Pre-emphasis - - 0.17 - UI Total Jitter (peak-to-peak) - - 0.35 - UI Altera Corporation June 2009 Data Rate = 3.75 Gbps REFCLK = 187.5 MHz Pattern = CJPAT VOD = 1200 mV No Pre-emphasis 4-25 Stratix II GX Device Handbook, Volume 1 Operating Conditions Table 4-19. Stratix II GX Transceiver Block AC Specification Notes (1), (2), (3) (Part 9 of 19) Symbol/ Description Conditions -3 Speed Commercial Speed Grade Min Typ Max -4 Speed Commercial and Industrial Speed Grade Min Typ Max -5 Speed Commercial Speed Grade Min Typ Unit Max HiGig Receiver Jitter Tolerance (13) Deterministic Jitter Data Rate = 3.75 Gbps Tolerance (peak-to-peak) REFCLK = 187.5 MHz Pattern = CJPAT No Equalization DC Gain = 3 dB > 0.37 - - UI Data Rate = 3.75 Gbps REFCLK = 187.5 MHz Pattern = CJPAT No Equalization DC Gain = 3 dB > 0.65 - - UI Jitter Frequency = 22.1 KHz Data Rate = 3.75 Gbps REFCLK = 187.5 MHz Pattern = CJPAT No Equalization DC Gain = 3 dB > 8.5 - - UI Combined Deterministic and Random Jitter Tolerance (peak-to-peak) 4-26 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-19. Stratix II GX Transceiver Block AC Specification Notes (1), (2), (3) (Part 10 of 19) Symbol/ Description Conditions -3 Speed Commercial Speed Grade Min Sinusoidal Jitter Tolerance (peak-to-peak) Typ Max -4 Speed Commercial and Industrial Speed Grade Min Typ Max -5 Speed Commercial Speed Grade Min Typ Unit Max Jitter Frequency = 1.875 MHz Data Rate = 3.75 Gbps REFCLK = 187.5 MHz Pattern = CJPAT No Equalization DC Gain = 3 dB > 0.1 - - UI Jitter Frequency = 20 MHz Data Rate = 3.75 Gbps REFCLK = 187.5 MHz Pattern = CJPAT No Equalization DC Gain = 3 dB > 0.1 - - UI (OIF) CEI Transmitter Jitter Generation (14) Total Jitter (peak-to-peak) Data Rate = 6.375 Gbps REFCLK = 318.75 MHz Pattern = PRBS15 Vod=1000 mV (5) No Pre-emphasis BER = 10-12 0.3 N/A N/A UI (OIF) CEI Receiver Jitter Tolerance (14) Deterministic Jitter Data Rate = 6.375 Gbps Tolerance Pattern = PRBS31 (peak-to-peak) Equalizer Setting = 15 DC Gain = 0 dB BER = 10-12 Altera Corporation June 2009 > 0.675 N/A N/A UI 4-27 Stratix II GX Device Handbook, Volume 1 Operating Conditions Table 4-19. Stratix II GX Transceiver Block AC Specification Notes (1), (2), (3) (Part 11 of 19) Symbol/ Description Conditions -3 Speed Commercial Speed Grade Min Combined Deterministic and Random Jitter Tolerance (peak-to-peak) Sinusoidal Jitter Tolerance (peak-to-peak) Typ Max -4 Speed Commercial and Industrial Speed Grade Min Typ Max -5 Speed Commercial Speed Grade Min Typ Unit Max Data Rate = 6.375 Gbps Pattern = PRBS31 Equalizer Setting = 15 DC Gain = 0 dB BER = 10-12 > 0.988 N/A N/A UI Jitter Frequency = 38.2 KHz Data Rate = 6.375 Gbps Pattern = PRBS31 Equalizer Setting = 15 DC Gain = 0 dB BER = 10-12 >5 N/A N/A UI Jitter Frequency = 3.82 MHz Data Rate = 6.375 Gbps Pattern = PRBS31 Equalizer Setting = 15 DC Gain = 0 dB BER = 10-12 > 0.05 N/A N/A UI Jitter Frequency = 20 MHz Data Rate = 6.375 Gbps Pattern = PRBS31 Equalizer Setting = 15 DC Gain = 0 dB BER = 10-12 > 0.05 N/A N/A UI 4-28 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-19. Stratix II GX Transceiver Block AC Specification Notes (1), (2), (3) (Part 12 of 19) Symbol/ Description Conditions -3 Speed Commercial Speed Grade Min Typ Max -4 Speed Commercial and Industrial Speed Grade Min Typ Max -5 Speed Commercial Speed Grade Min Typ Unit Max CPRI Transmitter Jitter Generation (15) Deterministic Jitter Data Rate = (peak-to-peak) 614.4 Mbps, 1.2288 Gbps, 2.4576 Gbps REFCLK = 61.44 MHz for 614.4 Mbps and 1.2288 Gbps REFCLK = 122.88 MHz for 2.4576 Gbps Pattern = CJPAT Vod = 1400 mV No Pre-emphasis 0.14 0.14 N/A UI Total Jitter (peak-to-peak) 0.279 0.279 N/A UI Altera Corporation June 2009 Data Rate = 614.4 Mbps, 1.2288 Gbps, 2.4576 Gbps REFCLK = 61.44 MHz for 614.4 Mbps and 1.2288 Gbps REFCLK = 122.88 MHz for 2.4576 Gbps Pattern = CJPAT Vod = 1400 mV No Pre-emphasis 4-29 Stratix II GX Device Handbook, Volume 1 Operating Conditions Table 4-19. Stratix II GX Transceiver Block AC Specification Notes (1), (2), (3) (Part 13 of 19) Symbol/ Description Conditions -3 Speed Commercial Speed Grade Min Typ Max -4 Speed Commercial and Industrial Speed Grade Min Typ Max -5 Speed Commercial Speed Grade Min Typ Unit Max CPRI Receiver Jitter Tolerance (15) Deterministic Jitter Data Rate = 614.4 Mbps, Tolerance 1.2288 Gbps, (peak-to-peak) 2.4576 Gbps REFCLK = 61.44 MHz for 614.4 Mbps REFCLK = 122.88 MHz for 1.2288 Gbps and 2.4576 Gbps Pattern = CJPAT Equalizer Setting = 6 DC Gain = 0 dB > 0.4 > 0.4 N/A UI Data Rate = 614.4 Mbps, 1.2288 Gbps, 2.4576 Gbps REFCLK = 61.44 MHz for 614.4 Mbps REFCLK = 122.88 MHz for 1.2288 Gbps and 2.4576 Gbps Pattern = CJPAT Equalizer Setting = 6 DC Gain = 0 dB > 0.66 > 0.66 N/A UI Combined Deterministic and Random Jitter Tolerance (peak-to-peak) 4-30 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-19. Stratix II GX Transceiver Block AC Specification Notes (1), (2), (3) (Part 14 of 19) Symbol/ Description Conditions -3 Speed Commercial Speed Grade Min Sinusoidal Jitter Tolerance (peak-to-peak) (6) Altera Corporation June 2009 Typ Max -4 Speed Commercial and Industrial Speed Grade Min Typ Max -5 Speed Commercial Speed Grade Min Typ Unit Max Jitter Frequency = 22.1 KHz Data Rate = 614.4 Mbps, 1.2288 Gbps, 2.4576 Gbps REFCLK = 61.44 MHz for 614.4 Mbps REFCLK = 122.88 MHz for 1.2288 Gbps and 2.4576 Gbps Pattern = CJPAT Equalizer Setting = 6 DC Gain = 0 dB > 8.5 > 8.5 N/A UI Jitter Frequency = 1.875 MHz Data Rate = 614.4 Mbps, 1.2288 Gbps, 2.4576 Gbps REFCLK = 61.44 MHz for 614.4 Mbps REFCLK = 122.88 MHz for 1.2288 Gbps and 2.4576 Gbps Pattern = CJPAT Equalizer Setting = 6 DC Gain = 0 dB > 0.1 > 0.1 N/A UI 4-31 Stratix II GX Device Handbook, Volume 1 Operating Conditions Table 4-19. Stratix II GX Transceiver Block AC Specification Notes (1), (2), (3) (Part 15 of 19) Symbol/ Description Conditions -3 Speed Commercial Speed Grade Min Jitter Frequency = 20 MHz Data Rate = 614.4 Mbps, 1.2288 Gbps, 2.4576 Gbps REFCLK = 61.44 MHz for 614.4 Mbps REFCLK = 122.88 MHz for 1.2288 Gbps and 2.4576 Gbps Pattern = CJPAT Equalizer Setting = 6 DC Gain = 0 dB Typ > 0.1 Max -4 Speed Commercial and Industrial Speed Grade Min Typ > 0.1 Max -5 Speed Commercial Speed Grade Min Typ N/A Unit Max UI Sinusoidal Jitter Tolerance (peak-to-peak) (6) (cont.) 4-32 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-19. Stratix II GX Transceiver Block AC Specification Notes (1), (2), (3) (Part 16 of 19) Symbol/ Description Conditions -3 Speed Commercial Speed Grade Min Typ Max -4 Speed Commercial and Industrial Speed Grade Min Typ Max -5 Speed Commercial Speed Grade Min Typ Unit Max SDI Transmitter Jitter Generation (16) Data Rate = 1.485 Gbps (HD) REFCLK = 74.25 MHz Pattern = ColorBar Vod = 800 mV No Pre-emphasis Low-Frequency Roll-Off = 100 KHz 0.2 0.2 0.2 UI Data Rate = 2.97 Gbps (3G) REFCLK = 148.5 MHz Pattern = ColorBar Vod = 800 mV No Pre-emphasis Low-Frequency Roll-Off = 100 KHz 0.3 0.3 0.3 UI Alignment Jitter (peak-to-peak) Altera Corporation June 2009 4-33 Stratix II GX Device Handbook, Volume 1 Operating Conditions Table 4-19. Stratix II GX Transceiver Block AC Specification Notes (1), (2), (3) (Part 17 of 19) Symbol/ Description Conditions -3 Speed Commercial Speed Grade Min Typ Max -4 Speed Commercial and Industrial Speed Grade Min Typ Max -5 Speed Commercial Speed Grade Min Typ Unit Max SDI Receiver Jitter Tolerance (16) Sinusoidal Jitter Tolerance (peak-to-peak) Jitter Frequency = 15 KHz Data Rate = 2.97 Gbps (3G) REFCLK = 148.5 MHz Pattern = Single Line Scramble Color Bar No Equalization DC Gain = 0 dB >2 >2 >2 UI Jitter Frequency = 100 KHz Data Rate = 2.97 Gbps (3G) REFCLK = 148.5 MHz Pattern = Single Line Scramble Color Bar No Equalization DC Gain = 0 dB > 0.3 > 0.3 > 0.3 UI Jitter Frequency = 148.5 MHz Data Rate = 2.97 Gbps (3G) REFCLK = 148.5 MHz Pattern = Single Line Scramble Color Bar No Equalization DC Gain = 0 dB > 0.3 > 0.3 > 0.3 UI 4-34 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-19. Stratix II GX Transceiver Block AC Specification Notes (1), (2), (3) (Part 18 of 19) Symbol/ Description Conditions -3 Speed Commercial Speed Grade Min Sinusoidal Jitter Tolerance (peak-to-peak) Altera Corporation June 2009 Typ Max -4 Speed Commercial and Industrial Speed Grade Min Typ Max -5 Speed Commercial Speed Grade Min Typ Unit Max Jitter Frequency = 20 KHz Data Rate = 1.485 Gbps (HD) REFCLK = 74.25 MHz Pattern = 75% Color Bar No Equalization DC Gain = 0 dB >1 >1 >1 UI Jitter Frequency = 100 KHz Data Rate = 1.485 Gbps (HD) REFCLK = 74.25 MHz Pattern = 75% Color Bar No Equalization DC Gain = 0 dB > 0.2 > 0.2 > 0.2 UI Jitter Frequency = 148.5 MHz Data Rate = 1.485 Gbps (HD) REFCLK = 74.25 MHz Pattern = 75% Color Bar No Equalization DC Gain = 0 dB > 0.2 > 0.2 > 0.2 UI 4-35 Stratix II GX Device Handbook, Volume 1 Operating Conditions Table 4-19. Stratix II GX Transceiver Block AC Specification Notes (1), (2), (3) (Part 19 of 19) Symbol/ Description Conditions -3 Speed Commercial Speed Grade Min Typ Max -4 Speed Commercial and Industrial Speed Grade Min Typ Max -5 Speed Commercial Speed Grade Min Typ Unit Max Notes to Table 4-19: (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) (15) (16) (17) (18) Dedicated REFCLK pins were used to drive the input reference clocks. Jitter numbers specified are valid for the stated conditions only. Refer to the protocol characterization documents for detailed information. HiGig configuration is available in a -3 speed grade only. For more information, refer to the Stratix II GX Transceiver Architecture Overview chapter in volume 2 of the Stratix II GX Device Handbook. Stratix II GX transceivers meet CEI jitter generation specification of 0.3 UI for a VOD range of 400 mV to 1000 mV. The Sinusoidal Jitter Tolerance Mask is defined only for low voltage (LV) variant of CPRI. The jitter numbers for SONET/SDH are compliant to the GR-253-CORE Issue 3 Specification. The jitter numbers for Fibre Channel are compliant to the FC-PI-4 Specification revision 6.10. The jitter numbers for XAUI are compliant to the IEEE802.3ae-2002 Specification. The jitter numbers for PCI Express are compliant to the PCIe Base Specification 2.0. The jitter numbers for Serial RapidIO are compliant to the RapidIO Specification 1.3. The jitter numbers for GIGE are compliant to the IEEE802.3-2002 Specification. The jitter numbers for HiGig are compliant to the IEEE802.3ae-2002 Specification. The jitter numbers for (OIF) CEI are compliant to the OIF-CEI-02.0 Specification. The jitter numbers for CPRI are compliant to the CPRI Specification V2.1. The HD-SDI and 3G-SDI jitter numbers are compliant to the SMPTE292M and SMPTE424M Specifications. The Fibre Channel transmitter jitter generation numbers are compliant to the specification at T interoperability point. The Fibre Channel receiver jitter tolerance numbers are compliant to the specification at R interoperability point. Table 4-20 provides information on recommended input clock jitter for each mode. Table 4-20. Recommended Input Clock Jitter (Part 1 of 2) Mode PCI-E (OIF) CEI PHY Reference Clock (MHz) Vectron LVPECL XO Type/Model RMS Jitter Frequency (12 kHz to 20 Range (MHz) MHz) (ps) Period Jitter (Peak to Peak) (ps) Phase Noise at 1 MHz (dB c/Hz) 100 VCC6-Q/R 10 to 270 0.3 23 -149.9957 156.25 VCC6-Q/R 10 to 270 0.3 23 -146.2169 622.08 VCC6-Q 270 to 800 2 30 Not available GIGE 62.5 VCC6-Q/R 10 to 270 0.3 23 -149.9957 125 VCC6-Q/R 10 to 270 0.3 23 -146.9957 XAUI 156.25 VCC6-Q/R 10 to 270 0.3 23 -146.2169 4-36 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-20. Recommended Input Clock Jitter (Part 2 of 2) Mode Reference Clock (MHz) Vectron LVPECL XO Type/Model SONET/SDH OC-48 SONET/SDH OC-12 RMS Jitter Frequency (12 kHz to 20 Range (MHz) MHz) (ps) Period Jitter (Peak to Peak) (ps) Phase Noise at 1 MHz (dB c/Hz) 77.76 VCC6-Q/R 10 to 270 0.3 23 -149.5476 155.52 VCC6-Q/R 10 to 270 0.3 23 -149.1903 311.04 VCC6-Q 270 to 800 2 30 Not available 622.08 VCC6-Q 270 to 800 2 30 Not available 62.2 VCC6-Q/R 10 to 270 0.3 23 -149.6289 311 VCC6-Q 270 to 800 2 30 Not available 77.76 VCC6-Q/R 10 to 270 0.3 23 -149.5476 155.52 VCC6-Q/R 10 to 270 0.3 23 -149.1903 622.08 VCC6-Q 270 to 800 2 30 Not available Tables 4-21 and 4-22 show the transmitter and receiver PCS latency for each mode, respectively. Table 4-21. PCS Latency (Part 1 of 2) Note (1) Transmitter PCS Latency Functional Mode XAUI PIPE Sum (2) - 2-3 1 0.5 0.5 4-5 3-4 1 - 1 6-7 x1, x4, x8 16-bit channel width 1 3-4 1 - 0.5 6-7 - 2-3 1 - 1 4-5 OC-12 - 2-3 1 - 1 4-5 OC-48 - 2-3 1 - 0.5 4-5 OC-96 Altera Corporation June 2009 8B/10B Encoder 1 - 2-3 1 - 0.5 4-5 - 2-3 1 - 0.5 4-5 614 Mbps, 1.228 Gbps - 2 1 - 1 4 2.456 Gbps - 2-3 1 - 1 4-5 (OIF) CEI PHY CPRI (3) Byte TX State Serializer Machine x1, x4, x8 8-bit channel width GIGE SONET/SDH TX PIPE TX Phase Comp FIFO Configuration 4-37 Stratix II GX Device Handbook, Volume 1 Operating Conditions Table 4-21. PCS Latency (Part 2 of 2) Note (1) Transmitter PCS Latency Functional Mode Serial RapidIO SDI BASIC Single Width BASIC Double Width TX PIPE TX Phase Comp FIFO 1.25 Gbps, 2.5 Gbps, 3.125 Gbps - 2-3 1 HD 10-bit channel width - 2-3 HD, 3G 20-bit channel width - 8-bit/10-bit channel width Configuration Byte TX State Serializer Machine 8B/10B Encoder Sum (2) - 0.5 4-5 1 - 1 4-5 2-3 1 - 0.5 4-5 - 2-3 1 - 1 4-5 16-bit/20-bit channel width - 2-3 1 - 0.5 4-5 16-bit/20-bit channel width - 2-3 1 - 1 4-5 32-bit/40-bit channel width - 2-3 1 - 0.5 4-5 Parallel Loopback/ BIST - 2-3 1 - 1 4-5 Notes to Table 4-21: (1) (2) (3) The latency numbers are with respect to the PLD-transceiver interface clock cycles. The total latency number is rounded off in the Sum column. For CPRI 614 Mbps and 1.228 Gbps data rates, the Quartus II software customizes the PLD-transceiver interface clocking to achieve zero clock cycle uncertainty in the transmitter phase compensation FIFO latency. For more details, refer to the CPRI Mode section in the Stratix II GX Transceiver Architecture Overview chapter in volume 2 of the Stratix II GX Device Handbook. 4-38 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-22. PCS Latency (Part 1 of 3) Note (1) Receiver PCS Latency Functional Mode Word Aligner Deskew FIFO Rate Matcher (3) 8B/10B Decoder Receiver State Machine Byte Deserializer Byte Order Receiver Phase Comp FIFO Receiver PIPE Sum (2) 2-2.5 2-2.5 5.5-6.5 0.5 1 1 1 1-2 - 14-17 x1, x4, x8 8-bit channel width 4-5 - 11-13 1 - 1 1 2-3 1 21-25 x1, x4, x8 16-bit channel width 2-2.5 - 5.5-6.5 0.5 - 1 1 2-3 1 13-16 4-5 - 11-13 1 - 1 1 1-2 - 19-23 OC-12 6-7 - - 1 - 1 1 1-2 - 10-12 Configuration XAUI PIPE GIGE SONET/ SDH OC-48 3-3.5 - - 0.5 - 1 1-2 1-2 - 7-9 OC-96 2-2.5 - - 0.5 - 1 1 1-2 - 6-7 2.5 - - 0.5 - 1 1 1-2 - 6-7 614 Mbps, 1.228 Gbps 4-5 - - 1 - 1 1 1 - 8-9 2.456 Gbps 4-5 - - 1 - 1 1 1-2 - 8-10 1.25 Gbps, 2.5 Gbps, 3.125 Gbps 2-2.5 - - 0.5 - 1 1 1-2 - 6-7 HD 10-bit channel width 5 - - 1 - 1 1 1-2 - 9-10 HD, 3G 20-bit channel width 2.5 - - 0.5 - 1 1 1-2 - 6-7 (OIF) CEI PHY CPRI (4) Serial RapidIO SDI Altera Corporation June 2009 4-39 Stratix II GX Device Handbook, Volume 1 Operating Conditions Table 4-22. PCS Latency (Part 2 of 3) Note (1) Receiver PCS Latency Functional Mode BASIC Single Width Word Aligner Deskew FIFO Rate Matcher (3) 8B/10B Decoder Receiver State Machine Byte Deserializer Byte Order Receiver Phase Comp FIFO Receiver PIPE Sum (2) 8/10-bit channel width; with Rate Matcher 4-5 - 11-13 1 - 1 1 1-2 1 19-23 8/10-bit channel width; without Rate Matcher 4-5 - - 1 - 1 1 1-2 - 8-10 16/20-bit channel width; with Rate Matcher 2-2.5 - 5.5-6.5 0.5 - 1 1 1-2 - 11-14 16/20-bit channel width; without Rate Matcher 2-2.5 - - 0.5 - 1 1 1-2 - 6-7 Configuration 4-40 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-22. PCS Latency (Part 3 of 3) Note (1) Receiver PCS Latency Functional Mode BASIC Double Width Word Aligner Deskew FIFO Rate Matcher (3) 8B/10B Decoder Receiver State Machine Byte Deserializer Byte Order Receiver Phase Comp FIFO Receiver PIPE Sum (2) 16/20-bit channel width; with Rate Matcher 4-5 - 11-13 1 - 1 1 1-2 - 19-23 16/20-bit channel width; without Rate Matcher 4-5 - - 1 - 1 1 1-2 - 8-10 32/40-bit channel width; with Rate Matcher 2-2.5 - 5.5-6.5 0.5 - 1 1 1-2 - 11-14 32/40-bit channel width; without Rate Matcher 2-2.5 - - 0.5 - 1 1-3 1-2 - 6-9 Configuration Notes to Table 4-21: (1) (2) (3) (4) The latency numbers are with respect to the PLD-transceiver interface clock cycles. The total latency number is rounded off in the Sum column. The rate matcher latency shown is the steady state latency. Actual latency may vary depending on the skip ordered set gap allowed by the protocol, actual PPM difference between the reference clocks, and so forth. For CPRI 614 Mbps and 1.228 Gbps data rates, the Quartus II software customizes the PLD-transceiver interface clocking to achieve zero clock cycle uncertainty in the receiver phase compensation FIFO latency. For more details, refer to the CPRI Mode section in the Stratix II GX Transceiver Architecture Overview chapter in volume 2 of the Stratix II GX Device Handbook Altera Corporation June 2009 4-41 Stratix II GX Device Handbook, Volume 1 Operating Conditions DC Electrical Characteristics Table 4-23 shows the Stratix II GX device family DC electrical characteristics. Table 4-23. Stratix II GX Device DC Operating Conditions (Part 1 of 2) Symbol Parameter Conditions Device Note (1) Minimum Typical Maximum Unit II Input pin leakage current VI = VCCIOmax to 0 V (2) All -10 10 A IOZ Tri-stated I/O pin leakage current VO = VCCIOmax to 0 V (2) All -10 10 A ICCINT0 VCCINT supply current (standby) VI = ground, no load, no toggling inputs TJ = 25 C EP2SGX30 0.30 (3) A EP2SGX60 0.50 (3) A EP2SGX90 0.62 (3) A ICCPD0 ICCI00 VCCPD supply current (standby) VCCIO supply current (standby) EP2SGX130 0.82 (3) A VI = ground, no load, no toggling inputs TJ = 25 C, VCCPD = 3.3V EP2SGX30 2.7 (3) mA EP2SGX60 3.6 (3) mA EP2SGX90 4.3 (3) mA EP2SGX130 5.4 (3) mA VI = ground, no load, no toggling inputs TJ = 25 C EP2SGX30 4.0 (3) mA EP2SGX60 4.0 (3) mA EP2SGX90 4.0 (3) mA EP2SGX130 4.0 (3) mA 4-42 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-23. Stratix II GX Device DC Operating Conditions (Part 2 of 2) Symbol RCONF (4) Parameter Conditions Value of I/O pin pull-up resistor before and during configuration Device Note (1) Minimum Typical Maximum Unit Vi = 0, VCCIO = 3.3 V 10 25 50 KOhm Vi = 0, VCCIO = 2.5 V 15 35 70 KOhm Vi = 0, VCCIO = 1.8 V 30 50 100 KOhm Vi = 0, VCCIO = 1.5 V 40 75 150 KOhm Vi = 0, VCCIO = 1.2 V 50 90 170 KOhm 1 2 KOhm Recommended value of I/O pin external pull-down resistor before and during configuration Notes to Table 4-23: (1) (2) (3) (4) Typical values are for TA = 25 C, VCCINT = 1.2 V, and VCCIO = 1.5 V, 1.8 V, 2.5 V, and 3.3 V. This value is specified for normal device operation. The value may vary during power-up. This applies for all VCCIO settings (3.3, 2.5, 1.8, and 1.5 V). Maximum values depend on the actual TJ and design utilization. See PowerPlay Early Power Estimator (EPE) and Power Analyzer or the Quartus II PowerPlay Power Analyzer and Optimization Technology (available at www.altera.com) for maximum values. See the section "Power Consumption" on page 4-59 for more information. Pin pull-up resistance values will lower if an external source drives the pin higher than VCCIO. I/O Standard Specifications Tables 4-24 through 4-47 show the Stratix II GX device family I/O standard specifications. Table 4-24. LVTTL Specifications (Part 1 of 2) Symbol Parameter VCCIO (1) Output supply voltage Conditions Minimum Maximum Unit 3.135 3.465 V VIH High-level input voltage 1.7 4.0 V VIL Low-level input voltage -0.3 0.8 V VOH High-level output voltage Altera Corporation June 2009 IOH = -4 mA (2) 2.4 V 4-43 Stratix II GX Device Handbook, Volume 1 Operating Conditions Table 4-24. LVTTL Specifications (Part 2 of 2) Symbol VOL Parameter Low-level output voltage Conditions Minimum IOL = 4 mA (2) Maximum Unit 0.45 V Notes to Table 4-24: (1) (2) Stratix II GX devices comply to the narrow range for the supply voltage as specified in the EIA/JEDEC Standard, JESD8-B. This specification is supported across all the programmable drive strength settings available for this I/O standard as shown in the Stratix II GX Architecture chapter in volume 1 of the Stratix II GX Device Handbook. Table 4-25. LVCMOS Specifications Symbol Parameter Note (1) Minimum Maximum Unit 3.135 3.465 V High-level input voltage 1.7 4.0 V VIL Low-level input voltage -0.3 0.8 V VOH High-level output voltage VCCIO = 3.0, IOH = -0.1 mA (2) VOL Low-level output voltage VCCIO = 3.0, IOL = 0.1 mA (2) VCCIO(1) Output supply voltage VIH Conditions VCCIO - 0.2 V 0.2 V Notes to Table 4-25: (1) (2) Stratix II GX devices comply to the narrow range for the supply voltage as specified in the EIA/JEDEC Standard, JESD8-B. This specification is supported across all the programmable drive strength available for this I/O standard as shown in Stratix II GX Architecture chapter in volume 1 of the Stratix II GX Device Handbook. Table 4-26. 2.5-V I/O Specifications Symbol Parameter Conditions VCCIO (1) Output supply voltage VIH High-level input voltage VIL Low-level input voltage VOH High-level output voltage IOH = -1 mA (2) VOL Low-level output voltage IOL = 1 mA (2) Minimum Maximum Unit 2.375 2.625 V 1.7 4.0 V -0.3 0.7 2.0 V V 0.4 V Notes to Table 4-26: (1) (2) The Stratix II GX device VCCIO voltage level support of 2.5 to 5% is narrower than defined in the Normal Range of the EIA/JEDEC standard. This specification is supported across all the programmable drive settings available for this I/O standard as shown in Stratix II GX Architecture chapter in volume 1 of the Stratix II GX Device Handbook. 4-44 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-27. 1.8-V I/O Specifications Symbol Parameter VCCIO (1) Output supply voltage VIH High-level input voltage Conditions VIL Low-level input voltage VOH High-level output voltage IOH = -2 mA (2) VOL Low-level output voltage IOL = 2 mA (2) Minimum Maximum Unit 1.71 1.89 V 0.65 x VCCIO 2.25 V -0.3 0.35 x VCCIO VCCIO - 0.45 V V 0.45 V Notes to Table 4-27: (1) (2) The Stratix II GX device VCCIO voltage level support of 1.8 to 5% is narrower than defined in the Normal Range of the EIA/JEDEC standard. This specification is supported across all the programmable drive settings available for this I/O standard as shown in Stratix II GX Architecture chapter in volume 1 of the Stratix II GX Device Handbook. Table 4-28. 1.5-V I/O Specifications Symbol Parameter VCCIO (1) Output supply voltage VIH High-level input voltage Conditions VIL Low-level input voltage VOH High-level output voltage IOH = -2 mA (2) VOL Low-level output voltage IOL = 2 mA (2) Minimum Maximum Unit 1.425 1.575 V 0.65 VCCIO VCCIO + 0.3 V -0.3 0.35 VCCIO V 0.75 VCCIO V 0.25 VCCIO V Notes to Table 4-28: (1) (2) The Stratix II GX device VCCIO voltage level support of 1.5 to 5% is narrower than defined in the Normal Range of the EIA/JEDEC standard. This specification is supported across all the programmable drive settings available for this I/O standard as shown in Stratix II GX Architecture chapter in volume 1 of the Stratix II GX Device Handbook. Altera Corporation June 2009 4-45 Stratix II GX Device Handbook, Volume 1 Operating Conditions Figures 4-6 and 4-7 show receiver input and transmitter output waveforms, respectively, for all differential I/O standards (LVDS and LVPECL). Figure 4-6. Receiver Input Waveforms for Differential I/O Standards Single-Ended Waveform Positive Channel (p) = VIH VID Negative Channel (n) = VIL VCM Ground Differential Waveform VID p-n=0V VID (Peak-to-Peak) VID Figure 4-7. Transmitter Output Waveforms for Differential I/O Standards Single-Ended Waveform Positive Channel (p) = VOH VOD Negative Channel (n) = VOL VCM Ground Differential Waveform VOD p-n=0V VOD 4-46 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-29. 2.5-V LVDS I/O Specifications Symbol Parameter Conditions Minimum Typical Maximum Unit 2.375 2.5 2.625 V VCCIO I/O supply voltage for left and right I/O banks (1, 2, 5, and 6) VID Input differential voltage swing (single-ended) 100 350 900 mV VICM Input common mode voltage 200 1,250 1,800 mV VOD Output differential voltage (single-ended) RL = 100 250 450 mV VOCM Output common mode voltage RL = 100 1.125 1.375 V RL Receiver differential input discrete resistor (external to Stratix II GX devices) 90 100 110 Minimum Typical Maximum Unit 3.135 3.3 3.465 V Table 4-30. 3.3-V LVDS I/O Specifications Symbol Parameter Conditions VCCIO (1) I/O supply voltage for top and bottom PLL banks (9, 10, 11, and 12) VID Input differential voltage swing (single-ended) 100 350 900 mV VICM Input common mode voltage 200 1,250 1,800 mV VOD Output differential voltage (single-ended) RL = 100 250 710 mV VOCM Output common mode voltage RL = 100 840 1,570 mV RL Receiver differential input discrete resistor (external to Stratix II GX devices) 110 90 100 Note to Table 4-30: (1) The top and bottom clock input differential buffers in I/O banks 3, 4, 7, and 8 are powered by VCCINT, not VCCIO. The PLL clock output/feedback differential buffers are powered by VCC_PLL_OUT. For differential clock output/feedback operation, connect VCC_PLL_OUT to 3.3 V. Altera Corporation June 2009 4-47 Stratix II GX Device Handbook, Volume 1 Operating Conditions Table 4-31. PCML Specifications Note (1) Symbol Parameter References Reference Clock 3.3-V PCML 1.5-V PCML 1.2-V PCML Reference clock supported PCML standards VID Peak-to-peak differential input voltage VICM Input common mode voltage R On-chip termination resistors The specifications are located in the Reference Clock section of Table 4-6 on page 4-4. The specifications listed in Table 4-6 are applicable to PCML input standards. Receiver 3.3-V PCML 1.5-V PCML 1.2-V PCML Receiver supported PCML standards VID Peak-to-peak differential input voltage VICM Input common mode voltage R On-chip termination resistors The specifications are located in the Receiver section of Table 4-6 on page 4-4. The specifications listed in Table 4-6 are applicable to PCML input standards. Transmitter 1.5-V PCML 1.2-V PCML Transmitter supported PCML standards VCCH Output buffer supply voltage The specifications are located in Table 4-5 on page 4-4. VOD Peak-to-peak differential output voltage The specifications are located in Tables 4-7, 4-8, 4-9, 4-10, 4-11, and 4-12. The specifications listed in these tables are applicable to PCML output standards. VOCM Output common mode voltage R On-chip termination resistors The specifications are located in the Transmitter section of Table 4-6 on page 4-4. The specifications listed in Table 4-6 are applicable to PCML output standards. Note to Table 4-31: (1) Stratix II GX devices support PCML input and output on GXB banks 13, 14, 15, 16, and 17. This table references Stratix II GX PCML specifications that are located in other sections of the Stratix II GX Device Handbook. 4-48 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-32. LVPECL Specifications Symbol Parameter Conditions Minimum Typical Maximum Unit 3.135 3.3 3.465 V 600 1,000 mV VCCIO (1) I/O supply voltage VID Input differential voltage swing (single-ended) 300 VICM Input common mode voltage 1.0 2.5 V VOD Output differential voltage (single-ended) RL = 100 525 970 mV VOCM Output common mode voltage RL = 100 1,650 2,250 mV RL Receiver differential input resistor 110 90 100 Note to Table 4-32: (1) The top and bottom clock input differential buffers in I/O banks 3, 4, 7, and 8 are powered by VCCINT, not VCCIO. The PLL clock output/feedback differential buffers are powered by VCC_PLL_OUT. For differential clock output/feedback operation, connect VCC_PLL_OUT to 3.3 V. Table 4-33. 3.3-V PCI Specifications Symbol Parameter VCCIO Output supply voltage Conditions Minimum Typical Maximum Unit 3.0 3.3 3.6 V VIH High-level input voltage 0.5 VCCIO VCCIO + 0.5 V VIL Low-level input voltage -0.3 0.3 VCCIO V VOH High-level output voltage IOUT = -500 A VOL Low-level output voltage IOUT = 1,500 A 0.9 VCCIO V 0.1 VCCIO V Maximum Unit 3.0 3.6 V Table 4-34. PCI-X Mode 1 Specifications Symbol Parameter VCCIO Output supply voltage Conditions Minimum Typical VIH High-level input voltage 0.5 VCCIO VCCIO + 0.5 V VIL Low-level input voltage -0.3 0.35 VCCIO V VIPU Input pull-up voltage VOH High-level output voltage IOUT = -500 A VOL Low-level output voltage IOUT = 1,500 A Altera Corporation June 2009 0.7 VCCIO V 0.9 VCCIO V 0.1 VCCIO V 4-49 Stratix II GX Device Handbook, Volume 1 Operating Conditions Table 4-35. SSTL-18 Class I Specifications Symbol Parameter Conditions Minimum Typical Maximum Unit VCCIO Output supply voltage 1.71 1.8 1.89 V VREF Reference voltage 0.855 0.9 0.945 V VTT Termination voltage VREF - 0.04 VREF VREF + 0.04 V VIH (DC) High-level DC input voltage VREF + 0.125 VIL (DC) Low-level DC input voltage VIH (AC) High-level AC input voltage V VREF - 0.125 VREF + 0.25 VIL (AC) Low-level AC input voltage VOH High-level output voltage IOH = -6.7 mA (1) VOL Low-level output voltage IOL = 6.7 mA (1) V V VREF - 0.25 VTT + 0.475 V V VTT - 0.475 V Note to Table 4-35: (1) This specification is supported across all the programmable drive settings available for this I/O standard as shown in the Stratix II GX Architecture chapter in volume 1 of the Stratix II GX Device Handbook. Table 4-36. SSTL-18 Class II Specifications Symbol Parameter Conditions Minimum Typical Maximum Unit VCCIO Output supply voltage 1.71 1.8 1.89 V VREF Reference voltage 0.855 0.9 0.945 V VTT Termination voltage VREF - 0.04 VREF VREF + 0.04 V VIH (DC) High-level DC input voltage VREF + 0.125 VIL (DC) Low-level DC input voltage VIH (AC) High-level AC input voltage V VREF - 0.125 V VREF - 0.25 V VREF + 0.25 VIL (AC) Low-level AC input voltage VOH High-level output voltage IOH = -13.4 mA (1) VOL Low-level output voltage IOL = 13.4 mA (1) V VCCIO - 0.28 V 0.28 V Note to Table 4-36: (1) This specification is supported across all the programmable drive settings available for this I/O standard as shown in the Stratix II GX Architecture chapter in volume 1 of the Stratix II GX Device Handbook. 4-50 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-37. SSTL-18 Class I and II Differential Specifications Symbol Parameter Conditions Minimum Typical Maximum Unit 1.8 1.89 V VCCIO Output supply voltage 1.71 VSWING (DC) DC differential input voltage 0.25 VX (AC) AC differential input cross point voltage VSWING (AC) AC differential input voltage VISO Input clock signal offset voltage 0.5 VCCIO V VISO Input clock signal offset voltage variation 200 mV VOX (AC) AC differential cross point voltage V (VCCIO/2) - 0.175 (VCCIO/2) + 0.175 0.5 V V (VCCIO/2) - 0.125 (VCCIO/2) + 0.125 V Table 4-38. SSTL-2 Class I Specifications Symbol Parameter VCCIO Output supply voltage VTT Termination voltage VREF Reference voltage VIH (DC) High-level DC input voltage Conditions Minimum Typical Maximum Unit 2.375 2.5 2.625 V VREF - 0.04 VREF VREF + 0.04 V 1.188 1.25 1.313 V VREF + 0.18 3.0 V VREF - 0.18 VIL (DC) Low-level DC input voltage -0.3 VIH (AC) High-level AC input voltage VREF + 0.35 VIL (AC) Low-level AC input voltage VOH High-level output voltage IOH = -8.1 mA (1) VOL Low-level output voltage IOL = 8.1 mA (1) V V VREF - 0.35 VTT + 0.57 V V VTT - 0.57 V Note to Table 4-38: (1) This specification is supported across all the programmable drive settings available for this I/O standard as shown in the Stratix II GX Architecture chapter in volume 1 of the Stratix II GX Device Handbook. Table 4-39. SSTL-2 Class II Specifications Symbol Parameter VCCIO Output supply voltage VTT Termination voltage VREF Reference voltage Altera Corporation June 2009 Conditions Minimum Typical Maximum Unit 2.375 2.5 2.625 V VREF - 0.04 VREF VREF + 0.04 V 1.188 1.25 1.313 V 4-51 Stratix II GX Device Handbook, Volume 1 Operating Conditions Table 4-39. SSTL-2 Class II Specifications Symbol Parameter Conditions Minimum Typical Maximum Unit VIH (DC) High-level DC input voltage VREF + 0.18 VCCIO + 0.3 V VIL (DC) Low-level DC input voltage -0.3 VREF - 0.18 V VREF + 0.35 VREF - 0.35 V VIH (AC) High-level AC input voltage VIL (AC) Low-level AC input voltage VOH High-level output voltage IOH = -16.4 mA (1) VOL Low-level output voltage IOL = 16.4 mA (1) V VTT + 0.76 V VTT - 0.76 V Note to Table 4-39: (1) This specification is supported across all the programmable drive settings available for this I/O standard as shown in the Stratix II GX Architecture chapter in volume 1 of the Stratix II GX Device Handbook. Table 4-40. SSTL-2 Class I and II Differential Specifications Symbol VCCIO Parameter Conditions Output supply voltage VSWING (DC) DC differential input voltage VX (AC) AC differential input cross point voltage Minimum Typical Maximum Unit 2.375 2.5 2.625 V 0.36 V (VCCIO/2) - 0.2 VSWING (AC) AC differential input voltage (VCCIO/2) + 0.2 0.7 V V VISO Input clock signal offset voltage 0.5 VCCIO V VISO Input clock signal offset voltage variation 200 mV VOX (AC) AC differential output cross point voltage (VCCIO/2) - 0.2 (VCCIO/2) + 0.2 V Maximum Unit Table 4-41. 1.2-V HSTL Specifications Symbol Parameter Conditions Minimum Typical VCCIO Output supply voltage 1.14 1.2 1.26 V VREF Reference voltage 0.48 VCCIO 0.5 VCCIO 0.52 VCCIO V VIH (DC) High-level DC input voltage VREF + 0.08 VCCIO + 0.15 V VIL (DC) Low-level DC input voltage -0.15 VREF - 0.08 V VIH (AC) High-level AC input voltage VREF + 0.15 VCCIO + 0.24 V VIL (AC) Low-level AC input voltage -0.24 VREF - 0.15 V 4-52 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-41. 1.2-V HSTL Specifications Symbol Parameter Conditions Minimum Typical Maximum Unit VOH High-level output voltage IOH = 8 mA VREF + 0.15 VCCIO + 0.15 V VOL Low-level output voltage IOH = -8 mA -0.15 VREF - 0.15 V Table 4-42. 1.5-V HSTL Class I Specifications Symbol Parameter Conditions Minimum Typical Maximum Unit VCCIO Output supply voltage 1.425 1.5 1.575 V VREF Input reference voltage 0.713 0.75 0.788 V VTT Termination voltage 0.713 0.75 0.788 VIH (DC) DC high-level input voltage VREF + 0.1 VIL (DC) DC low-level input voltage -0.3 VIH (AC) AC high-level input voltage VREF + 0.2 VIL (AC) AC low-level input voltage VOH High-level output voltage IOH = 8 mA (1) VOL Low-level output voltage IOH = -8 mA (1) V V VREF - 0.1 V VREF - 0.2 V V VCCIO - 0.4 V 0.4 V Note to Table 4-42: (1) This specification is supported across all the programmable drive settings available for this I/O standard as shown in the Stratix II GX Architecture chapter in volume 1 of the Stratix II GX Device Handbook. Table 4-43. 1.5-V HSTL Class II Specifications Symbol Parameter Conditions Minimum Typical Maximum Unit VCCIO Output supply voltage 1.425 1.50 1.575 V VREF Input reference voltage 0.713 0.75 0.788 V VTT Termination voltage 0.713 0.75 0.788 VIH (DC) DC high-level input voltage VREF + 0.1 VIL (DC) DC low-level input voltage -0.3 VIH (AC) AC high-level input voltage VREF + 0.2 VIL (AC) AC low-level input voltage VOH High-level output voltage IOH = 16 mA (1) VOL Low-level output voltage IOH = -16 mA (1) V V VREF - 0.1 V VREF - 0.2 V V VCCIO - 0.4 V 0.4 V Note to Table 4-43: (1) This specification is supported across all the programmable drive settings available for this I/O standard as shown in the Stratix II GX Architecture chapter in volume 1 of the Stratix II GX Device Handbook. Altera Corporation June 2009 4-53 Stratix II GX Device Handbook, Volume 1 Operating Conditions Table 4-44. 1.5-V HSTL Class I and II Differential Specifications Symbol Parameter Conditions Minimum Typical Maximum Unit 1.425 1.5 1.575 V VCCIO I/O supply voltage VDIF (DC) DC input differential voltage 0.2 VCM (DC) DC common mode input voltage 0.68 VDIF (AC) AC differential input voltage 0.4 VOX (AC) AC differential cross point voltage 0.68 V 0.9 V V 0.9 V Table 4-45. 1.8-V HSTL Class I Specifications Symbol Parameter Conditions Minimum Typical Maximum Unit VCCIO Output supply voltage 1.71 1.80 1.89 V VREF Input reference voltage 0.85 0.90 0.95 V VTT Termination voltage 0.85 0.90 0.95 V VIH (DC) DC high-level input voltage VREF + 0.1 VIL (DC) DC low-level input voltage -0.3 VIH (AC) AC high-level input voltage VREF + 0.2 VIL (AC) AC low-level input voltage VOH High-level output voltage IOH = 8 mA (1) VOL Low-level output voltage IOH = -8 mA (1) V VREF - 0.1 V V VREF - 0.2 VCCIO - 0.4 V V 0.4 V Note to Table 4-45: (1) This specification is supported across all the programmable drive settings available for this I/O standard as shown in the Stratix II GX Architecture chapter in volume 1 of the Stratix II GX Device Handbook. 4-54 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-46. 1.8-V HSTL Class II Specifications Symbol Parameter Conditions Minimum Typical Maximum Unit VCCIO Output supply voltage 1.71 1.80 1.89 V VREF Input reference voltage 0.85 0.90 0.95 V VTT Termination voltage 0.85 0.90 0.95 VIH (DC) DC high-level input voltage VREF + 0.1 VIL (DC) DC low-level input voltage -0.3 VIH (AC) AC high-level input voltage VREF + 0.2 VIL (AC) AC low-level input voltage VOH High-level output voltage IOH = 16 mA (1) VOL Low-level output voltage IOH = -16 mA (1) V V VREF - 0.1 V V VREF - 0.2 VCCIO - 0.4 V V 0.4 V Note to Table 4-46: (1) This specification is supported across all the programmable drive settings available for this I/O standard as shown in the Stratix II GX Architecture chapter in volume 1 of the Stratix II GX Device Handbook. Table 4-47. 1.8-V HSTL Class I and II Differential Specifications Symbol Parameter Conditions Minimum Typical Maximum Unit 1.80 1.89 V VCCIO I/O supply voltage 1.71 VDIF (DC) DC input differential voltage 0.2 VCM (DC) DC common mode input voltage 0.78 VDIF (AC) AC differential input voltage 0.4 VOX (AC) AC differential cross point voltage 0.68 Altera Corporation June 2009 V 1.12 V V 0.9 V 4-55 Stratix II GX Device Handbook, Volume 1 Operating Conditions Bus Hold Specifications Table 4-48 shows the Stratix II GX device family bus hold specifications. Table 4-48. Bus Hold Parameters VCCIO Level Parameter Conditions 1.2 V Min Max 1.5 V Min Max 1.8 V Min 2.5 V Max Min Max 3.3 V Min Unit Max Low sustaining current VIN > VIL (maximum) 22.5 25 30 50 70 A High sustaining current VIN < VIH (minimum) -22.5 -25 -30 -50 -70 A Low overdrive current 0 V < VIN < VCCIO 120 160 200 300 500 A High overdrive current 0 V < VIN < VCCIO -120 -160 -200 -300 -500 A 2.0 V Bus-hold trip point 0.45 0.95 0.5 1.0 0.68 1.07 0.7 1.7 0.8 On-Chip Termination Specifications Tables 4-49 and 4-50 define the specification for internal termination resistance tolerance when using series or differential on-chip termination. Table 4-49. On-Chip Termination Specification for Top and Bottom I/O Banks (Part 1 of 2) Notes (1), (2) Resistance Tolerance Symbol 25- RS 3.3/2.5 50- RS 3.3/2.5 Description Conditions Commercial Max Industrial Max Unit Internal series termination with calibration (25- setting) VCCIO = 3.3/2.5 V 5 10 % Internal series termination without calibration (25- setting) VCCIO = 3.3/2.5 V 30 30 % Internal series termination with calibration (50- setting) VCCIO = 3.3/2.5 V 5 10 % Internal series termination without calibration (50- setting) VCCIO = 3.3/2.5 V 30 30 % 4-56 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-49. On-Chip Termination Specification for Top and Bottom I/O Banks (Part 2 of 2) Notes (1), (2) Resistance Tolerance Symbol Description Conditions Commercial Max Industrial Max Unit 50- RT 2.5 Internal parallel termination with calibration (50- setting) VCCIO = 1.8 V 30 30 % 25- RS 1.8 Internal series termination with calibration (25- setting) VCCIO = 1.8 V 5 10 % Internal series termination without calibration (25- setting) VCCIO = 1.8 V 30 30 % Internal series termination with calibration (50- setting) VCCIO = 1.8 V 5 10 % Internal series termination without calibration (50- setting) VCCIO = 1.8 V 30 30 % 50- RT 1.8 Internal parallel termination with calibration (50- setting) VCCIO = 1.8 V 10 15 % 50- RS 1.5 Internal series termination with calibration (50- setting) VCCIO = 1.5 V 8 10 % Internal series termination without calibration (50- setting) VCCIO = 1.5 V 36 36 % 50- RT 1.5 Internal parallel termination with calibration (50- setting) VCCIO = 1.5 V 10 15 % 50- RS 1.2 Internal series termination with calibration (50- setting) VCCIO = 1.2 V 8 10 % Internal series termination without calibration (50- setting) VCCIO = 1.2 V 50 50 % Internal parallel termination with calibration (50- setting) VCCIO = 1.2 V 10 15 % 50- RS 1.8 50- RT 1.2 Note for Table 4-49: (1) (2) The resistance tolerance for calibrated SOCT is for the moment of calibration. If the temperature or voltage changes over time, the tolerance may also change. On-chip parallel termination with calibration is only supported for input pins. Altera Corporation June 2009 4-57 Stratix II GX Device Handbook, Volume 1 Operating Conditions Table 4-50. Series and Differential On-Chip Termination Specification for Left I/O Banks Note (1) Resistance Tolerance Symbol Description Conditions Commercial Industrial Max Max Unit 25- RS 3.3/2.5 Internal series termination without calibration (25- setting) VCCIO = 3.3/2.5V 30 30 % 50- RS 3.3/2.5/1.8 Internal series termination without calibration (50- setting) VCCIO = 3.3/2.5/1.8V 30 30 % 50- RS 1.5 Internal series termination without calibration (50- setting) VCCIO = 1.5V 36 36 % RD Internal differential termination for LVDS (100- setting) VCCIO = 2.5 V 20 25 % Note to Table 4-50: (1) On-chip parallel termination with calibration is only supported for input pins. Pin Capacitance Table 4-51 shows the Stratix II GX device family pin capacitance. Table 4-51. Stratix II GX Device Capacitance Symbol Note (1) Typical Unit CIOTB Input capacitance on I/O pins in I/O banks 3, 4, 7, and 8. Parameter 5.0 pF CIOL Input capacitance on I/O pins in I/O banks 1 and 2, including high-speed differential receiver and transmitter pins. 6.1 pF CCLKTB Input capacitance on top/bottom clock input pins: CLK[4..7] and CLK[12..15]. 6.0 pF CCLKL Input capacitance on left clock inputs: CLK0 and CLK2. 6.1 pF CCLKL+ Input capacitance on left clock inputs: CLK1 and CLK3. 3.3 pF COUTFB Input capacitance on dual-purpose clock output/feedback pins in PLL banks 11 and 12. 6.7 pF Note to Table 4-51: (1) Capacitance is sample-tested only. Capacitance is measured using time-domain reflections (TDR). Measurement accuracy is within 0.5 pF. 4-58 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Power Consumption Altera offers two ways to calculate power for a design: the Excel-based PowerPlay early power estimator power calculator and the Quartus(R) II PowerPlay power analyzer feature. The interactive Excel-based PowerPlay early power estimator is typically used prior to designing the FPGA in order to get an estimate of device power. The Quartus II PowerPlay power analyzer provides better quality estimates based on the specifics of the design after place-and-route is complete. The power analyzer can apply a combination of user-entered, simulation-derived and estimated signal activities which, combined with detailed circuit models, can yield very accurate power estimates. In both cases, these calculations should only be used as an estimation of power, not as a specification. f For more information on PowerPlay tools, refer to the PowerPlay Early Power Estimators (EPE) and Power Analyzer, the Quartus II PowerPlay Analysis and Optimization Technology, and the PowerPlay Power Analyzer chapter in volume 3 of the Quartus II Handbook. The PowerPlay early power estimators are available on the Altera web site at www.altera. com. 1 Timing Model See Table 4-23 on page 42 for typical ICC standby specifications. The DirectDrive technology and MultiTrack interconnect ensure predictable performance, accurate simulation, and accurate timing analysis across all Stratix II GX device densities and speed grades. This section describes and specifies the performance, internal, external, and PLL timing specifications. All specifications are representative of worst-case supply voltage and junction temperature conditions. Preliminary and Final Timing Timing models can have either preliminary or final status. The Quartus II software issues an informational message during the design compilation if the timing models are preliminary. Table 4-52 shows the status of the Stratix II GX device timing models. Preliminary status means the timing model is subject to change. Initially, timing numbers are created using simulation results, process data, and other known parameters. These tests are used to make the preliminary numbers as close to the actual timing parameters as possible. Altera Corporation June 2009 4-59 Stratix II GX Device Handbook, Volume 1 Timing Model Final timing numbers are based on actual device operation and testing. These numbers reflect the actual performance of the device under worst-case voltage and junction temperature conditions. Table 4-52. Stratix II GX Device Timing Model Status Device Preliminary Final EP2SGX30 v EP2SGX60 v EP2SGX90 v EP2SGX130 v I/O Timing Measurement Methodology Different I/O standards require different baseline loading techniques for reporting timing delays. Altera characterizes timing delays with the required termination for each I/O standard and with 0 pF (except for PCI and PCI-X which use 10 pF) loading and the timing is specified up to the output pin of the FPGA device. The Quartus II software calculates the I/O timing for each I/O standard with a default baseline loading as specified by the I/O standards. The following measurements are made during device characterization. Altera measures clock-to-output delays (tCO) at worst-case process, minimum voltage, and maximum temperature (PVT) for default loading conditions shown in Table 4-53. Use the following equations to calculate clock pin to output pin timing for Stratix II GX devices. tCO from clock pin to I/O pin = delay from clock pad to I/O output register + IOE output register clock-to-output delay + delay from output register to output pin + I/O output delay txz/tzx from clock pin to I/O pin = delay from clock pad to I/O output register + IOE output register clock-to-output delay + delay from output register to output pin + I/O output delay + output enable pin delay Simulation using IBIS models is required to determine the delays on the PCB traces in addition to the output pin delay timing reported by the Quartus II software and the timing model in the device handbook. 1. Simulate the output driver of choice into the generalized test setup, using values from Table 4-53. 2. Record the time to VMEAS. 4-60 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics 3. Simulate the output driver of choice into the actual PCB trace and load, using the appropriate IBIS model or capacitance value to represent the load. 4. Record the time to VMEAS. 5. Compare the results of steps 2 and 4. The increase or decrease in delay should be added to or subtracted from the I/O Standard Output Adder delays to yield the actual worst-case propagation delay (clock-to-output) of the PCB trace. The Quartus II software reports the timing with the conditions shown in Table 4-53 using the above equation. Figure 4-8 shows the model of the circuit that is represented by the output timing of the Quartus II software. Figure 4-8. Output Delay Timing Reporting Setup Modeled by Quartus II VTT VCCIO Outputp RT Output Buffer RS Output VMEAS GND Outputn CL RD GND Notes to Figure 4-8: (1) (2) (3) Output pin timing is reported at the output pin of the FPGA device. Additional delays for loading and board trace delay need to be accounted for with IBIS model simulations. VCCPD is 3.085 V unless otherwise specified. VCCINT is 1.12 V unless otherwise specified. Table 4-53. Output Timing Measurement Methodology for Output Pins (Part 1 of 2) Notes (1), (2), (3) Measurement Point Loading and Termination I/O Standard RS () LVTTL (4) RD () RT () VCCIO (V) 3.135 VTT (V) CL (pF) VMEAS (V) 0 1.5675 LVCMOS (4) 3.135 0 1.5675 2.5 V (4) 2.375 0 1.1875 1.8 V (4) 1.710 0 0.855 1.5 V (4) 1.425 0 0.7125 Altera Corporation June 2009 4-61 Stratix II GX Device Handbook, Volume 1 Timing Model Table 4-53. Output Timing Measurement Methodology for Output Pins (Part 2 of 2) Notes (1), (2), (3) Measurement Point Loading and Termination I/O Standard RS () RD () RT () VCCIO (V) VTT (V) CL (pF) VMEAS (V) PCI (5) 2.970 10 1.485 PCI-X (5) 2.970 10 1.485 SSTL-2 Class I 25 50 2.325 1.123 0 1.1625 SSTL-2 Class II 25 25 2.325 1.123 0 1.1625 SSTL-18 Class I 25 50 1.660 0.790 0 0.83 SSTL-18 Class II 25 25 1.660 0.790 0 0.83 1.8-V HSTL Class I 50 1.660 0.790 0 0.83 1.8-V HSTL Class II 25 1.660 0.790 0 0.83 1.5-V HSTL Class I 50 1.375 0.648 0 0.6875 1.5-V HSTL Class II 25 1.375 0.648 0 0.6875 1.2-V HSTL with OCT Differential SSTL-2 Class I 1.140 25 50 2.325 1.123 0 0.570 0 1.1625 Differential SSTL-2 Class II 25 25 2.325 1.123 0 1.1625 Differential SSTL-18 Class I 50 50 1.660 0.790 0 0.83 Differential SSTL-18 Class II 25 25 1.660 0.790 0 0.83 1.5-V differential HSTL Class I 50 1.375 0.648 0 0.6875 1.5-V differential HSTL Class II 25 1.375 0.648 0 0.6875 1.8-V differential HSTL Class I 50 1.660 0.790 0 0.83 25 1.660 0.790 1.8-V differential HSTL Class II 0 0.83 LVDS 100 2.325 0 1.1625 LVPECL 100 3.135 0 1.5675 Notes to Table 4-53: (1) (2) (3) (4) (5) Input measurement point at internal node is 0.5 VCCINT. Output measuring point for VMEAS at buffer output is 0.5 VCCIO. Input stimulus edge rate is 0 to VCC in 0.2 ns (internal signal) from the driver preceding the I/O buffer. Less than 50-mV ripple on VCCIO and VCCPD, VCCINT = 1.15 V with less than 30-mV ripple. VCCPD = 2.97 V, less than 50-mV ripple on VCCIO and VCCPD, VCCINT = 1.15 V. 4-62 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Figures 4-9 and 4-10 show the measurement setup for output disable and output enable timing. Figure 4-9. Measurement Setup for txz Note (1) tXZ, Driving High to Tristate Enable OE OE 1/2 VCCINT Dout Din 100 Disable "1" Din 100 mv Dout thz GND tXZ, Driving Low to Tristate Enable OE 100 Disable 1/2 VCCINT OE Dout Din Din Dout "0" tlz VCCIO 100 mv Note to Figure 4-9: (1) Altera Corporation June 2009 VCCINT is 1.12 V for this measurement. 4-63 Stratix II GX Device Handbook, Volume 1 Timing Model Figure 4-10. Measurement Setup for tzx tZX, Tristate to Driving High Disable OE OE Enable 1/2 VCCINT Dout Din "1" Din 1 M tzh Dout 1/2 VCCIO tZX, Tristate to Driving Low Disable Enable 1/2 VCCINT OE 1 M OE Dout Din "0" Din 1/2 VCCIO tzl Dout Table 4-54 specifies the input timing measurement setup. Table 4-54. Timing Measurement Methodology for Input Pins (Part 1 of 2) Notes (1), (2), (3), (4) Measurement Conditions Measurement Point I/O Standard VCCIO (V) LVTTL (5) VREF (V) 3.135 Edge Rate (ns) VMEAS (V) 3.135 1.5675 LVCMOS (5) 3.135 3.135 1.5675 2.5 V (5) 2.375 2.375 1.1875 1.8 V (5) 1.710 1.710 0.855 1.5 V (5) 1.425 1.425 0.7125 PCI (6) 2.970 2.970 1.485 PCI-X (6) 2.970 2.970 1.485 SSTL-2 Class I 2.325 1.163 2.325 1.1625 SSTL-2 Class II 2.325 1.163 2.325 1.1625 SSTL-18 Class I 1.660 0.830 1.660 0.83 SSTL-18 Class II 1.660 0.830 1.660 0.83 1.8-V HSTL Class I 1.660 0.830 1.660 0.83 4-64 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-54. Timing Measurement Methodology for Input Pins (Part 2 of 2) Notes (1), (2), (3), (4) Measurement Conditions Measurement Point I/O Standard VCCIO (V) VREF (V) Edge Rate (ns) VMEAS (V) 1.8-V HSTL Class II 1.660 0.830 1.660 0.83 1.5-V HSTL Class I 1.375 0.688 1.375 0.6875 1.5-V HSTL Class II 1.375 0.688 1.375 0.6875 1.2-V HSTL with OCT 1.140 0.570 1.140 0.570 Differential SSTL-2 Class I 2.325 1.163 2.325 1.1625 Differential SSTL-2 Class II 2.325 1.163 2.325 1.1625 Differential SSTL-18 Class I 1.660 0.830 1.660 0.83 Differential SSTL-18 Class II 1.660 0.830 1.660 0.83 1.5-V differential HSTL Class I 1.375 0.688 1.375 0.6875 1.5-V differential HSTL Class II 1.375 0.688 1.375 0.6875 1.8-V differential HSTL Class I 1.660 0.830 1.660 0.83 1.8-V differential HSTL Class II 1.660 0.830 1.660 0.83 LVDS 2.325 0.100 1.1625 LVPECL 3.135 0.100 1.5675 Notes to Table 4-54: (1) (2) (3) (4) (5) (6) Input buffer sees no load at buffer input. Input measuring point at buffer input is 0.5 VCCIO. Output measuring point is 0.5 VCC at internal node. Input edge rate is 1 V/ns. Less than 50-mV ripple on VCCIO and VCCPD, VCCINT = 1.15 V with less than 30-mV ripple. VCCPD = 2.97 V, less than 50-mV ripple on VCCIO and VCCPD, VCCINT = 1.15 V. Altera Corporation June 2009 4-65 Stratix II GX Device Handbook, Volume 1 Timing Model Table 4-55 shows the Stratix II GX performance for some common designs. All performance values were obtained with the Quartus II software compilation of LPM or MegaCore functions for FIR and FFT designs. Table 4-55. Stratix II GX Performance Notes (Part 1 of 3) Note (1) Resources Used Performance ALUTs TriMatrix Memory Blocks DSP Blocks -3 Speed Grade (2) -3 Speed Grade (3) -4 Speed Grade -5 Speed Grade Units 16-to-1 multiplexer (4) 21 0 0 657.03 620.73 589.62 477.09 MHz 32-to-1 multiplexer (4) 38 0 0 534.75 517.33 472.81 369.27 MHz 16-bit counter 16 0 0 568.18 539.66 507.61 422.47 MHz 64-bit counter 64 0 0 242.54 231.0 217.77 180.31 MHz Simple dual-port RAM 32 x 18bit 0 1 0 500.0 476.19 447.22 373.13 MHz FIFO 32 x 18 bit 22 1 0 500.00 476.19 460.82 373.13 MHz Simple dualTriMatrix port RAM 128 x Memory M4K block 36bit 0 1 0 540.54 515.46 483.09 401.6 MHz True dual-port RAM 128 x 18bit 0 1 0 540.54 515.46 483.09 401.6 MHz FIFO 128 x 36 bit 22 1 0 524.10 500.25 466.41 381.38 MHz Applications LE TriMatrix Memory M512 block 4-66 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-55. Stratix II GX Performance Notes (Part 2 of 3) Note (1) Resources Used Performance ALUTs TriMatrix Memory Blocks DSP Blocks -3 Speed Grade (2) -3 Speed Grade (3) -4 Speed Grade -5 Speed Grade Units Single port TriMatrix RAM 4K x Memory MegaRAM 144bit block Simple dualport RAM 4K x 144bit 0 1 0 349.65 333.33 313.47 261.09 MHz 0 1 0 420.16 400.0 375.93 313.47 MHz True dual-port RAM 4K x 144 bit 0 1 0 349.65 333.33 313.47 261.09 MHz Single port RAM 8K x 72 bit 0 1 0 354.6 337.83 317.46 263.85 MHz Simple dualport RAM 8K x 72 bit 0 1 0 420.16 400.0 375.93 313.47 MHz True dual-port RAM 8K x 72 bit 0 1 0 349.65 333.33 313.47 261.09 MHz Single port RAM 16K x 36 bit 0 1 0 364.96 347.22 325.73 271.73 MHz Simple dualport RAM 16K x 36 bit 0 1 0 420.16 400.0 375.93 313.47 MHz True dual-port RAM 16K x 36 bit 0 1 0 359.71 342.46 322.58 268.09 MHz Single port RAM 32K x 18 bit 0 1 0 364.96 347.22 325.73 271.73 MHz Simple dualport RAM 32K x 18 bit 0 1 0 420.16 400.0 375.93 313.47 MHz True dual-port RAM 32K x 18 bit 0 1 0 359.71 342.46 322.58 268.09 MHz Applications Altera Corporation June 2009 4-67 Stratix II GX Device Handbook, Volume 1 Timing Model Table 4-55. Stratix II GX Performance Notes (Part 3 of 3) Note (1) Resources Used Performance ALUTs TriMatrix Memory Blocks DSP Blocks -3 Speed Grade (2) -3 Speed Grade (3) -4 Speed Grade -5 Speed Grade Units Single port RAM TriMatrix 64K x 9 bit Memory MegaRAM Simple block dual-port RAM (cont.) 64K x 9 bit 0 1 0 364.96 347.22 325.73 271.73 MHz 0 1 0 420.16 400.0 375.93 313.47 MHz True dual-port RAM 64K x 9 bit 0 1 0 359.71 342.46 322.58 268.09 MHz 9 x 9-bit multiplier (5) 0 0 1 430.29 409.16 385.2 320.1 MHz 18 x 18-bit multiplier (5) 0 0 1 410.17 390.01 367.1 305.06 MHz 18 x 18-bit multiplier (7) 0 0 1 450.04 428.08 403.22 335.12 MHz 36 x 36-bit multiplier (5) 0 0 1 250.0 238.15 224.01 186.6 MHz 36 x 36-bit multiplier (6) 0 0 1 410.17 390.01 367.1 305.06 MHz 18-bit, 4-tap FIR filter 0 0 1 410.17 390.01 367.1 305.06 MHz Applications DSP block Notes to Table 4-55: (1) (2) (3) (4) (5) (6) (7) These design performance numbers were obtained using the Quartus II software. This column refers to -3 speed grades for EP2SGX30, EP2SGX60, and EP2SGX90 devices. This column refers to -3 speed grades for EP2SGX130 devices. This application uses registered inputs and outputs. This application uses registered multiplier input and output stages within the DSP block. This application uses registered multiplier input, pipeline, and output stages within the DSP block. This application uses registered multiplier inputs with outputs of the multiplier stage feeding the accumulator or subtractor within the DSP block. 4-68 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Internal Timing Parameters Refer to Tables 4-56 through 4-61 for internal timing parameters. Table 4-56. LE_FF Internal Timing Microparameters Symbol -3 Speed Grade (1) Parameter Min -3 Speed Grade (2) Max Min -4 Speed Grade Max Min Max -5 Speed Grade Min Unit Max tSU LE register setup time before clock 90 95 101 121 ps tH LE register hold time after clock 149 157 167 200 ps tCO LE register clock-to-output delay 62 tCLR Minimum clear pulse width 204 214 227 273 ps tPRE Minimum preset pulse width 204 214 227 273 ps tCLKL Minimum clock low time 612 642 683 820 ps tCLKH Minimum clock high time 612 642 683 820 ps 94 62 99 62 105 62 127 tL U T 170 378 170 397 170 422 170 507 tA D D E R 372 619 372 650 372 691 372 829 ps Notes to Table 4-56: (1) (2) This column refers to -3 speed grades for EP2SGX30, EP2SGX60, and EP2SGX90 devices. This column refers to -3 speed grades for EP2SGX130 devices. Table 4-57. IOE Internal Timing Microparameters (Part 1 of 2) Symbol Parameter -3 Speed Grade (1) Min Max -3 Speed Grade (2) Min Max -4 Speed Grade Min Max -5 Speed Grade Min Unit Max tSU IOE input and output register setup time before clock 122 128 136 163 ps tH IOE input and output register hold time after clock 72 75 80 96 ps tCO IOE input and output register clock-to-output delay 101 Altera Corporation June 2009 169 101 177 101 188 101 226 ps 4-69 Stratix II GX Device Handbook, Volume 1 Timing Model Table 4-57. IOE Internal Timing Microparameters (Part 2 of 2) Symbol -3 Speed Grade (1) Parameter -3 Speed Grade (2) -4 Speed Grade -5 Speed Grade Unit Min Max Min Max Min Max Min Max tPIN2COMBOUT_R Row input pin to IOE combinational output 410 760 410 798 410 848 410 1018 ps tPIN2COMBOUT_C Column input pin to IOE combinational output 428 787 428 825 428 878 428 1054 ps tCOMBIN2PIN_R Row IOE data input to combinational output pin 1101 2026 1101 2127 1101 2261 1101 2439 ps tCOMBIN2PIN_C Column IOE data input to combinational output pin 991 1854 991 1946 991 2069 991 2246 ps tCLR Minimum clear pulse width 200 210 223 268 ps tPRE Minimum preset pulse width 200 210 223 268 ps tCLKL Minimum clock low time 600 630 669 804 ps tCLKH Minimum clock high time 600 630 669 804 ps (1) (2) This column refers to -3 speed grades for EP2SGX30, EP2SGX60, and EP2SGX90 devices. This column refers to -3 speed grades for EP2SGX130 devices. Table 4-58. DSP Block Internal Timing Microparameters (Part 1 of 2) Symbol Parameter -3 Speed Grade (1) Min Max -3 Speed Grade (2) Min Max -4 Speed Grade Min Max -5 Speed Grade Min Unit Max tSU Input, pipeline, and output register setup time before clock 50 52 55 67 ps tH Input, pipeline, and output register hold time after clock 180 189 200 241 ps tCO Input, pipeline, and output register clock-to-output delay 0 4-70 Stratix II GX Device Handbook, Volume 1 0 0 0 0 0 0 0 ps Altera Corporation June 2009 DC and Switching Characteristics Table 4-58. DSP Block Internal Timing Microparameters (Part 2 of 2) Symbol Parameter -3 Speed Grade (1) -3 Speed Grade (2) -4 Speed Grade -5 Speed Grade Min Max Min Max Min Max Min Max Unit tINREG2PIPE9 Input register to DSP block pipeline register in 9 x 9-bit mode 1312 2030 1312 2131 1312 2266 1312 2720 ps tINREG2PIPE18 Input register to DSP block pipeline register in 18 x 18bit mode 1302 2010 1302 2110 1302 2244 1302 2693 ps tINREG2PIPE36 Input register to DSP block pipeline register in 36 x 36bit mode 1302 2010 1302 2110 1302 2244 1302 2693 ps tPIPE2OUTREG2ADD DSP block pipeline register to output register delay in two-multipliers adder mode 924 1450 924 1522 924 1618 924 1943 ps tPIPE2OUTREG4ADD DSP block pipeline register to output register delay in four-multipliers adder mode 1134 1850 1134 1942 1134 2065 1134 2479 ps tPD9 Combinational input to output delay for 9x9 2100 2880 2100 3024 2100 3214 2100 3859 ps tPD18 Combinational input to output delay for 18 x 18 2110 2990 2110 3139 2110 3337 2110 4006 ps tPD36 Combinational input to output delay for 36 x 36 2939 4450 2939 4672 2939 4967 2939 5962 ps tCLR Minimum clear pulse width 2212 2322 2469 2964 ps tCLKL Minimum clock low time 1190 1249 1328 1594 ps tCLKH Minimum clock high time 1190 1249 1328 1594 ps (1) (2) This column refers to -3 speed grades for EP2SGX30, EP2SGX60, and EP2SGX90 devices. This column refers to -3 speed grades for EP2SGX130 devices. Altera Corporation June 2009 4-71 Stratix II GX Device Handbook, Volume 1 Timing Model Table 4-59. M512 Block Internal Timing Microparameters (Part 1 of 2) Symbol -3 Speed Grade(2) Parameter -3 Speed Grade -4 Speed Grade -5 Speed Grade (3) Unit Min Max Min Max Min Max Min Max 2318 2089 2433 2089 2587 2089 3104 tM512RC Synchronous read cycle time 2089 tM512WERESU Write or read enable setup time before clock 22 23 24 29 ps tM512WEREH Write or read enable hold time after clock 203 213 226 272 ps tM512DATASU Data setup time before clock 22 23 24 29 ps tM512DATAH Data hold time after clock 203 213 226 272 ps tM512WADDRSU Write address setup time before clock 22 23 24 29 ps tM512WADDRH Write address hold time after clock 203 213 226 272 ps tM512RADDRSU Read address setup time before clock 22 23 24 29 ps tM512RADDRH Read address hold time after clock 203 213 226 272 ps tM512DATACO1 Clock-to-output delay when using output registers 298 478 298 501 298 533 298 640 ps tM512DATACO2 Clock-to-output delay without output registers 2102 2345 2102 2461 2102 2616 2102 3141 ps tM512CLKL Minimum clock low time 1315 1380 1468 1762 ps tM512CLKH Minimum clock high time 1315 1380 1468 1762 ps 4-72 Stratix II GX Device Handbook, Volume 1 ps Altera Corporation June 2009 DC and Switching Characteristics Table 4-59. M512 Block Internal Timing Microparameters (Part 2 of 2) Symbol Parameter -3 Speed Grade(2) Min tM512CLR (1) (2) (3) Minimum clear pulse width Max 144 -3 Speed Grade -4 Speed Grade -5 Speed Grade (3) Unit Min Max 151 Min Max 160 Min Max 192 ps The M512 block fMAX obtained using the Quartus II software does not necessarily equal to 1/TM512RC. This column refers to -3 speed grades for EP2SGX30, EP2SGX60, and EP2SGX90 devices. This column refers to -3 speed grades for EP2SGX130 devices. Table 4-60. M4K Block Internal Timing Microparameters (Part 1 of 2) Symbol Parameter Note (1) -3 Speed Grade -3 Speed Grade -4 Speed Grade -5 Speed Grade (2) (3) Unit Min Max Min Max Min Max Min Max 1462 2240 1462 2351 1462 2500 1462 3000 tM4KRC Synchronous read cycle time tM4KWERESU Write or read enable setup time before clock 22 23 24 29 ps tM4KWEREH Write or read enable hold time after clock 203 213 226 272 ps tM4KBESU Byte enable setup time before clock 22 23 24 29 ps tM4KBEH Byte enable hold time after clock 203 213 226 272 ps tM4KDATAASU A port data setup time before clock 22 23 24 29 ps tM4KDATAAH A port data hold time after clock 203 213 226 272 ps tM4KADDRASU A port address setup time before clock 22 23 24 29 ps tM4KADDRAH A port address hold time after clock 203 213 226 272 ps tM4KDATABSU B port data setup time before clock 22 23 24 29 ps Altera Corporation June 2009 ps 4-73 Stratix II GX Device Handbook, Volume 1 Timing Model Table 4-60. M4K Block Internal Timing Microparameters (Part 2 of 2) Symbol Parameter -3 Speed Grade -3 Speed Grade -4 Speed Grade -5 Speed Grade (2) (3) Unit Min tM4KDATABH Note (1) Min Max Min Max Min Max 203 213 226 272 ps tM4KRADDRBSU B port address setup time before clock 22 23 24 29 ps tM4KRADDRBH B port address hold time after clock 203 213 226 272 ps tM4KDATACO1 Clock-to-output delay when using output registers 334 524 334 549 334 584 334 701 ps tM4KDATACO2 Clock-to-output delay without output registers 1616 2453 1616 2574 1616 2737 1616 3286 ps tM4KCLKH Minimum clock high time 1250 1312 1395 1675 ps tM4KCLKL Minimum clock low time 1250 1312 1395 1675 ps tM4KCLR Minimum clear pulse width 144 151 160 192 ps (1) (2) (3) B port data hold time after clock Max The M512 block fMAX obtained using the Quartus II software does not necessarily equal to 1/TM4KRC. This column refers to -3 speed grades for EP2SGX30, EP2SGX60, and EP2SGX90 devices. This column refers to -3 speed grades for EP2SGX130 devices. Table 4-61. M-RAM Block Internal Timing Microparameters (Part 1 of 2) Symbol Parameter -3 Speed Grade (2) -3 Speed Grade (3) Note (1) -4 Speed Grade -5 Speed Grade Min Max Min Max Min Max Min Max 1866 2774 1866 2911 1866 3096 1866 3716 Unit tMEGARC Synchronous read cycle time tMEGAWERESU Write or read enable setup time before clock 144 151 160 192 ps tMEGAWEREH Write or read enable hold time after clock 39 40 43 52 ps 4-74 Stratix II GX Device Handbook, Volume 1 ps Altera Corporation June 2009 DC and Switching Characteristics Table 4-61. M-RAM Block Internal Timing Microparameters (Part 2 of 2) Symbol Parameter -3 Speed Grade (2) Min Max -3 Speed Grade (3) Min Max Note (1) -4 Speed Grade Min Max -5 Speed Grade Min Unit Max tMEGABESU Byte enable setup time before clock -9 -10 -11 -13 ps tMEGABEH Byte enable hold time after clock 39 40 43 52 ps tMEGADATAASU A port data setup time before clock 50 52 55 67 ps tMEGADATAAH A port data hold time after clock 243 255 271 325 ps tMEGAADDRASU A port address setup time before clock 589 618 657 789 ps tMEGAADDRAH A port address hold time after clock -347 -365 -388 -465 ps tMEGADATABSU B port setup time before clock 50 52 55 67 ps tMEGADATABH B port hold time after clock 243 255 271 325 ps tMEGAADDRBSU B port address setup time before clock 589 618 657 789 ps tMEGAADDRBH B port address hold time after clock -347 -365 -388 -465 ps tMEGADATACO1 Clock-to-output delay when using output registers 480 715 480 749 480 797 480 957 ps tMEGADATACO2 Clock-to-output delay without output registers 1950 2899 1950 3042 1950 3235 1950 3884 ps tMEGACLKL Minimum clock low time 1250 1312 1395 1675 ps tMEGACLKH Minimum clock high time 1250 1312 1395 1675 ps tMEGACLR Minimum clear pulse width 144 151 160 192 ps (1) (2) (3) The M512 block fMAX obtained using the Quartus II software does not necessarily equal to 1/TMEGARC. This column refers to -3 speed grades for EP2SGX30, EP2SGX60, and EP2SGX90 devices. This column refers to -3 speed grades for EP2SGX130 devices. Altera Corporation June 2009 4-75 Stratix II GX Device Handbook, Volume 1 Timing Model Stratix II GX Clock Timing Parameters See Tables 4-62 through 4-78 for Stratix II GX clock timing parameters. Table 4-62. Stratix II GX Clock Timing Parameters Symbol Parameter tCIN Delay from clock pad to I/O input register tCOUT Delay from clock pad to I/O output register tPLLCIN Delay from PLL inclk pad to I/O input register tPLLCOUT Delay from PLL inclk pad to I/O output register EP2SGX30 Clock Timing Parameters Tables 4-63 through 4-66 show the maximum clock timing parameters for EP2SGX30 devices. Table 4-63. EP2SGX30 Column Pins Global Clock Timing Parameters Fast Corner Commercial -3 Speed Grade -4 Speed Grade -5 Speed Grade Units Industrial tC I N 1.615 1.633 2.669 2.968 3.552 ns tC O U T 1.450 1.468 2.427 2.698 3.228 ns Parameter tP L L C I N tP L L C O U T 0.11 0.129 0.428 0.466 0.547 ns -0.055 -0.036 0.186 0.196 0.223 ns Table 4-64. EP2SGX30 Row Pins Global Clock Timing Parameters Fast Corner Industrial Commercial -3 Speed Grade 1.365 1.382 2.280 Parameter tC I N -4 Speed Grade -5 Speed Grade Units 2.535 3.033 ns tC O U T 1.370 1.387 2.276 2.531 3.028 ns tP L L C I N -0.151 -0.136 0.043 0.037 0.032 ns tP L L C O U T -0.146 -0.131 0.039 0.033 0.027 ns 4-76 Stratix II GX Device Handbook, Volume 1 Altera Corporation June 2009 DC and Switching Characteristics Table 4-65. EP2SGX30 Column Pins Regional Clock Timing Parameters Fast Corner Industrial Commercial -3 Speed Grade tC I N 1.493 1.507 2.522 tC O U T 1.353 1.372 2.525 2.809 3.364 ns tP L L C I N 0.087 0.104 0.237 0.253 0.292 ns tP L L C O U T -0.078 -0.061 0.237 0.253 0.29 ns Parameter -4 Speed Grade -5 Speed Grade Units 2.806 3.364 ns Table 4-66. EP2SGX30 Row Pins Regional Clock Timing Parameters Fast Corner Industrial Commercial -3 Speed Grade tC I N 1.246 1.262 2.437 2.712 3.246 ns tC O U T 1.251 1.267 2.437 2.712 3.246 ns tP L L C I N -0.18 -0.167 0.215 0.229 0.263 ns tP L L C O U T -0.175 -0.162 0.215 0.229 0.263 ns Parameter -4 Speed Grade -5 Speed Grade Units EP2SGX60 Clock Timing Parameters Tables 4-67 through 4-70 show the maximum clock timing parameters for EP2SGX60 devices. Table 4-67. EP2SGX60 Column Pins Global Clock Timing Parameters Fast Corner Industrial Commercial -3 Speed Grade tC I N 1.722 1.736 2.940 3.275 3.919 ns tC O U T 1.557 1.571 2.698 3.005 3.595 ns tP L L C I N 0.037 0.051 0.474 0.521 0.613 ns tP L L C O U T -0.128 -0.114 0.232 0.251 0.289 ns Parameter Altera Corporation June 2009 -4 Speed Grade -5 Speed Grade Units 4-77 Stratix II GX Device Handbook, Volume 1 Timing Model Table 4-68. EP2SGX60 Row Pins Global Clock Timing Parameters Fast Corner Industrial Commercial -3 Speed Grade 1.494 1.508 2.582 Parameter tC I N -4 Speed Grade -5 Speed Grade Units 2.875 3.441 ns tC O U T 1.499 1.513 2.578 2.871 3.436 ns tP L L C I N -0.183 -0.168 0.116 0.122 0.135 ns tP L L C O U T -0.178 -0.163 0.112 0.118 0.13 ns Table 4-69. EP2SGX60 Column Pins Regional Clock Timing Parameters Fast Corner Industrial Commercial -3 Speed Grade tC I N 1.577 1.591 2.736 3.048 3.648 ns tC O U T 1.412 1.426 2.740 3.052 3.653 ns tP L L C I N 0.065 0.08 0.334 0.361 0.423 ns -0.1 -0.085 0.334 0.361 0.423 ns Parameter tP L L C O U T -4 Speed Grade -5 Speed Grade Units Table 4-70. EP2SGX60 Row Pins Regional Clock Timing Parameters Fast Corner Industrial Commercial -3 Speed Grade tC I N 1.342 1.355 2.716 3.024 3.622 ns tC O U T 1.347 1.360 2.716 3.024 3.622 ns tP L L C I N -0.18 -0.166 0.326 0.352 0.412 ns tP L L C O U T -0.175 -0.161 0.334 0.361 0.423 ns Parameter 4-78 Stratix II GX Device Handbook, Volume 1 -4 Speed Grade -5 Speed Grade Units Altera Corporation June 2009 DC and Switching Characteristics EP2SGX90 Clock Timing Parameters Tables 4-71 through 4-74 show the maximum clock timing parameters for EP2SGX90 devices. Table 4-71. EP2SGX90 Column Pins Global Clock Timing Parameters Fast Corner Industrial Commercial -3 Speed Grade tC I N 1.861 1.878 3.115 3.465 4.143 ns tC O U T 1.696 1.713 2.873 3.195 3.819 ns tP L L C I N -0.254 -0.237 0.171 0.179 0.206 ns tP L L C O U T -0.419 -0.402 -0.071 -0.091 -0.118 ns Parameter -4 Speed Grade -5 Speed Grade Units Table 4-72. EP2SGX90 Row Pins Global Clock Timing Parameters Fast Corner Commercial -3 Speed Grade -4 Speed Grade -5 Speed Grade Units Industrial tC I N 1.634 1.650 2.768 3.076 3.678 ns tC O U T 1.639 1.655 2.764 3.072 3.673 ns tP L L C I N -0.481 -0.465 -0.189 -0.223 -0.279 ns tP L L C O U T -0.476 -0.46 -0.193 -0.227 -0.284 ns Parameter Table 4-73. EP2SGX90 Column Pins Regional Clock Timing Parameters Fast Corner Industrial Commercial -3 Speed Grade 1.688 1.702 2.896 Parameter tC I N -4 Speed Grade -5 Speed Grade Units 3.224 3.856 ns tC O U T 1.551 1.569 2.893 3.220 3.851 ns tP L L C I N -0.105 -0.089 0.224 0.241 0.254 ns tP L L C O U T -0.27 -0.254 0.224 0.241 0.254 ns Altera Corporation June 2009 4-79 Stratix II GX Device Handbook, Volume 1 Timing Model Table 4-74. EP2SGX90 Row Pins Regional Clock Timing Parameters Fast Corner Industrial Commercial -3 Speed Grade 1.444 1.461 2.792 Parameter tC I N -4 Speed Grade -5 Speed Grade Units 3.108 3.716 ns tC O U T 1.449 1.466 2.792 3.108 3.716 ns tP L L C I N -0.348 -0.333 0.204 0.217 0.243 ns tP L L C O U T -0.343 -0.328 0.212 0.217 0.254 ns EP2SGX130 Clock Timing Parameters Tables 4-75 through 4-78 show the maximum clock timing parameters for EP2SGX130 devices. Table 4-75. EP2SGX130 Column Pins Global Clock Timing Parameters Fast Corner Industrial Commercial -3 Speed Grade tC I N 1.980 1.998 3.491 3.706 4.434 ns tC O U T 1.815 1.833 3.237 3.436 4.110 ns tP L L C I N -0.027 -0.009 0.307 0.322 0.376 ns tP L L C O U T -0.192 -0.174 0.053 0.052 0.052 ns Parameter -4 Speed Grade -5 Speed Grade Units Table 4-76. EP2SGX130 Row Pins Global Clock Timing Parameters Fast Corner Industrial Commercial -3 Speed Grade tC I N 1.741 1.759 3.112 3.303 3.950 ns tC O U T 1.746 1.764 3.108 3.299 3.945 ns tP L L C I N -0.261 -0.243 -0.089 -0.099 -0.129 ns tP L L C O U T -0.256 -0.238 -0.093 -0.103 -0.134 ns Parameter 4-80 Stratix II GX Device Handbook, Volume 1 -4 Speed Grade -5 Speed Grade Units Altera Corporation June 2009 DC and Switching Characteristics Table 4-77. EP2SGX130 Column Pins Regional Clock Timing Parameters Fast Corner Industrial Commercial -3 Speed Grade tC I N 1.815 1.834 3.218 3.417 4.087 ns tC O U T 1.650 1.669 3.218 3.417 4.087 ns tP L L C I N 0.116 0.134 0.349 0.364 0.426 ns tP L L C O U T -0.049 -0.031 0.361 0.378 0.444 ns Parameter -4 Speed Grade -5 Speed Grade Units Table 4-78. EP2SGX130 Row Pins Regional Clock Timing Parameters Fast Corner Industrial Commercial -3 Speed Grade tC I N 1.544 1.560 3.195 3.395 4.060 ns tC O U T 1.549 1.565 3.195 3.395 4.060 ns tP L L C I N -0.149 -0.132 0.34 0.356 0.417 ns tP L L C O U T -0.144 -0.127 0.342 0.356 0.417 ns Parameter -4 Speed Grade -5 Speed Grade Units Clock Network Skew Adders The Quartus II software models skew within dedicated clock networks such as global and regional clocks. Therefore, the intra-clock network skew adder is not specified. Table 4-79 specifies the intra-clock skew between any two clock networks driving any registers in the Stratix II GX device. Table 4-79. Clock Network Specifications Name (Part 1 of 2) Max Unit Clock skew adder EP2SGX30 (1) Inter-clock network, same side 50 ps Inter-clock network, entire chip 100 ps Clock skew adder EP2SGX60 (1) Inter-clock network, same side 50 ps Inter-clock network, entire chip 100 ps Clock skew adder EP2SGX90 (1) Inter-clock network, same side 55 ps Inter-clock network, entire chip 110 ps Altera Corporation June 2009 Description Min Typ 4-81 Stratix II GX Device Handbook, Volume 1 Table 4-79. Clock Network Specifications Name Clock skew adder EP2SGX130 (1) (1) (Part 2 of 2) Description Min Typ Max Unit Inter-clock network, same side 63 ps Inter-clock network, entire chip 125 ps This is in addition to intra-clock network skew, which is modeled in the Quartus II software. IOE Programmable Delay See Tables 4-80 and 4-81 for IOE programmable delay. Table 4-80. Stratix II GX IOE Programmable Delay on Column Pins Parameter Input delay from pin to internal cells Paths Affected Available Settings Pad to I/O dataout to core Pad to Input delay from I/O input register pin to input register Delay from output register to output pin I/O output register to pad tXZ, tZX Output enable pin delay (1) (2) (3) Minimum Timing -3 Speed Grade (2) Note (1) -3 Speed Grade (3) -4 Speed Grade -5 Speed Grade Unit Min Offset Max Offset Min Offset Max Offset Min Offset Max Offset Min Offset Max Offset Min Offset Max Offset 8 0 1781 0 2881 0 3025 0 3217 0 3,860 ps 64 0 2053 0 3275 0 3439 0 3657 0 4388 ps 2 0 332 0 500 0 525 0 559 0 670 ps 2 0 320 0 483 0 507 0 539 0 647 ps The incremental values for the settings are generally linear. For the exact delay associated with each setting, use the latest version of the Quartus II software. This column refers to -3 speed grades for EP2SGX30, EP2SGX60, and EP2SGX90 devices. This column refers to -3 speed grades for EP2SGX130 devices. Table 4-81. Stratix II GX IOE Programmable Delay on Row Pins Minimum Timing Paths Affected Available Settings Input delay from pin to internal cells Pad to I/O dataout to logic array 8 0 1782 Input delay from pin to input register Pad to I/O input register 64 0 Delay from output register to output pin I/O output register to pad 2 Output enable pin delay tXZ, tZX 2 Parameter (1) -3 Speed Grade Note (1) -3 Speed Grade -4 Speed Grade -5 Speed Grade Unit Min Max Offset Offset Min Offset Max Min Offset Offset Max Offset Min Max Min Max Offset Offset Offset Offset 0 2876 0 3020 0 3212 0 3853 ps 2054 0 3270 0 3434 0 3652 0 4381 ps 0 332 0 500 0 525 0 559 0 670 ps 0 320 0 483 0 507 0 539 0 647 ps The incremental values for the settings are generally linear. For the exact delay associated with each setting, use the latest version of the Quartus II software. Default Capacitive Loading of Different I/O Standards See Table 4-82 for default capacitive loading of different I/O standards. Table 4-82. Default Loading of Different I/O Standards for Stratix II GX Devices (Part 1 of 2) I/O Standard Capacitive Load Unit LVTTL 0 pF LVCMOS 0 pF 2.5 V 0 pF 1.8 V 0 pF 1.5 V 0 pF PCI 10 pF PCI-X 10 pF SSTL-2 Class I 0 pF SSTL-2 Class II 0 pF Table 4-82. Default Loading of Different I/O Standards for Stratix II GX Devices (Part 2 of 2) I/O Standard Capacitive Load Unit SSTL-18 Class I 0 pF SSTL-18 Class II 0 pF 1.5-V HSTL Class I 0 pF 1.5-V HSTL Class II 0 pF 1.8-V HSTL Class I 0 pF 1.8-V HSTL Class II 0 pF Differential SSTL-2 Class I 0 pF Differential SSTL-2 Class II 0 pF Differential SSTL-18 Class I 0 pF Differential SSTL-18 Class II 0 pF 1.5-V differential HSTL Class I 0 pF 1.5-V differential HSTL Class II 0 pF 1.8-V differential HSTL Class I 0 pF 1.8-V differential HSTL Class II 0 pF LVDS 0 pF I/O Delays See Tables 4-83 through 4-87 for I/O delays. Table 4-83. I/O Delay Parameters Symbol Parameter tDIP Delay from I/O datain to output pad tOP Delay from I/O output register to output pad tPCOUT Delay from input pad to I/O dataout to core tPI Delay from input pad to I/O input register Table 4-84. Stratix II GX I/O Input Delay for Column Pins (Part 1 of 3) I/O Standard LVTTL Parameter Fast Corner Industrial/ Commercial -3 Speed Grade (2) -3 Speed Grade (3) -4 Speed Grade tPI 707 1223 1282 1364 1637 ps tPCOUT 428 787 825 878 1054 ps -5 Speed Unit Grade Table 4-84. Stratix II GX I/O Input Delay for Column Pins (Part 2 of 3) I/O Standard 2.5 V 1.8 V 1.5 V LVCMOS SSTL-2 Class I SSTL-2 Class II SSTL-18 Class I SSTL-18 Class II 1.5-V HSTL Class I 1.5-V HSTL Class II 1.8-V HSTL Class I 1.8-V HSTL Class II PCI PCI-X Differential SSTL-2 Class I (1) Parameter Fast Corner Industrial/ Commercial -3 Speed Grade (2) -3 Speed Grade (3) -4 Speed Grade tPI 717 1210 1269 1349 1619 ps tPCOUT 438 774 812 863 1036 ps tPI 783 1366 1433 1523 1829 ps tPCOUT 504 930 976 1037 1246 ps -5 Speed Unit Grade tPI 786 1436 1506 1602 1922 ps tPCOUT 507 1000 1049 1116 1339 ps tPI 707 1223 1282 1364 1637 ps tPCOUT 428 787 825 878 1054 ps tPI 530 818 857 912 1094 ps tPCOUT 251 382 400 426 511 ps tPI 530 818 857 912 1094 ps tPCOUT 251 382 400 426 511 ps tPI 569 898 941 1001 1201 ps tPCOUT 290 462 484 515 618 ps tPI 569 898 941 1001 1201 ps tPCOUT 290 462 484 515 618 ps tPI 587 993 1041 1107 1329 ps tPCOUT 308 557 584 621 746 ps tPI 587 993 1041 1107 1329 ps tPCOUT 308 557 584 621 746 ps tPI 569 898 941 1001 1201 ps tPCOUT 290 462 484 515 618 ps tPI 569 898 941 1001 1201 ps tPCOUT 290 462 484 515 618 ps tPI 712 1214 1273 1354 1625 ps tPCOUT 433 778 816 868 1042 ps tP I 712 1214 1273 1354 1625 ps tPCOUT 433 778 816 868 1042 ps tPI 530 818 857 912 1094 ps tPCOUT 251 382 400 426 511 ps Table 4-84. Stratix II GX I/O Input Delay for Column Pins (Part 3 of 3) I/O Standard Differential SSTL-2 Class II (1) Differential SSTL-18 Class I (1) Differential SSTL-18 Class II (1) 1.8-V differential HSTL Class I (1) 1.8-V differential HSTL Class II (1) 1.5-V differential HSTL Class I (1) 1.5-V differential HSTL Class II (1) (1) (2) (3) Parameter Fast Corner Industrial/ Commercial -3 Speed Grade (2) -3 Speed Grade (3) -4 Speed Grade tPI 530 818 857 912 tPCOUT 251 382 400 tPI 569 898 941 tPCOUT 290 462 484 -5 Speed Unit Grade 1094 ps 426 511 ps 1001 1201 ps 515 618 ps tPI 569 898 941 1001 1201 ps tPCOUT 290 462 484 515 618 ps tPI 569 898 941 1001 1201 ps tPCOUT 290 462 484 515 618 ps tPI 569 898 941 1001 1201 ps tPCOUT 290 462 484 515 618 ps tPI 587 993 1041 1107 1329 ps tPCOUT 308 557 584 621 746 ps tPI 587 993 1041 1107 1329 ps tPCOUT 308 557 584 621 746 ps These I/O standards are only supported on DQS pins. This column refers to -3 speed grades for EP2SGX30, EP2SGX60, and EP2SGX90 devices. This column refers to -3 speed grades for EP2SGX130 devices. Table 4-85. Stratix II GX I/O Input Delay for Row Pins (Part 1 of 3) I/O Standard LVTTL 2.5 V 1.8 V 1.5 V Parameter Fast Corner Industrial/ Commercial -3 Speed Grade (2) -3 Speed Grade (3) -4 Speed Grade -5 Speed Grade Unit tPI 749 1287 1350 1435 1723 ps tPCOUT 410 760 798 848 1018 ps tPI 761 1273 1335 1419 1704 ps tPCOUT 422 746 783 832 999 ps tPI 827 1427 1497 1591 1911 ps tPCOUT 488 900 945 1004 1206 ps tPI 830 1498 1571 1671 2006 ps tPCOUT 491 971 1019 1084 1301 ps Table 4-85. Stratix II GX I/O Input Delay for Row Pins (Part 2 of 3) I/O Standard LVCMOS SSTL-2 Class I SSTL-2 Class II SSTL-18 Class I SSTL-18 Class II 1.5-V HSTL Class I 1.5-V HSTL Class II 1.8-V HSTL Class I 1.8-V HSTL Class II PCI PCI-X LVDS (1) HyperTransport Differential SSTL-2 Class I Differential SSTL-2 Class II Parameter Fast Corner Industrial/ Commercial -3 Speed Grade (2) -3 Speed Grade (3) -4 Speed Grade -5 Speed Grade Unit tPI 749 1287 1350 1435 1723 ps tPCOUT 410 760 798 848 1018 ps tPI 573 879 921 980 1176 ps tPCOUT 234 352 369 393 471 ps tPI 573 879 921 980 1176 ps tPCOUT 234 352 369 393 471 ps tPI 605 960 1006 1070 1285 ps tPCOUT 266 433 454 483 580 ps tPI 605 960 1006 1070 1285 ps tPCOUT 266 433 454 483 580 ps tPI 631 1056 1107 1177 1413 ps tPCOUT 292 529 555 590 708 ps tPI 631 1056 1107 1177 1413 ps tPCOUT 292 529 555 590 708 ps tPI 605 960 1006 1070 1285 ps tPCOUT 266 433 454 483 580 ps tPI 605 960 1006 1070 1285 ps tPCOUT 266 433 454 483 580 ps tPI 830 1498 1571 1671 2006 ps tPCOUT 491 971 1019 1084 1301 ps tPI 830 1498 1571 1671 2006 ps tPCOUT 491 971 1019 1084 1301 ps tPI 540 948 994 1057 1269 ps tPCOUT 201 421 442 470 564 ps tPI 540 948 994 1057 1269 ps tPCOUT 201 421 442 470 564 ps tPI 573 879 921 980 1176 ps tPCOUT 234 352 369 393 471 ps tPI 573 879 921 980 1176 ps tPCOUT 234 352 369 393 471 ps Table 4-85. Stratix II GX I/O Input Delay for Row Pins (Part 3 of 3) I/O Standard Differential SSTL-18 Class I Differential SSTL-18 Class II 1.8-V differential HSTL Class I 1.8-V differential HSTL Class II 1.5-V differential HSTL Class I 1.5-V differential HSTL Class II (1) (2) (3) Parameter Fast Corner Industrial/ Commercial -3 Speed Grade (2) -3 Speed Grade (3) -4 Speed Grade -5 Speed Grade Unit tPI 605 960 1006 1070 1285 ps tPCOUT 266 433 454 483 580 ps tPI 605 960 1006 1070 1285 ps tPCOUT 266 433 454 483 580 ps tPI 605 960 1006 1070 1285 ps tPCOUT 266 433 454 483 580 ps tPI 605 960 1006 1070 1285 ps tPCOUT 266 433 454 483 580 ps tPI 631 1056 1107 1177 1413 ps tPCOUT 292 529 555 590 708 ps tPI 631 1056 1107 1177 1413 ps tPCOUT 292 529 555 590 708 ps The parameters are only available on the left side of the device. This column refers to -3 speed grades for EP2SGX30, EP2SGX60, and EP2SGX90 devices. This column refers to -3 speed grades for EP2SGX130 devices. Table 4-86. Stratix II GX I/O Output Delay for Column Pins (Part 1 of 7) I/O Standard LVTTL Drive Parameter Strength 4 mA 8 mA 12 mA 16 mA 20 mA 24 mA (1) LVCMOS 4 mA 8 mA 12 mA 16 mA 20 mA 24 mA (1) Fast Corner -3 Speed Industrial/ Grade (3) Commercial -3 Speed Grade (4) -4 Speed Grade -5 Speed Grade Unit tOP 1236 2351 2467 2624 2820 ps tDIP 1258 2417 2537 2698 2910 ps tOP 1091 2036 2136 2272 2448 ps tDIP 1113 2102 2206 2346 2538 ps tOP 1024 2036 2136 2272 2448 ps tDIP 1046 2102 2206 2346 2538 ps tOP 998 1893 1986 2112 2279 ps tDIP 1020 1959 2056 2186 2369 ps tOP 976 1787 1875 1994 2154 ps tDIP 998 1853 1945 2068 2244 ps tOP 969 1788 1876 1995 2156 ps tDIP 991 1854 1946 2069 2246 ps tOP 1091 2036 2136 2272 2448 ps tDIP 1113 2102 2206 2346 2538 ps tOP 999 1786 1874 1993 2153 ps tDIP 1021 1852 1944 2067 2243 ps tOP 971 1720 1805 1919 2075 ps tDIP 993 1786 1875 1993 2165 ps tOP 978 1693 1776 1889 2043 ps tDIP 1000 1759 1846 1963 2133 ps tOP 965 1677 1759 1871 2025 ps tDIP 987 1743 1829 1945 2115 ps tOP 954 1659 1741 1851 2003 ps tDIP 976 1725 1811 1925 2093 ps Table 4-86. Stratix II GX I/O Output Delay for Column Pins (Part 2 of 7) I/O Standard 2.5 V Drive Parameter Strength 4 mA 8 mA 12 mA 16 mA (1) 1.8 V 2 mA 4 mA 6 mA 8 mA 10 mA 12 mA (1) 1.5 V 2 mA 4 mA 6 mA 8 mA (1) Fast Corner -3 Speed Industrial/ Grade (3) Commercial -3 Speed Grade (4) -4 Speed Grade -5 Speed Grade Unit tOP 1053 2063 2165 2302 2480 ps tDIP 1075 2129 2235 2376 2570 ps tOP 1001 1841 1932 2054 2218 ps tDIP 1023 1907 2002 2128 2308 ps tOP 980 1742 1828 1944 2101 ps tDIP 1002 1808 1898 2018 2191 ps tOP 962 1679 1762 1873 2027 ps tDIP 984 1745 1832 1947 2117 ps tOP 1093 2904 3048 3241 3472 ps tDIP 1115 2970 3118 3315 3562 ps tOP 1098 2248 2359 2509 2698 ps tDIP 1120 2314 2429 2583 2788 ps tOP 1022 2024 2124 2258 2434 ps tDIP 1044 2090 2194 2332 2524 ps tOP 1024 1947 2043 2172 2343 ps tDIP 1046 2013 2113 2246 2433 ps tOP 978 1882 1975 2100 2266 ps tDIP 1000 1948 2045 2174 2356 ps tOP 979 1833 1923 2045 2209 ps tDIP 1001 1899 1993 2119 2299 ps tOP 1073 2505 2629 2795 3002 ps tDIP 1095 2571 2699 2869 3092 ps tOP 1009 2023 2123 2257 2433 ps tDIP 1031 2089 2193 2331 2523 ps tOP 1012 1923 2018 2146 2315 ps tDIP 1034 1989 2088 2220 2405 ps tOP 971 1878 1970 2095 2262 ps tDIP 993 1944 2040 2169 2352 ps Table 4-86. Stratix II GX I/O Output Delay for Column Pins (Part 3 of 7) I/O Standard SSTL-2 Class I Drive Parameter Strength 8 mA 12 mA (1) SSTL-2 Class II 16 mA 20 mA 24 mA (1) SSTL-18 Class I 4 mA 6 mA 8 mA 10 mA 12 mA (1) SSTL-18 Class II 8 mA 16 mA 18 mA 20 mA (1) Fast Corner -3 Speed Industrial/ Grade (3) Commercial -3 Speed Grade (4) -4 Speed Grade -5 Speed Grade Unit tOP 957 1715 1799 1913 2041 ps tDIP 979 1781 1869 1987 2131 ps tOP 940 1672 1754 1865 1991 ps tDIP 962 1738 1824 1939 2081 ps tOP 918 1609 1688 1795 1918 ps tDIP 940 1675 1758 1869 2008 ps tOP 919 1598 1676 1783 1905 ps tDIP 941 1664 1746 1857 1995 ps tOP 915 1596 1674 1781 1903 ps tDIP 937 1662 1744 1855 1993 ps tOP 953 1690 1773 1886 2012 ps tDIP 975 1756 1843 1960 2102 ps tOP 958 1656 1737 1848 1973 ps tDIP 980 1722 1807 1922 2063 ps tOP 937 1640 1721 1830 1954 ps tDIP 959 1706 1791 1904 2044 ps tOP 942 1638 1718 1827 1952 ps tDIP 964 1704 1788 1901 2042 ps tOP 936 1626 1706 1814 1938 ps tDIP 958 1692 1776 1888 2028 ps tOP 925 1597 1675 1782 1904 ps tDIP 947 1663 1745 1856 1994 ps tOP 937 1578 1655 1761 1882 ps tDIP 959 1644 1725 1835 1972 ps tOP 933 1585 1663 1768 1890 ps tDIP 955 1651 1733 1842 1980 ps tOP 933 1583 1661 1766 1888 ps tDIP 955 1649 1731 1840 1978 ps Table 4-86. Stratix II GX I/O Output Delay for Column Pins (Part 4 of 7) I/O Standard 1.8-V HSTL Class I Drive Parameter Strength 4 mA 6 mA 8 mA 10 mA 12 mA (1) 1.8-V HSTL Class II 16 mA 18 mA 20 mA (1) 1.5-V HSTL Class I 4 mA 6 mA 8 mA 10 mA 12 mA (1) Fast Corner -3 Speed Industrial/ Grade (3) Commercial -3 Speed Grade (4) -4 Speed Grade -5 Speed Grade Unit tOP 956 1608 1687 1794 1943 ps tDIP 978 1674 1757 1868 2033 ps tOP 962 1595 1673 1779 1928 ps tDIP 984 1661 1743 1853 2018 ps tOP 940 1586 1664 1769 1917 ps tDIP 962 1652 1734 1843 2007 ps tOP 944 1591 1669 1775 1923 ps tDIP 966 1657 1739 1849 2013 ps tOP 936 1585 1663 1768 1916 ps tDIP 958 1651 1733 1842 2006 ps tOP 919 1385 1453 1545 1680 ps tDIP 941 1451 1523 1619 1770 ps tOP 921 1394 1462 1555 1691 ps tDIP 943 1460 1532 1629 1781 ps tOP 921 1402 1471 1564 1700 ps tDIP 943 1468 1541 1638 1790 ps tOP 956 1607 1686 1793 1942 ps tDIP 978 1673 1756 1867 2032 ps tOP 961 1588 1666 1772 1920 ps tDIP 983 1654 1736 1846 2010 ps tOP 943 1590 1668 1774 1922 ps tDIP 965 1656 1738 1848 2012 ps tOP 943 1592 1670 1776 1924 ps tDIP 965 1658 1740 1850 2014 ps tOP 937 1590 1668 1774 1922 ps tDIP 959 1656 1738 1848 2012 ps Table 4-86. Stratix II GX I/O Output Delay for Column Pins (Part 5 of 7) I/O Standard 1.5-V HSTL Class II Drive Parameter Strength 16 mA 18 mA 20 mA (1) PCI - PCI-X - Differential SSTL2 Class I (2) 8 mA 12 mA Differential SSTL-2 Class II (2) 16 mA 20 mA 24 mA Differential SSTL-18 Class I (2) 4 mA 6 mA 8 mA 10 mA 12 mA Fast Corner -3 Speed Industrial/ Grade (3) Commercial -3 Speed Grade (4) -4 Speed Grade -5 Speed Grade Unit tOP 924 1431 1501 1596 1734 ps tDIP 946 1497 1571 1670 1824 ps tOP 927 1439 1510 1605 1744 ps tDIP 949 1505 1580 1679 1834 ps tOP 929 1450 1521 1618 1757 ps tDIP 951 1516 1591 1692 1847 ps tOP 1082 1956 2051 2176 2070 ps tDIP 1104 2022 2121 2250 2160 ps tOP 1082 1956 2051 2176 2070 ps tDIP 1104 2022 2121 2250 2160 ps tOP 957 1715 1799 1913 2041 ps tDIP 979 1781 1869 1987 2131 ps tOP 940 1672 1754 1865 1991 ps tDIP 962 1738 1824 1939 2081 ps tOP 918 1609 1688 1795 1918 ps tDIP 940 1675 1758 1869 2008 ps tOP 919 1598 1676 1783 1905 ps tDIP 941 1664 1746 1857 1995 ps tOP 915 1596 1674 1781 1903 ps tDIP 937 1662 1744 1855 1993 ps tOP 953 1690 1773 1886 2012 ps tDIP 975 1756 1843 1960 2102 ps tOP 958 1656 1737 1848 1973 ps tDIP 980 1722 1807 1922 2063 ps tOP 937 1640 1721 1830 1954 ps tDIP 959 1706 1791 1904 2044 ps tOP 942 1638 1718 1827 1952 ps tDIP 964 1704 1788 1901 2042 ps tOP 936 1626 1706 1814 1938 ps tDIP 958 1692 1776 1888 2028 ps Table 4-86. Stratix II GX I/O Output Delay for Column Pins (Part 6 of 7) I/O Standard Differential SSTL-18 Class II (2) Drive Parameter Strength 8 mA 16 mA 18 mA 20 mA 1.8-V differential HSTL Class I (2) 4 mA 6 mA 8 mA 10 mA 12 mA 1.8-V differential HSTL Class II (2) 16 mA 18 mA 20 mA Fast Corner -3 Speed Industrial/ Grade (3) Commercial -3 Speed Grade (4) -4 Speed Grade -5 Speed Grade Unit tOP 925 1597 1675 1782 1904 ps tDIP 947 1663 1745 1856 1994 ps tOP 937 1578 1655 1761 1882 ps tDIP 959 1644 1725 1835 1972 ps tOP 933 1585 1663 1768 1890 ps tDIP 955 1651 1733 1842 1980 ps tOP 933 1583 1661 1766 1888 ps tDIP 955 1649 1731 1840 1978 ps tOP 956 1608 1687 1794 1943 ps tDIP 978 1674 1757 1868 2033 ps tOP 962 1595 1673 1779 1928 ps tDIP 984 1661 1743 1853 2018 ps tOP 940 1586 1664 1769 1917 ps tDIP 962 1652 1734 1843 2007 ps tOP 944 1591 1669 1775 1923 ps tDIP 966 1657 1739 1849 2013 ps tOP 936 1585 1663 1768 1916 ps tDIP 958 1651 1733 1842 2006 ps tOP 919 1385 1453 1545 1680 ps tDIP 941 1451 1523 1619 1770 ps tOP 921 1394 1462 1555 1691 ps tDIP 943 1460 1532 1629 1781 ps tOP 921 1402 1471 1564 1700 ps tDIP 943 1468 1541 1638 1790 ps Table 4-86. Stratix II GX I/O Output Delay for Column Pins (Part 7 of 7) I/O Standard 1.5-V differential HSTL Class I (2) Drive Parameter Strength 4 mA 6 mA 8 mA 10 mA 12 mA 1.5-V differential HSTL Class II (2) 16 mA 18 mA 20 mA (1) (2) (3) (4) Fast Corner -3 Speed Industrial/ Grade (3) Commercial -3 Speed Grade (4) -4 Speed Grade -5 Speed Grade Unit tOP 956 1607 1686 1793 1942 ps tDIP 978 1673 1756 1867 2032 ps tOP 961 1588 1666 1772 1920 ps tDIP 983 1654 1736 1846 2010 ps tOP 943 1590 1668 1774 1922 ps tDIP 965 1656 1738 1848 2012 ps tOP 943 1592 1670 1776 1924 ps tDIP 965 1658 1740 1850 2014 ps tOP 937 1590 1668 1774 1922 ps tDIP 959 1656 1738 1848 2012 ps tOP 924 1431 1501 1596 1734 ps tDIP 946 1497 1571 1670 1824 ps tOP 927 1439 1510 1605 1744 ps tDIP 949 1505 1580 1679 1834 ps tOP 929 1450 1521 1618 1757 ps tDIP 951 1516 1591 1692 1847 ps This is the default setting in the Quartus II software. These I/O standards are only supported on DQS pins. This column refers to -3 speed grades for EP2SGX30, EP2SGX60, and EP2SGX90 devices. This column refers to -3 speed grades for EP2SGX130 devices. Table 4-87. Stratix II GX I/O Output Delay for Row Pins (Part 1 of 4) I/O Standard LVTTL Drive Strength Parameter Fast Corner Industrial/ Commercial -3 Speed Grade (3) -3 Speed Grade (4) -4 Speed Grade 4 mA tOP 1328 2655 2786 2962 3189 ps tDIP 1285 2600 2729 2902 3116 ps tOP 1200 2113 2217 2357 2549 ps tDIP 1157 2058 2160 2297 2476 ps tOP 1144 2081 2184 2321 2512 ps tDIP 1101 2026 2127 2261 2439 ps 8 mA 12 mA (1) -5 Speed Unit Grade Table 4-87. Stratix II GX I/O Output Delay for Row Pins (Part 2 of 4) I/O Standard LVCMOS Drive Strength Parameter Fast Corner Industrial/ Commercial -3 Speed Grade (3) -3 Speed Grade (4) -4 Speed Grade 4 mA tOP 1200 2113 2217 2357 2549 ps tDIP 1157 2058 2160 2297 2476 ps tOP 1094 1853 1944 2067 2243 ps tDIP 1051 1798 1887 2007 2170 ps 8 mA (1) 12 mA (1) 2.5 V 4 mA 8 mA 12 mA (1) 1.8 V 2 mA 4 mA 6 mA 8 mA (1) 1.5 V 2 mA 4 mA (1) SSTL-2 Class I 8 mA 12 mA (1) SSTL-2 Class II 16 mA (1) -5 Speed Unit Grade tOP 1061 1723 1808 1922 2089 ps tDIP 1018 1668 1751 1862 2016 ps tOP 1183 2091 2194 2332 2523 ps tDIP 1140 2036 2137 2272 2450 ps tOP 1080 1872 1964 2088 2265 ps tDIP 1037 1817 1907 2028 2192 ps tOP 1061 1775 1862 1980 2151 ps tDIP 1018 1720 1805 1920 2078 ps tOP 1253 2954 3100 3296 3542 ps tDIP 1210 2899 3043 3236 3469 ps tOP 1242 2294 2407 2559 2763 ps tDIP 1199 2239 2350 2499 2690 ps tOP 1131 2039 2140 2274 2462 ps tDIP 1088 1984 2083 2214 2389 ps tOP 1100 1942 2038 2166 2348 ps tDIP 1057 1887 1981 2106 2275 ps tOP 1213 2530 2655 2823 3041 ps tDIP 1170 2475 2598 2763 2968 ps tOP 1106 2020 2120 2253 2440 ps tDIP 1063 1965 2063 2193 2367 ps tOP 1050 1759 1846 1962 2104 ps tDIP 1007 1704 1789 1902 2031 ps tOP 1026 1694 1777 1889 2028 ps tDIP 983 1639 1720 1829 1955 ps tOP 992 1581 1659 1763 1897 ps tDIP 949 1526 1602 1703 1824 ps Table 4-87. Stratix II GX I/O Output Delay for Row Pins (Part 3 of 4) I/O Standard SSTL-18 Class I Drive Strength Parameter Fast Corner Industrial/ Commercial -3 Speed Grade (3) -3 Speed Grade (4) -4 Speed Grade 4 mA tOP 1038 1709 1793 1906 2046 ps tDIP 995 1654 1736 1846 1973 ps tOP 1042 1648 1729 1838 1975 ps tDIP 999 1593 1672 1778 1902 ps 6 mA 8 mA 10 mA (1) 1.8-V HSTL Class I 4 mA 6 mA 8 mA 10 mA 12 mA (1) 1.5-V HSTL Class I 4 mA 6 mA 8 mA (1) Differential SSTL-2 Class I 8 mA 12 mA Differential SSTL-2 Class II 16 mA -5 Speed Unit Grade tOP 1018 1633 1713 1821 1958 ps tDIP 975 1578 1656 1761 1885 ps tOP 1021 1615 1694 1801 1937 ps tDIP 978 1560 1637 1741 1864 ps tOP 1019 1610 1689 1795 1956 ps tDIP 976 1555 1632 1735 1883 ps tOP 1022 1580 1658 1762 1920 ps tDIP 979 1525 1601 1702 1847 ps tOP 1004 1576 1653 1757 1916 ps tDIP 961 1521 1596 1697 1843 ps tOP 1008 1567 1644 1747 1905 ps tDIP 965 1512 1587 1687 1832 ps tOP 999 1566 1643 1746 1904 ps tDIP 956 1511 1586 1686 1831 ps tOP 1018 1591 1669 1774 1933 ps tDIP 975 1536 1612 1714 1860 ps tOP 1021 1579 1657 1761 1919 ps tDIP 978 1524 1600 1701 1846 ps tOP 1006 1572 1649 1753 1911 ps tDIP 963 1517 1592 1693 1838 ps tOP 1050 1759 1846 1962 2104 ps tDIP 1007 1704 1789 1902 2031 ps tOP 1026 1694 1777 1889 2028 ps tDIP 983 1639 1720 1829 1955 ps tOP 992 1581 1659 1763 1897 ps tDIP 949 1526 1602 1703 1824 ps Table 4-87. Stratix II GX I/O Output Delay for Row Pins (Part 4 of 4) I/O Standard Differential SSTL-18 Class I Drive Strength Parameter Fast Corner Industrial/ Commercial -3 Speed Grade (3) -3 Speed Grade (4) -4 Speed Grade 4 mA tOP 1038 1709 1793 1906 2046 ps tDIP 995 1654 1736 1846 1973 ps tOP 1042 1648 1729 1838 1975 ps tDIP 999 1593 1672 1778 1902 ps 6 mA 8 mA 10 mA LVDS (2) HyperTransport (1) (2) (3) (4) - - -5 Speed Unit Grade tOP 1018 1633 1713 1821 1958 ps tDIP 975 1578 1656 1761 1885 ps tOP 1021 1615 1694 1801 1937 ps tDIP 978 1560 1637 1741 1864 ps tOP 1067 1723 1808 1922 2089 ps tDIP 1024 1668 1751 1862 2016 ps tOP 1053 1723 1808 1922 2089 ps tDIP 1010 1668 1751 1862 2016 ps This is the default setting in the Quartus II software. The parameters are only available on the left side of the device. This column refers to -3 speed grades for EP2SGX30, EP2SGX60, and EP2SGX90 devices. This column refers to -3 speed grades for EP2SGX130 devices. Maximum Input and Output Clock Toggle Rate Maximum clock toggle rate is defined as the maximum frequency achievable for a clock type signal at an I/O pin. The I/O pin can be a regular I/O pin or a dedicated clock I/O pin. The maximum clock toggle rate is different from the maximum data bit rate. If the maximum clock toggle rate on a regular I/O pin is 300 MHz, the maximum data bit rate for dual data rate (DDR) could be potentially as high as 600 Mbps on the same I/O pin. Tables 4-88 through 4-90 specify the maximum input clock toggle rates. Tables 4-91 through 4-96 specify the maximum output clock toggle rates at 0 pF load. Table 4-97 specifies the derating factors for the output clock toggle rate for a non 0 pF load. To calculate the output toggle rate for a non 0 pF load, use this formula: The toggle rate for a non 0 pF load = 1,000 / (1,000/ toggle rate at 0 pF load + derating factor x load value in pF /1,000) For example, the output toggle rate at 0 pF load for SSTL-18 Class II 20 mA I/O standard is 550 MHz on a -3 device clock output pin. The derating factor is 94 ps/pF. For a 10 pF load the toggle rate is calculated as: 1,000 / (1,000/550 + 94 x 10 /1,000) = 363 (MHz) Table 4-88 shows the maximum input clock toggle rates for Stratix II GX device column pins. Table 4-88. Stratix II GX Maximum Input Clock Rate for Column I/O Pins (Part 1 of 2) I/O Standard -3 Speed Grade -4 Speed Grade -5 Speed Grade Unit LVTTL 500 500 450 MHz 2.5 V 500 500 450 MHz 1.8 V 500 500 450 MHz 1.5 V 500 500 450 MHz LVCMOS 500 500 450 MHz SSTL-2 Class I 500 500 500 MHz SSTL-2 Class II 500 500 500 MHz SSTL-18 Class I 500 500 500 MHz SSTL-18 Class I I 500 500 500 MHz 1.5-V HSTL Class I 500 500 500 MHz 1.5-V HSTL Class I I 500 500 500 MHz 1.8-V HSTL Class I 500 500 500 MHz 1.8-V HSTL Class II 500 500 500 MHz PCI 500 500 450 MHz PCI-X 500 500 450 MHz Differential SSTL-2 Class I 500 500 500 MHz Differential SSTL-2 Class II 500 500 500 MHz Differential SSTL-18 Class I 500 500 500 MHz Table 4-88. Stratix II GX Maximum Input Clock Rate for Column I/O Pins (Part 2 of 2) I/O Standard -3 Speed Grade -4 Speed Grade -5 Speed Grade Unit Differential SSTL-18 Class I I 500 500 500 MHz 1.8-V differential HSTL Class I 500 500 500 MHz 1.8-V differential HSTL Class II 500 500 500 MHz 1.5-V differential HSTL Class I 500 500 500 MHz 1.5-V differential HSTL Class I I 500 500 500 MHz 1.2-V HSTL 280 250 250 MHz 1.2-V differential HSTL 280 250 250 MHz Table 4-89 shows the maximum input clock toggle rates for Stratix II GX device row pins. Table 4-89. Stratix II GX Maximum Input Clock Rate for Row I/O Pins (Part 1 of 2) I/O Standard -3 Speed Grade -4 Speed Grade -5 Speed Grade Unit LVTTL 500 500 450 MHz 2.5 V 500 500 450 MHz 1.8 V 500 500 450 MHz 1.5 V 500 500 450 MHz LVCMOS 500 500 450 MHz SSTL-2 Class I 500 500 500 MHz SSTL-2 Class II 500 500 500 MHz SSTL-18 Class I 500 500 500 MHz SSTL-18 Class II 500 500 500 MHz 1.5-V HSTL Class I 500 500 500 MHz 1.5-V HSTL Class II 500 500 500 MHz 1.8-V HSTL Class I 500 500 500 MHz 1.8-V HSTL Class II 500 500 500 MHz PCI 500 500 425 MHz PCI-X 500 500 425 MHz Differential SSTL-2 Class I 500 500 500 MHz Table 4-89. Stratix II GX Maximum Input Clock Rate for Row I/O Pins (Part 2 of 2) I/O Standard -3 Speed Grade -4 Speed Grade -5 Speed Grade Unit Differential SSTL-2 Class II 500 500 500 MHz Differential SSTL-18 Class I 500 500 500 MHz Differential SSTL-18 Class I I 500 500 500 MHz 1.8-V differential HSTL Class I 500 500 500 MHz 1.8-V differential HSTL Class I I 500 500 500 MHz 1.5-V differential HSTL Class I 500 500 500 MHz 1.5-V differential HSTL Class II 500 500 500 MHz LVDS (1) 520 520 420 MHz HyperTransport 520 520 420 MHz (1) The parameters are only available on the left side of the device. Table 4-90 shows the maximum input clock toggle rates for Stratix II GX device dedicated clock pins. Table 4-90. Stratix II GX Maximum Input Clock Rate for Dedicated Clock Pins (Part 1 of 2) I/O Standard -3 Speed Grade -4 Speed Grade -5 Speed Grade Unit LVTTL 500 500 400 MHz 2.5 V 500 500 400 MHz 1.8 V 500 500 400 MHz 1.5 V 500 500 400 MHz LVCMOS 500 500 400 MHz SSTL-2 Class I 500 500 500 MHz SSTL-2 Class II 500 500 500 MHz SSTL-18 Class I 500 500 500 MHz SSTL-18 Class II 500 500 500 MHz 1.5-V HSTL Class I 500 500 500 MHz 1.5-V HSTL Class II 500 500 500 MHz 1.8-V HSTL CLass I 500 500 500 MHz Table 4-90. Stratix II GX Maximum Input Clock Rate for Dedicated Clock Pins (Part 2 of 2) I/O Standard -3 Speed Grade -4 Speed Grade -5 Speed Grade Unit 1.8-V HSTL CLass I 500 500 500 MHz PCI 500 500 400 MHz PCI-X 500 500 400 MHz Differential SSTL-2 Class I 500 500 500 MHz Differential SSTL-2 Class II 500 500 500 MHz Differential SSTL-18 Class I 500 500 500 MHz Differential SSTL-18 Class II 500 500 500 MHz 1.8-V differential HSTL Class I 500 500 500 MHz 1.8-V differential HSTL Class II 500 500 500 MHz 1.5-V differential HSTL Class I 500 500 500 MHz 1.5-V differential HSTL Class I I 500 500 500 MHz HyperTransport (1) LVPECL (1), (2) LVDS (1) (1) (2) 717 717 640 MHz 450 450 400 MHz 717 717 640 MHz 450 450 400 MHz 717 717 640 MHz 450 450 400 MHz The first set of numbers refers to the HIO dedicated clock pins. The second set of numbers refers to the VIO dedicated clock pins. LVPECL is only supported on column clock pins. Table 4-91 shows the maximum output clock toggle rates for Stratix II GX device column pins. Table 4-91. Stratix II GX Maximum Output Clock Rate for Column Pins (Part 1 of 3) I/O Standard LVTTL LVCMOS 2.5 V 1.8 V 1.5 V SSTL-2 Class I SSTL-2 Class II Drive Strength -3 Speed Grade -4 Speed Grade -5 Speed Grade Unit 4 mA 270 225 210 MHz 8 mA 435 355 325 MHz 12 mA 580 475 420 MHz 16 mA 720 594 520 MHz 20 mA 875 700 610 MHz 24 mA (1) 1030 794 670 MHz 4 mA 290 250 230 MHz 8 mA 565 480 440 MHz 12 mA 790 710 670 MHz 16 mA 1020 925 875 MHz 20 mA 1066 985 935 MHz 24 mA (1) 1100 1040 1000 MHz 4 mA 230 194 180 MHz 8 mA 430 380 380 MHz 12 mA 630 575 550 MHz 16 mA (1) 930 845 820 MHz 2 mA 120 109 104 MHz 4 mA 285 250 230 MHz 6 mA 450 390 360 MHz 8 mA 660 570 520 MHz 10 mA 905 805 755 MHz 12 mA (1) 1131 1040 990 MHz 2 mA 244 200 180 MHz 4 mA 470 370 325 MHz 6 mA 550 430 375 MHz 8 mA (1) 625 495 420 MHz 8 mA 400 300 300 MHz 12 mA (1) 400 400 350 MHz 16 mA 350 350 300 MHz 20 mA 400 350 350 MHz 24 mA (1) 400 400 350 MHz Table 4-91. Stratix II GX Maximum Output Clock Rate for Column Pins (Part 2 of 3) I/O Standard Drive Strength -3 Speed Grade -4 Speed Grade -5 Speed Grade Unit SSTL-18 Class I 4 mA 200 150 150 MHz 6 mA 350 250 200 MHz 8 mA 450 300 300 MHz 10 mA 500 400 400 MHz 12 mA (1) 700 550 400 MHz SSTL-18 Class II 1.8-V HSTL Class I 1.8-V HSTL Class II 1.5-V HSTL Class I 1.5-V HSTL Class II 8 mA 200 200 150 MHz 16 mA 400 350 350 MHz 18 mA 450 400 400 MHz 20 mA (1) 550 500 450 MHz 4 mA 300 300 300 MHz 6 mA 500 450 450 MHz 8 mA 650 600 600 MHz 10 mA 700 650 600 MHz 12 mA (1) 700 700 650 MHz 16 mA 500 500 450 MHz 18 mA 550 500 500 MHz 20 mA (1) 650 550 550 MHz 4 mA 350 300 300 MHz 6 mA 500 500 450 MHz 8 mA 700 650 600 MHz 10 mA 700 700 650 MHz 12 mA (1) 700 700 700 MHz 16 mA 600 600 550 MHz 18 mA 650 600 600 MHz 20 mA (1) 700 650 600 MHz PCI - 1000 790 670 MHz PCI-X - 1000 790 670 MHz Differential SSTL-2 Class I Differential SSTL-2 Class II 8 mA 400 300 300 MHz 12 mA 400 400 350 MHz 16 mA 350 350 300 MHz 20 mA 400 350 350 MHz 24 mA 400 400 350 MHz Table 4-91. Stratix II GX Maximum Output Clock Rate for Column Pins (Part 3 of 3) I/O Standard Drive Strength -3 Speed Grade -4 Speed Grade -5 Speed Grade Unit Differential SSTL-18 Class I 4 mA 200 150 150 MHz 6 mA 350 250 200 MHz 8 mA 450 300 300 MHz 10 mA 500 400 400 MHz 12 mA 700 550 400 MHz Differential SSTL-18 Class II 1.8-V HSTL differential Class I 1.8-V HSTL differential Class II 1.5-V HSTL differential Class I 1.5-V HSTL differential Class II (1) 8 mA 200 200 150 MHz 16 mA 400 350 350 MHz 18 mA 450 400 400 MHz 20 mA 550 500 450 MHz 4 mA 300 300 300 MHz 6 mA 500 450 450 MHz 8 mA 650 600 600 MHz 10 mA 700 650 600 MHz 12 mA 700 700 650 MHz 16 mA 500 500 450 MHz 18 mA 550 500 500 MHz 20 mA 650 550 550 MHz 4 mA 350 300 300 MHz 6 mA 500 500 450 MHz 8 mA 700 650 600 MHz 10 mA 700 700 650 MHz 12 mA 700 700 700 MHz 16 mA 600 600 550 MHz 18 mA 650 600 600 MHz 20 mA 700 650 600 MHz This is the default setting in the Quartus II software. Table 4-92 shows the maximum output clock toggle rates for Stratix II GX device row pins. Table 4-92. Stratix II GX Maximum Output Clock Rate for Row Pins (Part 1 of 2) I/O Standard LVTTL LVCMOS 2.5 V 1.8 V 1.5 V SSTL-2 Class I SSTL-2 Class II SSTL-18 Class I 1.8-V HSTL Class I 1.5-V HSTL Class I Drive Strength -3 Speed Grade -4 Speed Grade -5 Speed Grade Unit 4 mA 270 225 210 MHz 8 mA 435 355 325 MHz 12 mA (1) 580 475 420 MHz 4 mA 290 250 230 MHz 8 mA 565 480 440 MHz 12 mA (1) 350 350 297 MHz 4 mA 230 194 180 MHz 8 mA 430 380 380 MHz 12 mA (1) 630 575 550 MHz 2 mA 120 109 104 MHz 4 mA 285 250 230 MHz 6 mA 450 390 360 MHz 8 mA (1) 660 570 520 MHz 2 mA 244 200 180 MHz 4 mA (1) 470 370 325 MHz 8 mA 400 300 300 MHz 12 mA (1) 400 400 350 MHz 16 mA 350 350 300 MHz 20 mA (1) 350 350 297 MHz 4 mA 200 150 150 MHz 6 mA 350 250 200 MHz 8 mA 450 300 300 MHz 10 mA 500 400 400 MHz 12 mA (1) 350 350 297 MHz 4 mA 300 300 300 MHz 6 mA 500 450 450 MHz 8 mA 650 600 600 MHz 10 mA 700 650 600 MHz 12 mA (1) 700 700 650 MHz 4 mA 350 300 300 MHz 6 mA 500 500 450 MHz 8 mA (1) 700 650 600 MHz Table 4-92. Stratix II GX Maximum Output Clock Rate for Row Pins (Part 2 of 2) I/O Standard Differential SSTL-2 Class I Drive Strength -3 Speed Grade -4 Speed Grade -5 Speed Grade Unit 8 mA 400 300 300 MHz 12 mA 400 400 350 MHz Differential SSTL-2 Class II 16 mA (1) 350 350 300 MHz Differential SSTL-18 Class I 4 mA 200 150 150 MHz 6 mA 350 250 200 MHz 8 mA 450 300 300 MHz 10 mA (1) 500 400 400 MHz LVDS - 717 717 640 MHz HyperTransport - 717 717 640 MHz (1) This is the default setting in Quartus II software. Table 4-93 shows the maximum output clock toggle rate for Stratix II GX device dedicated clock pins. Table 4-93. Stratix II GX Maximum Output Clock Rate for Dedicated Clock Pins (Part 1 of 4) I/O Standard LVTTL LVCMOS Drive Strength -3 Speed Grade -4 Speed Grade -5 Speed Grade 4 mA 270 225 210 MHz Unit 8 mA 435 355 325 MHz 12 mA 580 475 420 MHz 16 mA 720 594 520 MHz 20 mA 875 700 610 MHz 24 mA (1) 1030 794 670 MHz 4 mA 290 250 230 MHz 8 mA 565 480 440 MHz 12 mA 790 710 670 MHz 16 mA 1020 925 875 MHz 20 mA 1066 985 935 MHz 24 mA (1) 1100 1040 1000 MHz Table 4-93. Stratix II GX Maximum Output Clock Rate for Dedicated Clock Pins (Part 2 of 4) I/O Standard 2.5 V 1.8 V 1.5 V SSTL-2 Class I SSTL-2 Class II SSTL-18 Class I SSTL-18 Class II 1.8-V HSTL Class I Drive Strength -3 Speed Grade -4 Speed Grade -5 Speed Grade Unit 4 mA 230 194 180 MHz 8 mA 430 380 380 MHz 12 mA 630 575 550 MHz 16 mA (1) 930 845 820 MHz 2 mA 120 109 104 MHz 4 mA 285 250 230 MHz 6 mA 450 390 360 MHz 8 mA 660 570 520 MHz 10 mA 905 805 755 MHz 12 mA (1) 1131 1040 990 MHz 2 mA 244 200 180 MHz 4 mA 470 370 325 MHz 6 mA 550 430 375 MHz 8 mA (1) 625 495 420 MHz 8 mA 400 300 300 MHz 12 mA (1) 400 400 350 MHz 16 mA 350 350 300 MHz 20 mA 400 350 350 MHz 24 mA (1) 400 400 350 MHz 4 mA 200 150 150 MHz 6 mA 350 250 200 MHz 8 mA 450 300 300 MHz 10 mA 500 400 400 MHz 12 mA (1) 650 550 400 MHz 8 mA 200 200 150 MHz 16 mA 400 350 350 MHz 18 mA 450 400 400 MHz 20 mA (1) 550 500 450 MHz 4 mA 300 300 300 MHz 6 mA 500 450 450 MHz 8 mA 650 600 600 MHz 10 mA 700 650 600 MHz 12 mA (1) 700 700 650 MHz Table 4-93. Stratix II GX Maximum Output Clock Rate for Dedicated Clock Pins (Part 3 of 4) I/O Standard 1.8-V HSTL Class II 1.5-V HSTL Class I 1.5-V HSTL Class II Drive Strength -3 Speed Grade -4 Speed Grade -5 Speed Grade Unit 16 mA 500 500 450 MHz 18 mA 550 500 500 MHz 20 mA (1) 550 550 550 MHz 4 mA 350 300 300 MHz 6 mA 500 500 450 MHz 8 mA 700 650 600 MHz 10 mA 700 700 650 MHz 12 mA (1) 700 700 700 MHz 16 mA 600 600 550 MHz 18 mA 650 600 600 MHz 20 mA (1) 700 650 600 MHz PCI - 1000 790 670 MHz PCI-X - 1000 790 670 MHz Differential SSTL-2 Class I Differential SSTL-2 Class II Differential SSTL-18 Class I Differential SSTL-18 Class II 1.8-V differential Class I 8 mA 400 300 300 MHz 12 mA 400 400 350 MHz 16 mA 350 350 300 MHz 20 mA 400 350 350 MHz 24 mA 400 400 350 MHz 4 mA 200 150 150 MHz 6 mA 350 250 200 MHz 8 mA 450 300 300 MHz 10 mA 500 400 400 MHz 12 mA 650 550 400 MHz 8 mA 200 200 150 MHz 16 mA 400 350 350 MHz 18 mA 450 400 400 MHz 20 mA 550 500 450 MHz 4 mA 300 300 300 MHz 6 mA 500 450 450 MHz 8 mA 650 600 600 MHz 10 mA 700 650 600 MHz 12 mA 700 700 650 MHz Table 4-93. Stratix II GX Maximum Output Clock Rate for Dedicated Clock Pins (Part 4 of 4) I/O Standard 1.8-V differential Class II 1.5-V differential Class I 1.5-V differential Class II Drive Strength -3 Speed Grade -4 Speed Grade -5 Speed Grade Unit 16 mA 500 500 450 MHz 18 mA 550 500 500 MHz 20 mA 550 550 550 MHz 4 mA 350 300 300 MHz 6 mA 500 500 450 MHz 8 mA 700 650 600 MHz 10 mA 700 700 650 MHz 12 mA 700 700 700 MHz 16 mA 600 600 550 MHz 18 mA 650 600 600 MHz 20 mA 700 650 600 MHz HyperTransport - 300 250 125 MHz LVPECL - 450 400 300 MHz (1) This is the default setting in Quartus II software. Table 4-94 shows the maximum output clock toggle rate for Stratix II GX device series-terminated column pins. Table 4-94. Stratix II GX Maximum Output Clock Rate for Column Pins (Series Termination) (Part 1 of 2) I/O Standard Drive Strength -3 Speed Grade -4 Speed Grade -5 Speed Grade Unit LVTTL OCT_25_OHMS 400 400 350 MHz OCT_50_OHMS 400 400 350 MHz LVCMOS OCT_25_OHMS 350 350 300 MHz OCT_50_OHMS 350 350 300 MHz OCT_25_OHMS 350 350 300 MHz OCT_50_OHMS 350 350 300 MHz OCT_25_OHMS 700 550 450 MHz 2.5 V 1.8 V OCT_50_OHMS 700 550 450 MHz 1.5 V OCT_50_OHMS 550 450 400 MHz SSTL-2 Class I OCT_50_OHMS 600 500 500 MHz SSTL-2 Class II OCT_25_OHMS 600 550 500 MHz Table 4-94. Stratix II GX Maximum Output Clock Rate for Column Pins (Series Termination) (Part 2 of 2) I/O Standard Drive Strength SSTL-18 Class I OCT_50_OHMS -3 Speed Grade -4 Speed Grade -5 Speed Grade Unit 560 400 350 MHz SSTL-18 Class II OCT_25_OHMS 550 500 450 MHz 1.5-V HSTL Class I OCT_50_OHMS 600 550 500 MHz 1.8-V HSTL Class I OCT_50_OHMS 650 600 600 MHz 1.8-V HSTL Class II OCT_25_OHMS 500 500 450 MHz Differential SSTL-2 Class I OCT_50_OHMS 600 500 500 MHz Differential SSTL-2 Class II OCT_25_OHMS 600 550 500 MHz Differential OCT_50_OHMS SSTL-18 Class I 560 400 350 MHz Differential OCT_25_OHMS SSTL-18 Class II 550 500 450 MHz 1.8-V differential HSTL Class I OCT_50_OHMS 650 600 600 MHz 1.8-V differential HSTL Class II OCT_25_OHMS 500 500 450 MHz 1.5-V differential HSTL Class I OCT_50_OHMS 600 550 500 MHz Table 4-95 shows the maximum output clock toggle rate for Stratix II GX device series-terminated row pins. Table 4-95. Stratix II GX Maximum Output Clock Rate for Row Pins (Series Termination) (Part 1 of 2) I/O Standard LVTTL LVCMOS 2.5 V Drive Strength -3 Speed Grade -4 Speed Grade -5 Speed Grade Unit OCT_25_OHMS 400 400 350 MHz OCT_50_OHMS 400 400 350 MHz OCT_25_OHMS 350 350 300 MHz OCT_50_OHMS 350 350 300 MHz OCT_25_OHMS 350 350 300 MHz OCT_50_OHMS 350 350 300 MHz 1.8 V OCT_50_OHMS 700 550 450 MHz 1.5 V OCT_50_OHMS 550 450 400 MHz Table 4-95. Stratix II GX Maximum Output Clock Rate for Row Pins (Series Termination) (Part 2 of 2) I/O Standard Drive Strength -3 Speed Grade -4 Speed Grade -5 Speed Grade Unit SSTL-2 Class I OCT_50_OHMS 600 500 500 MHz SSTL-2 Class II OCT_25_OHMS 600 550 500 MHz SSTL-18 Class I OCT_50_OHMS 590 400 350 MHz 1.5-V HSTL Class I OCT_50_OHMS 600 550 500 MHz 1.8-V HSTL Class I OCT_50_OHMS 650 600 600 MHz Differential SSTL-2 Class I OCT_50_OHMS 600 500 500 MHz Differential SSTL-2 Class II OCT_25_OHMS 600 550 500 MHz Differential OCT_50_OHMS SSTL-18 Class I 590 400 350 MHz Differential OCT_50_OHMS HSTL-18 Class I 650 600 600 MHz Differential OCT_50_OHMS HSTL-15 Class I 600 550 500 Table 4-96 shows the maximum output clock toggle rate for Stratix II GX device series-terminated dedicated clock pins. Table 4-96. Stratix II GX Maximum Output Clock Rate for Dedicated Clock Pins (Series Termination) (Part 1 of 2) I/O Standard Drive Strength -3 Speed Grade -4 Speed Grade -5 Speed Grade Unit LVTTL OCT_25_OHMS 400 400 350 MHz OCT_50_OHMS 400 400 350 MHz LVCMOS OCT_25_OHMS 350 350 300 MHz OCT_50_OHMS 350 350 300 MHz OCT_25_OHMS 350 350 300 MHz OCT_50_OHMS 350 350 300 MHz OCT_25_OHMS 700 550 450 MHz 2.5 V 1.8 V OCT_50_OHMS 700 550 450 MHz 1.5 V OCT_50_OHMS 550 450 400 MHz SSTL-2 Class I OCT_50_OHMS 600 500 500 MHz SSTL-2 Class II OCT_25_OHMS 600 550 500 MHz SSTL-18 Class I OCT_50_OHMS 450 400 350 MHz Table 4-96. Stratix II GX Maximum Output Clock Rate for Dedicated Clock Pins (Series Termination) (Part 2 of 2) I/O Standard Drive Strength -3 Speed Grade -4 Speed Grade -5 Speed Grade Unit SSTL-18 Class II OCT_25_OHMS 550 500 450 MHz 1.5-V HSTL Class I OCT_50_OHMS 600 550 500 MHz 1.8-V HSTL Class I OCT_50_OHMS 650 600 600 MHz 1.8-V HSTL Class II OCT_25_OHMS 500 500 450 MHz DIfferential SSTL-2 Class I OCT_50_OHMS 600 500 500 MHz DIfferential SSTL-2 Class II OCT_25_OHMS 600 550 500 MHz DIfferential OCT_50_OHMS SSTL-18 Class I 560 400 350 MHz DIfferential OCT_25_OHMS SSTL-18 Class II 550 500 450 MHz 1.8-V differential HSTL Class I OCT_50_OHMS 650 600 600 MHz 1.8-V differential HSTL Class II OCT_25_OHMS 500 500 450 MHz 1.5-V differential HSTL Class I OCT_50_OHMS 600 550 500 MHz Table 4-97 specifies the derating factors for the output clock toggle rate for a non 0 pF load. Table 4-97. Maximum Output Clock Toggle Rate Derating Factors (Part 1 of 5) Maximum Output Clock Toggle Rate Derating Factors (ps/pF) I/O Standard Drive Strength Column I/O Pins -3 3.3-V LVTTL Dedicated Clock Outputs Row I/O Pins -4 -5 -3 -4 -5 -3 -4 -5 4 mA 478 510 510 478 510 510 466 510 510 8 mA 260 333 333 260 333 333 291 333 333 12 mA 213 247 247 213 247 247 211 247 247 16 mA 136 197 197 - - - 166 197 197 20 mA 138 187 187 - - - 154 187 187 24 mA 134 177 177 - - - 143 177 177 Table 4-97. Maximum Output Clock Toggle Rate Derating Factors (Part 2 of 5) Maximum Output Clock Toggle Rate Derating Factors (ps/pF) I/O Standard 3.3-V LVCMOS 2.5-V LVTTL/ LVCMOS 1.8-V LVTTL/ LVCMOS 1.5-V LVTTL/ LVCMOS SSTL-2 Class I SSTL-2 Class II SSTL-18 Class I Drive Strength 4 mA Column I/O Pins Dedicated Clock Outputs Row I/O Pins -3 -4 -5 -3 -4 -5 -3 -4 -5 377 391 391 377 391 391 377 391 391 8 mA 206 212 212 206 212 212 178 212 212 12 mA 141 145 145 - - - 115 145 145 16 mA 108 111 111 - - - 86 111 111 20 mA 83 88 88 - - - 79 88 88 24 mA 65 72 72 - - - 74 72 72 4 mA 387 427 427 387 427 427 391 427 427 8 mA 163 224 224 163 224 224 170 224 224 12 mA 142 203 203 142 203 203 152 203 203 16 mA 120 182 182 - - - 134 182 182 2 mA 951 1,421 1,421 951 1,421 1,421 904 1,421 1,421 4 mA 405 516 516 405 516 516 393 516 516 6 mA 261 325 325 261 325 325 253 325 325 8 mA 223 274 274 223 274 274 224 274 274 10 mA 194 236 236 - - - 199 236 236 12 mA 174 209 209 - - - 180 209 209 2 mA 652 963 963 652 963 963 618 963 963 4 mA 333 347 347 333 347 347 270 347 347 6 mA 182 247 247 - - - 198 247 247 8 mA 135 194 194 - - - 155 194 194 8 mA 364 680 680 364 680 680 350 680 680 12 mA 163 207 207 163 207 207 188 207 207 16 mA 118 147 147 118 147 147 94 147 147 20 mA 99 122 122 - - - 87 122 122 24 mA 91 116 116 - - - 85 116 116 4 mA 458 570 570 458 570 570 505 570 570 6 mA 305 380 380 305 380 380 336 380 380 8 mA 225 282 282 225 282 282 248 282 282 10 mA 167 220 220 167 220 220 190 220 220 12 mA 129 175 175 - - - 148 175 175 Table 4-97. Maximum Output Clock Toggle Rate Derating Factors (Part 3 of 5) Maximum Output Clock Toggle Rate Derating Factors (ps/pF) I/O Standard SSTL-18 Class II 2.5-V SSTL-2 Class I 2.5-V SSTL-2 Class II 1.8-V SSTL-18 Class I 1.8-V SSTL-18 Class II 1.8-V HSTL Class I 1.8-V HSTL Class II 1.5-V HSTL Class I Drive Strength Column I/O Pins Dedicated Clock Outputs Row I/O Pins -3 -4 -5 -3 -4 -5 -3 -4 -5 8 mA 173 206 206 - - - 155 206 206 16 mA 150 160 160 - - - 140 160 160 18 mA 120 130 130 - - - 110 130 130 20 mA 109 127 127 - - - 94 127 127 8 mA 364 680 680 364 680 680 350 680 680 12 mA 163 207 207 163 207 207 188 207 207 16 mA 118 147 147 118 147 147 94 147 147 20 mA 99 122 122 - - - 87 122 122 24 mA 91 116 116 - - - 85 116 116 4 mA 458 570 570 458 570 570 505 570 570 6 mA 305 380 380 305 380 380 336 380 380 8 mA 225 282 282 225 282 282 248 282 282 10 mA 167 220 220 167 220 220 190 220 220 12 mA 129 175 175 - - - 148 175 175 8 mA 173 206 206 - - - 155 206 206 16 mA 150 160 160 - - - 140 160 160 18 mA 120 130 130 - - - 110 130 130 20 mA 109 127 127 - - - 94 127 127 4 mA 245 282 282 245 282 282 229 282 282 6 mA 164 188 188 164 188 188 153 188 188 8 mA 123 140 140 123 140 140 114 140 140 10 mA 110 124 124 110 124 124 108 124 124 12 mA 97 110 110 97 110 110 104 110 110 16 mA 101 104 104 - - - 99 104 104 18 mA 98 102 102 - - - 93 102 102 20 mA 93 99 99 - - - 88 99 99 4 mA 168 196 196 168 196 196 188 196 196 6 mA 112 131 131 112 131 131 125 131 131 8 mA 84 99 99 84 99 99 95 99 99 10 mA 87 98 98 - - - 90 98 98 12 mA 86 98 98 - - - 87 98 98 Table 4-97. Maximum Output Clock Toggle Rate Derating Factors (Part 4 of 5) Maximum Output Clock Toggle Rate Derating Factors (ps/pF) I/O Standard 1.5-V HSTL Class II 2.5-V differential SSTL Class II (3) 1.8-V differential SSTL Class I (3) 1.8-V differential SSTL Class II (3) 1.8-V differential HSTL Class I (3) 1.8-V differential HSTL Class II (3) 1.5-V differential HSTL Class I (3) Drive Strength Column I/O Pins Dedicated Clock Outputs Row I/O Pins -3 -4 -5 -3 -4 -5 -3 -4 -5 16 mA 95 101 101 - - - 96 101 101 18 mA 95 100 100 - - - 101 100 100 20 mA 94 101 101 - - - 104 101 101 8 mA 364 680 680 - - - 350 680 680 12 mA 163 207 207 - - - 188 207 207 16 mA 118 147 147 - - - 94 147 147 20 mA 99 122 122 - - - 87 122 122 24 mA 91 116 116 - - - 85 116 116 4 mA 458 570 570 - - - 505 570 570 6 mA 305 380 380 - - - 336 380 380 8 mA 225 282 282 - - - 248 282 282 10 mA 167 220 220 - - - 190 220 220 12 mA 129 175 175 - - - 148 175 175 8 mA 173 206 206 - - - 155 206 206 16 mA 150 160 160 - - - 140 160 160 18 mA 120 130 130 - - - 110 130 130 20 mA 109 127 127 - - - 94 127 127 4 mA 245 282 282 - - - 229 282 282 6 mA 164 188 188 - - - 153 188 188 8 mA 123 140 140 - - - 114 140 140 10 mA 110 124 124 - - - 108 124 124 12 mA 97 110 110 - - - 104 110 110 16 mA 101 104 104 - - - 99 104 104 18 mA 98 102 102 - - - 93 102 102 20 mA 93 99 99 - - - 88 99 99 4 mA 168 196 196 - - - 188 196 196 6 mA 112 131 131 - - - 125 131 131 8 mA 84 99 99 - - - 95 99 99 10 mA 87 98 98 - - - 90 98 98 12 mA 86 98 98 - - - 87 98 98 Table 4-97. Maximum Output Clock Toggle Rate Derating Factors (Part 5 of 5) Maximum Output Clock Toggle Rate Derating Factors (ps/pF) I/O Standard 1.5-V differential HSTL Class II (3) Drive Strength Column I/O Pins Dedicated Clock Outputs Row I/O Pins -3 -4 -5 -3 -4 -5 -3 -4 -5 16 mA 95 101 101 - - - 96 101 101 18 mA 95 100 100 - - - 101 100 100 20 mA 94 101 101 - - - 104 101 101 3.3-V PCI 134 177 177 - - - 143 177 177 3.3-V PCI-X 134 177 177 - - - 143 177 177 - - - 155 (1) 155 (1) 155 (1) 134 134 134 LVDS LVPECL (4) 3.3-V LVTTL OCT 50 - - - - - - 134 134 134 133 152 152 133 152 152 147 152 152 2.5-V LVTTL OCT 50 207 274 274 207 274 274 235 274 274 1.8-V LVTTL OCT 50 151 165 165 151 165 165 153 165 165 3.3-V LVCMOS OCT 50 300 316 316 300 316 316 263 316 316 1.5-V LVCMOS OCT 50 157 171 171 157 171 171 174 171 171 SSTL-2 Class I OCT 50 121 134 134 121 134 134 77 134 134 SSTL-2 Class II OCT 25 56 101 101 56 101 101 58 101 101 SSTL-18 Class I OCT 50 100 123 123 100 123 123 106 123 123 SSTL-18 Class II OCT 25 61 110 110 - - - 59 110 110 1.2-V HSTL (2) OCT 50 95 - - - - - 95 - - (1) (2) (3) (4) For LVDS output on row I/O pins the toggle rate derating factors apply to loads larger than 5 pF. In the derating calculation, subtract 5 pF from the intended load value in pF for the correct result. For a load less than or equal to 5 pF, refer to Tables 4-91 through 4-95 for output toggle rates. 1.2-V HSTL is only supported on column I/O pins on -3 devices. Differential HSTL and SSTL is only supported on column clock and DQS outputs. LVPECL is only supported on column clock outputs. Duty Cycle Distortion Duty cycle distortion (DCD) describes how much the falling edge of a clock is off from its ideal position. The ideal position is when both the clock high time (CLKH) and the clock low time (CLKL) equal half of the clock period (T), as shown in Figure 4-11. DCD is the deviation of the non-ideal falling edge from the ideal falling edge, such as D1 for the falling edge A and D2 for the falling edge B (see Figure 4-11). The maximum DCD for a clock is the larger value of D1 and D2. Figure 4-11. Duty Cycle Distortion Ideal Falling Edge CLKH = T/2 CLKL = T/2 D1 Falling Edge A D2 Falling Edge B Clock Period (T) DCD expressed in absolution derivation, for example, D1 or D2 in Figure 4-11, is clock-period independent. DCD can also be expressed as a percentage, and the percentage number is clock-period dependent. DCD as a percentage is defined as: (T/2 - D1) / T (the low percentage boundary) (T/2 + D2) / T (the high percentage boundary) DCD Measurement Techniques DCD is measured at an FPGA output pin driven by registers inside the corresponding I/O element (IOE) block. When the output is a single data rate signal (non-DDIO), only one edge of the register input clock (positive or negative) triggers output transitions (Figure 4-12). Therefore, any DCD present on the input clock signal or caused by the clock input buffer or different input I/O standard does not transfer to the output signal. Figure 4-12. DCD Measurement Technique for Non-DDIO (Single-Data Rate) Outputs However, when the output is a double data rate input/output (DDIO) signal, both edges of the input clock signal (positive and negative) trigger output transitions (Figure 4-13). Therefore, any distortion on the input clock and the input clock buffer affect the output DCD. Figure 4-13. DCD Measurement Technique for DDIO (Double-Data Rate) Outputs When an FPGA PLL generates the internal clock, the PLL output clocks the IOE block. As the PLL only monitors the positive edge of the reference clock input and internally re-creates the output clock signal, any DCD present on the reference clock is filtered out. Therefore, the DCD for a DDIO output with PLL in the clock path is better than the DCD for a DDIO output without PLL in the clock path. Tables 4-98 through 4-105 show the maximum DCD in absolution derivation for different I/O standards on Stratix II GX devices. Examples are also provided that show how to calculate DCD as a percentage. Table 4-98. Maximum DCD for Non-DDIO Output on Row I/O Pins Maximum DCD (ps) for Non-DDIO Output Row I/O Output Standard -3 Devices -4 and -5 Devices Unit 3.3-V LVTTTL 245 275 ps 3.3-V LVCMOS 125 155 ps 2.5 V 105 135 ps 1.8 V 180 180 ps 1.5-V LVCMOS 165 195 ps SSTL-2 Class I 115 145 ps SSTL-2 Class II 95 125 ps SSTL-18 Class I 55 85 ps 1.8-V HSTL Class I 80 100 ps 1.5-V HSTL Class I 85 115 ps LVDS 55 80 ps Here is an example for calculating the DCD as a percentage for a non-DDIO output on a row I/O on a -3 device: If the non-DDIO output I/O standard is SSTL-2 Class II, the maximum DCD is 95 ps (see Table 4-99). If the clock frequency is 267 MHz, the clock period T is: T = 1/ f = 1 / 267 MHz = 3.745 ns = 3,745 ps To calculate the DCD as a percentage: (T/2 - DCD) / T = (3,745 ps/2 - 95 ps) / 3,745 ps = 47.5% (for low boundary) (T/2 + DCD) / T = (3,745 ps/2 + 95 ps) / 3,745 ps = 52.5% (for high boundary) Therefore, the DCD percentage for the output clock at 267 MHz is from 47.5% to 52.5%. Table 4-99. Maximum DCD for Non-DDIO Output on Column I/O Pins Column I/O Output Standard I/O Standard Maximum DCD (ps) for Non-DDIO Output -3 Devices Unit -4 and -5 Devices 3.3-V LVTTL 190 220 ps 3.3-V LVCMOS 140 175 ps 2.5 V 125 155 ps 1.8 V 80 110 ps 1.5-V LVCMOS 185 215 ps SSTL-2 Class I 105 135 ps SSTL-2 Class II 100 130 ps SSTL-18 Class I 90 115 ps SSTL-18 Class II 70 100 ps 1.8-V HSTL Class I 80 110 ps 1.8-V HSTL Class II 80 110 ps 1.5-V HSTL Class I 85 115 ps 1.5-V HSTL Class II 50 80 ps 1.2-V HSTL-12 170 200 ps LVPECL 55 80 ps Table 4-100. Maximum DCD for DDIO Output on Row I/O Pins Without PLL in the Clock Path for -3 Devices Note (1) Input I/O Standard (No PLL in Clock Path) Maximum DCD (ps) for Row DDIO Output I/O Standard TTL/CMOS SSTL-2 SSTL/HSTL LVDS 2.5 V 1.8 and 1.5 V 3.3 V Unit 3.3 and 2.5 V 1.8 and 1.5 V 3.3-V LVTTL 260 380 145 145 110 ps 3.3-V LVCMOS 210 330 100 100 65 ps 2.5 V 195 315 85 85 75 ps 1.8 V 150 265 85 85 120 ps 1.5-V LVCMOS 255 370 140 140 105 ps SSTL-2 Class I 175 295 65 65 70 ps SSTL-2 Class II 170 290 60 60 75 ps SSTL-18 Class I 155 275 55 50 90 ps 1.8-V HSTL Class I 150 270 60 60 95 ps 1.5-V HSTL Class I 150 270 55 55 90 ps LVDS 180 180 180 180 180 ps (1) The information in Table 4-100 assumes the input clock has zero DCD. Here is an example for calculating the DCD in percentage for a DDIO output on a row I/O on a -3 device: If the input I/O standard is 2.5-V SSTL-2 and the DDIO output I/O standard is SSTL-2 Class= II, the maximum DCD is 60 ps (see Table 4-100). If the clock frequency is 267 MHz, the clock period T is: T = 1/ f = 1 / 267 MHz = 3.745 ns = 3,745 ps Calculate the DCD as a percentage: (T/2 - DCD) / T = (3,745 ps/2 - 60 ps) / 3745 ps = 48.4% (for low boundary) (T/2 + DCD) / T = (3,745 ps/2 + 60 ps) / 3745 ps = 51.6% (for high boundary) Therefore, the DCD percentage for the output clock is from 48.4% to 51.6%. Table 4-101. Maximum DCD for DDIO Output on Row I/O Pins Without PLL in the Clock Path for -4 and -5 Devices Note (1) Maximum DCD (ps) for Row DDIO Output I/O Standard 3.3-V LVTTL Input I/O Standard (No PLL in the Clock Path) TTL/CMOS SSTL-2 SSTL/HSTL LVDS Unit 3.3/2.5V 1.8/1.5V 2.5V 1.8/1.5V 3.3V 440 495 170 160 105 ps 3.3-V LVCMOS 390 450 120 110 75 ps 2.5 V 375 430 105 95 90 ps 1.8 V 325 385 90 100 135 ps 1.5-V LVCMOS 430 490 160 155 100 ps SSTL-2 Class I 355 410 85 75 85 ps SSTL-2 Class II 350 405 80 70 90 ps SSTL-18 Class I 335 390 65 65 105 ps 1.8-V HSTL Class I 330 385 60 70 110 ps 1.5-V HSTL Class I 330 390 60 70 105 ps LVDS 180 180 180 180 180 ps (1) Table 4-101 assumes the input clock has zero DCD. Table 4-102. Maximum DCD for DDIO Output on Column I/O Pins Without PLL in the Clock Path for -3 Devices (Part 1 of 2) Note (1) Maximum DCD (ps) for DDIO Column Output I/O Standard Input IO Standard (No PLL in the Clock Path) TTL/CMOS SSTL-2 SSTL/HSTL HSTL12 1.8/1.5V 1.2V Unit 3.3/2.5V 1.8/1.5V 2.5V 3.3-V LVTTL 260 380 145 145 145 ps 3.3-V LVCMOS 210 330 100 100 100 ps 2.5 V 195 315 85 85 85 ps 1.8 V 150 265 85 85 85 ps 1.5-V LVCMOS 255 370 140 140 140 ps SSTL-2 Class I 175 295 65 65 65 ps SSTL-2 Class II 170 290 60 60 60 ps SSTL-18 Class I 155 275 55 50 50 ps Table 4-102. Maximum DCD for DDIO Output on Column I/O Pins Without PLL in the Clock Path for -3 Devices (Part 2 of 2) Note (1) Maximum DCD (ps) for DDIO Column Output I/O Standard Input IO Standard (No PLL in the Clock Path) TTL/CMOS SSTL-2 SSTL/HSTL HSTL12 Unit 3.3/2.5V 1.8/1.5V 2.5V 1.8/1.5V 1.2V SSTL-18 Class II 140 260 70 70 70 ps 1.8-V HSTL Class I 150 270 60 60 60 ps 1.8-V HSTL Class II 150 270 60 60 60 ps 1.5-V HSTL Class I 150 270 55 55 55 ps 1.5-V HSTL Class II 125 240 85 85 85 ps 1.2-V HSTL 240 360 155 155 155 ps LVPECL 180 180 180 180 180 ps (1) Table 4-102 assumes the input clock has zero DCD. Table 4-103. Maximum DCD for DDIO Output on Column I/O Pins Without PLL in the Clock Path for -4 and -5 Devices Note (1) Maximum DCD (ps) for DDIO Column Output I/O Standard Input IO Standard (No PLL in the Clock Path) TTL/CMOS SSTL-2 SSTL/HSTL Unit 3.3/2.5V 1.8/1.5V 2.5V 1.8/1.5V 3.3-V LVTTL 440 495 170 160 ps 3.3-V LVCMOS 390 450 120 110 ps 2.5 V 375 430 105 95 ps 1.8 V 325 385 90 100 ps 1.5-V LVCMOS 430 490 160 155 ps SSTL-2 Class I 355 410 85 75 ps SSTL-2 Class II 350 405 80 70 ps SSTL-18 Class I 335 390 65 65 ps SSTL-18 Class II 320 375 70 80 ps 1.8-V HSTL Class I 330 385 60 70 ps 1.8-V HSTL Class II 330 385 60 70 ps 1.5-V HSTL Class I 330 390 60 70 ps 1.5-V HSTL Class II 330 360 90 100 ps LVPECL 180 180 180 180 ps (1) Table 4-103 assumes the input clock has zero DCD. Table 4-104. Maximum DCD for DDIO Output on Row I/O Pins With PLL in the Clock Path Maximum DCD (ps) for Row DDIO Output I/O Standard 3.3-V LVTTL Stratix II GX Devices (PLL Output Feeding DDIO) -3 Device -4 and -5 Device 110 105 Unit ps 3.3-V LVCMOS 65 75 ps 2.5V 75 90 ps 1.8V 85 100 ps 1.5-V LVCMOS 105 100 ps SSTL-2 Class I 65 75 ps SSTL-2 Class II 60 70 ps SSTL-18 Class I 50 65 ps 1.8-V HSTL Class I 50 70 ps 1.5-V HSTL Class I 55 70 ps LVDS 180 180 ps Table 4-105. Maximum DCD for DDIO Output on Column I/O Pins With PLL in the Clock Path (Part 1 of 2) Maximum DCD (ps) for Column DDIO Output I/O Standard Stratix II GX Devices (PLL Output Feeding DDIO) Unit -3 Device -4 and -5 Device 3.3-V LVTTL 145 160 ps 3.3-V LVCMOS 100 110 ps 2.5V 85 95 ps 1.8V 85 100 ps 1.5-V LVCMOS 140 155 ps SSTL-2 Class I 65 75 ps SSTL-2 Class II 60 70 ps SSTL-18 Class I 50 65 ps SSTL-18 Class II 70 80 ps 1.8-V HSTL Class I 60 70 ps 1.8-V HSTL Class II 60 70 ps 1.5-V HSTL Class I 55 70 ps 1.5-V HSTL Class II 85 100 ps Table 4-105. Maximum DCD for DDIO Output on Column I/O Pins With PLL in the Clock Path (Part 2 of 2) Maximum DCD (ps) for Column DDIO Output I/O Standard High-Speed I/O Specifications Stratix II GX Devices (PLL Output Feeding DDIO) Unit -3 Device -4 and -5 Device 1.2-V HSTL 155 155 ps LVPECL 180 180 ps Table 4-106 provides high-speed timing specifications definitions. Table 4-106. High-Speed Timing Specifications and Definitions High-Speed Timing Specifications Definitions tC High-speed receiver/transmitter input and output clock period. fH S C L K High-speed receiver/transmitter input and output clock frequency. J Deserialization factor (width of parallel data bus). W PLL multiplication factor. tR I S E Low-to-high transmission time. tF A L L High-to-low transmission time. Timing unit interval (TUI) The timing budget allowed for skew, propagation delays, and data sampling window. (TUI = 1/(Receiver Input Clock Frequency x Multiplication Factor) = tC /w). fIN Fast PLL input clock frequency fH S D R Maximum/minimum LVDS data transfer rate (fH S D R = 1/TUI), non-DPA. fH S D R D P A Maximum/minimum LVDS data transfer rate (fH S D R D PA = 1/TUI), DPA. Channel-to-channel skew (TCCS) The timing difference between the fastest and the slowest output edges including tCO variation and clock skew across channels driven by the same fast PLL. The clock is included in the TCCS measurement. Sampling window (SW) The period of time during which the data must be valid in order to capture it correctly. The setup and hold times determine the ideal strobe position within the sampling window. Input jitter Peak-to-peak input jitter on high-speed PLLs. Output jitter Peak-to-peak output jitter on high-speed PLLs. tDUTY Duty cycle on high-speed transmitter output clock. tL O C K Lock time for high-speed transmitter and receiver PLLs. Table 4-107 shows the high-speed I/O timing specifications for -3 speed grade Stratix II GX devices. Table 4-107. High-Speed I/O Specifications for -3 Speed Grade Notes (1), (2) -3 Speed Grade Symbol Conditions Unit Min fI N = f H S D R / W fH S D R (data rate) W = 2 to 32 (LVDS, HyperTransport technology) (3) Typ Max 16 520 MHz W = 1 (SERDES bypass, LVDS only) 16 500 MHz W = 1 (SERDES used, LVDS only) 150 717 MHz J = 4 to 10 (LVDS, HyperTransport technology) 150 1,040 Mbps J = 2 (LVDS, HyperTransport technology) (4) 760 Mbps J = 1 (LVDS only) fH S D R D PA (DPA data rate) J = 4 to 10 (LVDS, HyperTransport technology) (4) 500 Mbps 150 1,040 Mbps 200 ps TCCS All differential standards - SW All differential standards 330 Output jitter - ps 190 ps Output tR I S E All differential I/O standards 160 ps Output tFA L L All differential I/O standards 180 ps 55 % tDUTY 45 DPA run length DPA jitter tolerance (5) 6,400 Data channel peak-to-peak jitter 0.44 DPA lock time Parallel Rapid I/O Miscellaneous 0000000000 1111111111 10% 256 00001111 25% 256 10010000 50% 256 10101010 100% 256 01010101 (4) (5) UI UI Number of repetitions SPI-4 (1) (2) (3) 50 256 When J = 4 to 10, the SERDES block is used. When J = 1 or 2, the SERDES block is bypassed. The input clock frequency and the W factor must satisfy the following fast PLL VCO specification: 150 input clock frequency x W 1,040. The minimum specification is dependent on the clock source (fast PLL, enhanced PLL, clock pin, and so on) and the clock routing resource (global, regional, or local) utilized. The I/O differential buffer and input register do not have a minimum toggle rate. For setup details, refer to the characterization report. Table 4-108 shows the high-speed I/O timing specifications for -4 speed grade Stratix II GX devices. Table 4-108. High-Speed I/O Specifications for -4 Speed Grade Notes (1), (2) -4 Speed Grade Symbol Conditions Unit Min fI N = f H S D R / W fH S D R (data rate) W = 2 to 32 (LVDS, HyperTransport technology) (3) Typ Max 16 520 MHz W = 1 (SERDES bypass, LVDS only) 16 500 MHz W = 1 (SERDES used, LVDS only) 150 717 MHz J = 4 to 10 (LVDS, HyperTransport technology) 150 1,040 Mbps J = 2 (LVDS, HyperTransport technology) (4) 760 Mbps J = 1 (LVDS only) fH S D R D PA (DPA data rate) J = 4 to 10 (LVDS, HyperTransport technology) (4) 500 Mbps 150 1,040 Mbps 200 ps TCCS All differential standards - SW All differential standards 330 Output jitter - ps 190 ps Output tR I S E All differential I/O standards 160 ps Output tFA L L All differential I/O standards 180 ps 55 % 6,400 UI tDUTY 45 DPA run length DPA jitter tolerance Data channel peak-to-peak jitter 0.44 DPA lock time SPI-4 0000000000 1111111111 10% 256 Parallel Rapid I/O 00001111 25% 256 10010000 50% 256 10101010 100% 256 01010101 (4) UI Number of repetitions Miscellaneous (1) (2) (3) 50 256 When J = 4 to 10, the SERDES block is used. When J = 1 or 2, the SERDES block is bypassed. The input clock frequency and the W factor must satisfy the following fast PLL VCO specification: 150 input clock frequency x W 1,040. The minimum specification is dependent on the clock source (fast PLL, enhanced PLL, clock pin, and so on) and the clock routing resource (global, regional, or local) utilized. The I/O differential buffer and input register do not have a minimum toggle rate. Table 4-109 shows the high-speed I/O timing specifications for -5 speed grade Stratix II GX devices. Table 4-109. High-Speed I/O Specifications for -5 Speed Grade Notes (1), (2) -5 Speed Grade Symbol Conditions Unit Min fI N = f H S D R / W fH S D R (data rate) W = 2 to 32 (LVDS, HyperTransport technology) (3) Typ Max 16 420 MHz W = 1 (SERDES bypass, LVDS only) 16 500 MHz W = 1 (SERDES used, LVDS only) 150 640 MHz J = 4 to 10 (LVDS, HyperTransport technology) 150 840 Mbps J = 2 (LVDS, HyperTransport technology) (4) 700 Mbps J = 1 (LVDS only) fH S D R D PA (DPA data rate) J = 4 to 10 (LVDS, HyperTransport technology) (4) 500 Mbps 150 840 Mbps 200 ps TCCS All differential I/O standards - SW All differential I/O standards 440 Output jitter - ps 190 ps Output tR I S E All differential I/O standards 290 ps Output tFA L L All differential I/O standards 290 ps 55 % 6,400 UI tDUTY 45 DPA run length DPA jitter tolerance Data channel peak-to-peak jitter 0.44 DPA lock time Parallel Rapid I/O Miscellaneous 0000000000 1111111111 10% 256 00001111 25% 256 10010000 50% 256 10101010 100% 256 01010101 (4) UI Number of repetitions SPI-4 (1) (2) (3) 50 256 When J = 4 to 10, the SERDES block is used. When J = 1 or 2, the SERDES block is bypassed. The input clock frequency and the W factor must satisfy the following fast PLL VCO specification: 150 input clock frequency x W 840. The minimum specification is dependent on the clock source (fast PLL, enhanced PLL, clock pin, and so on) and the clock routing resource (global, regional, or local) utilized. The I/O differential buffer and input register do not have a minimum toggle rate. PLL Timing Specifications Tables 4-110 and 4-111 describe the Stratix II GX PLL specifications when operating in both the commercial junction temperature range (0 to 85 C) and the industrial junction temperature range (-40 to 100 C), except for the clock switchover and phase-shift stepping features. These two features are only supported from the 0 to 100 C junction temperature range. Table 4-110. Enhanced PLL Specifications (Part 1 of 2) Name Description Min Typ Max Unit fIN Input clock frequency 4 500 MHz fINPFD Input frequency to the PFD 4 420 MHz fINDUTY Input clock duty cycle 40 60 % fENDUTY External feedback input clock duty cycle 40 60 % tINJITTER Input or external feedback clock input jitter tolerance in terms of period jitter. Bandwidth 0.85 MHz 0.5 ns (peakto-peak) Input or external feedback clock input jitter tolerance in terms of period jitter. Bandwidth > 0.85 MHz 1.0 ns (peakto-peak) tOUTJITTER Dedicated clock output period jitter tFCOMP External feedback compensation time fOUT Output frequency for internal global or regional clock fOUTDUTY Duty cycle for external clock output fSCANCLK Scanclk frequency tCONFIGEPLL Time required to reconfigure scan chains for EPLLs fOUT_EXT PLL external clock output frequency tLOCK Time required for the PLL to lock from the time it is enabled or the end of device configuration tDLOCK Time required for the PLL to lock dynamically after automatic clock switchover between two identical clock frequencies fSWITCHOVER Frequency range where the clock switchover performs properly 1.5 fCLBW PLL closed-loop bandwidth 0.13 1.5 (2) 45 50 250 ps for 100 MHz outclk 25 mUI for < 100 MHz outclk ps or mUI (p-p) 10 ns 550 MHz 55 % 100 MHz 174/fSCANCLK 1.5 (2) ns (1) MHz 1 ms 1 ms 1 500 MHz 1.2 16.9 MHz 0.03 Table 4-110. Enhanced PLL Specifications (Part 2 of 2) Name fVCO Description Min Typ Max Unit PLL VCO operating range for -3 and -4 speed grade devices 300 1,040 MHz PLL VCO operating range for -5 speed grade devices 300 840 MHz fSS Spread-spectrum modulation frequency 100 500 kHz % spread Percent down spread for a given clock frequency 0.4 0.6 % tP L L _ P S E R R Accuracy of PLL phase shift 30 ps tARESET Minimum pulse width on areset signal. 10 ns tARESET_RECONFIG Minimum pulse width on the areset signal when using PLL reconfiguration. Reset the PLL after scandone goes high. 500 ns tRECONFIGWAIT The time required for the wait after the reconfiguration is done and the areset is applied. (1) (2) 0.5 2 us This is limited by the I/O fMAX. See Tables 4-91 through 4-95 for the maximum. If the counter cascading feature of the PLL is utilized, there is no minimum output clock frequency. Table 4-111. Fast PLL Specifications (Part 1 of 2) Name fIN Description Min Typ Max Unit Input clock frequency (for -3 and -4 speed grade devices) 16 717 MHz Input clock frequency (for -5 speed grade devices) 16 640 MHz fINPFD Input frequency to the PFD 16 500 MHz fINDUTY Input clock duty cycle 40 60 % tINJITTER Input clock jitter tolerance in terms of period jitter. Bandwidth 2 MHz 0.5 ns (p-p) Input clock jitter tolerance in terms of period jitter. Bandwidth > 0.2 MHz 1.0 ns (p-p) Table 4-111. Fast PLL Specifications (Part 2 of 2) Name fVCO fOUT Description Min Upper VCO frequency range for -3 and -4 speed grades Max Unit 300 1,040 MHz Upper VCO frequency range for -5 speed grades 300 840 MHz Lower VCO frequency range for -3 and -4 speed grades 150 520 MHz Lower VCO frequency range for -5 speed grades 150 420 MHz 4.6875 550 MHz 150 1,040 MHz 4.6875 (1) MHz PLL output frequency to GCLK or RCLK PLL output frequency to LVDS or DPA clock Typ fOUT_EXT PLL clock output frequency to regular I/O tCONFIGPLL Time required to reconfigure scan chains for fast PLLs fCLBW PLL closed-loop bandwidth tLOCK Time required for the PLL to lock from the time it is enabled or the end of the device configuration tPLL_PSERR Accuracy of PLL phase shift tARESET Minimum pulse width on areset signal. 10 ns tARESET_RECONFIG Minimum pulse width on the areset signal when using PLL reconfiguration. Reset the PLL after scandone goes high. 500 ns (1) 75/fSCANCLK 1.16 ns 5 28 MHz 0.03 1 ms 30 ps This is limited by the I/O fMAX. See Tables 4-91 through 4-95 for the maximum. External Memory Interface Specifications Tables 4-112 through 4-116 contain Stratix II GX device specifications for the dedicated circuitry used for interfacing with external memory devices. Table 4-112. DLL Frequency Range Specifications (Part 1 of 2) Frequency Mode Frequency Range (MHz) Resolution (Degrees) 0 100 to 175 30 1 2 150 to 230 22.5 200 to 350 (-3 speed grade) 30 200 to 310 (-4 and -5 speed grade) 30 Table 4-112. DLL Frequency Range Specifications (Part 2 of 2) Frequency Range (MHz) Resolution (Degrees) 240 to 400 (-3 speed grade) 36 240 to 350 (-4 and -5 speed grade) 36 Frequency Mode 3 Table 4-113. DQS Jitter Specifications for DLL-Delayed Clock (tDQS_JITTER) Note (1) Number of DQS Delay Buffer Stages (2) Commercial (ps) Industrial (ps) 1 80 110 2 110 130 3 130 180 4 160 210 (1) (2) Peak-to-peak period jitter on the phase-shifted DQS clock. For example, jitter on two delay stages under commercial conditions is 200 ps peak-to-peak or 100 ps. Delay stages used for requested DQS phase shift are reported in a project's Compilation Report in the Quartus II software. Table 4-114. DQS Phase-Shift Error Specifications for DLL-Delayed Clock (tDQS_PSERR) Number of DQS Delay Buffer Stages (1) -3 Speed Grade (ps) -4 Speed Grade (ps) -5 Speed Grade (ps) (1) 1 25 30 35 2 50 60 70 3 75 90 105 4 100 120 140 Delay stages used for request DQS phase shift are reported in a project's Compilation Report in the Quartus II software. For example, phase-shift error on two delay stages under -3 conditions is 50 ps peak-to-peak or 25 ps. Table 4-115. DQS Bus Clock Skew Adder Specifications (tDQS_CLOCK_SKEW_ADDER) (1) Mode DQS Clock Skew Adder (ps) (1) 4 DQ per DQS 40 9 DQ per DQS 70 18 DQ per DQS 75 36 DQ per DQS 95 This skew specification is the absolute maximum and minimum skew. For example, skew on a 40 DQ group is 40 ps or 20 ps. Table 4-116. DQS Phase Offset Delay Per Stage (ps) Positive Offset Notes (1), (2), (3) Negative Offset Speed Grade (1) (2) (3) JTAG Timing Specifications Min Max Min Max -3 10 15 8 11 -4 10 15 8 11 -5 10 16 8 12 The delay settings are linear. The valid settings for phase offset are -32 to +31. The typical value equals the average of the minimum and maximum values. Figure 4-14 shows the timing requirements for the JTAG signals Figure 4-14. Stratix II GX JTAG Waveforms. TMS TDI t JCP t JCH t JCL t JPSU t JPH TCK tJPZX t JPXZ t JPCO TDO tJSSU Signal to be Captured Signal to be Driven tJSZX tJSH tJSCO tJSXZ Table 4-117 shows the JTAG timing parameters and values for Stratix II GX devices. Table 4-117. Stratix II GX JTAG Timing Parameters and Values Symbol Parameter Min Max Unit tJCP TCK clock period 30 ns tJCH TCK clock high time 12 ns tJCL TCK clock low time 12 ns tJPSU JTAG port setup time 4 ns tJPH JTAG port hold time 5 tJPCO JTAG port clock to output 9 ns tJPZX JTAG port high impedance to valid output 9 ns tJPXZ JTAG port valid output to high impedance 9 ns tJSSU Capture register setup time 4 ns tJSH Capture register hold time 5 ns tJSCO Update register clock to output tJSZX Update register high impedance to valid output 12 ns tJSXZ Update register valid output to high impedance 12 ns ns 12 ns Referenced Documents This chapter references the following documents: Operating Requirements for Altera Devices Data Sheet PowerPlay Power Analyzer chapter in volume 3 of the Quartus II Handbook. PowerPlay Early Power Estimator (EPE) and Power Analyzer Quartus II PowerPlay Analysis and Optimization Technology Stratix II GX Architecture chapter in volume 1 of the Stratix II GX Device Handbook Stratix II GX Transceiver Architecture Overview chapter in volume 2 of the Stratix II GX Device Handbook Volume 2, Stratix II GX Device Handbook Document Revision History Table 6-105 shows the revision history for this chapter. Table 4-118. Document Revision History (Part 1 of 5) Date and Document Version June 2009 v4.6 October 2007 v4.5 Changes Made Replaced Table 4-31 Updated: Table 4-5 Table 4-6 Table 4-7 Table 4-8 Table 4-9 Table 4-10 Table 4-11 Table 4-12 Table 4-13 Table 4-14 Table 4-15 Table 4-16 Table 4-17 Table 4-18 Table 4-20 Table 4-50 Table 4-95 Table 4-105 Table 4-110 Table 4-111 Updated: Table 4-3 Table 4-6 Table 4-16 Table 4-19 Table 4-20 Table 4-21 Table 4-22 Table 4-55 Table 4-106 Table 4-107 Table 4-108 Table 4-109 Table 4-112 Updated title only in Tables 4-88 and 4-89. Minor text edits. Summary of Changes Table 4-118. Document Revision History (Part 2 of 5) Date and Document Version August 2007 v4.4 Changes Made Removed note "The data in this table is preliminary. Altera will provide a report upon completion of characterization of the Stratix II GX devices. Conditions for testing the silicon have not been determined." from each table. Removed note "The data in Tables xxx through xxx is preliminary. Altera will provide a report upon completion of characterization of the Stratix II GX devices. Conditions for testing the silicon have not been determined." in the clock timing parameters sections. Updated clock timing parameter Tables 4-63 through 4-78 (Table 4-75 was unchanged). Updated Table 4-21 and added new Table 4-22. Updated: Table 4-6 Table 4-16 Table 4-19 Table 4-49 Table 4-52 Table 4-107 Added note to Table 4-50. Added: Figure 4-3 Figure 4-4 Figure 4-5 Added the "Referenced Documents" section. May 2007 v4.3 Changed 1.875 KHz to 1.875 MHz in Table 4-19, XAUI Receiver Jitter Tolerance section. Summary of Changes Table 4-118. Document Revision History (Part 3 of 5) Date and Document Version February 2007 v4.2 Changes Made Added the "Document Revision History" section to this chapter. Updated Table 4-5: Removed last three lines Removed note 1 Added new note 4 Deleted table 6-6. Replaced Table 4-6 with all new information. Added Figures 4-1 and 4-2. Added Tables 4-7 through 4-19. Removed Figures 6-1 through 6-4. Updated Table 4-22: Changed RCONF information. Updated Table 4-52 SSTL-18 Class I, column 1: changed 25 to 50. Updated: Table 4-54 Table 4-87 Table 4-91 Table 4-94 Updated Tables 4-62 through 4-77 Updated Tables 4-79 and 4-80 Added "units" column Updated Tables 4-83 through 4-86 Changed column title to "Fast Corner Industrial/Commercial". Updated Table 4-109. Added a new line to the bottom of the table. August 2006 v4.1 Update Table 6-75, Table 6-84, and Table 6-90. Summary of Changes Added support information for the Stratix II GX device. Table 4-118. Document Revision History (Part 4 of 5) Date and Document Version June 2006, v4.0 Changes Made Updated Table 6-5. Updated Table 6-6. Updated all values in Table 6-7. Added Tables 6-8 and 6-9. Added Figures 6-1 through 6-4. Updated Table 6-18. Updated Tables 6-85 through 6-96. Added Table 6-80, Stratix II GX Maximum Output Clock Rate for Dedicated Clock Pins. Updated Table 6-100. In "I/O Timing Measurement Methodology" section, updated Table 6-42. In "Internal Timing Parameters" section, updated Tables 6-43 through 6-48. In "Stratix II GX Clock Timing Parameters" section, updated Tables 6-50 through 6-65. In "IOE Programmable Delay" section, updated Tables 6-67 and 6-68. In "I/O Delays" section, updated Tables 6-71 through 6-74. In "Maximum Input & Output Clock Toggle Rate" section, updated Tables 6-75 through 6-83. In "DCD Measurement Techniques" section, updated Tables 6-85 through 6-92. In "High-Speed I/O Specifications" section, updated Tables 6-94 through 6-96. In "External Memory Interface Specifications" section, updated Table 6-100. Summary of Changes Removed rows for VI D , VO D, VI C M , and VO C M from Table 6-5. Updated values for rx, tx, and refclkb in Table 6-6. Removed table containing 1.2-V PCML I/O information. That information is in Table 6-7. Added values to Table 6-100. Table 4-118. Document Revision History (Part 5 of 5) Date and Document Version April 2006, v3.0 Changes Made February 2006, v2.1 Updated Table 6-3. Updated Table 6-5. Updated Table 6-7. Added Table 6-42. Updated "Internal Timing Parameters" section (Tables 6-43 through 6-48). Updated "Stratix II GX Clock Timing Parameters" section (Tables 6-49 through 6-65). Updated "IOE Programmable Delay" section (Tables 6-67 and 6-68) Updated "I/O Delays" section (Tables 6-71 through 6-74. Updated "Maximum Input & Output Clock Toggle Rate" section. Replaced tables 6-73 and 6-74 with Tables 6-75 through 6-83. Input and output clock rates for row, column, and dedicated clock pins are now in separate tables. Updated Tables 6-4 and 6-5. Updated Tables 6-49 through 6-65 (removed column designations for industrial/commercial and removed industrial numbers). December 2005, Updated timing numbers. v2.0 October 2005 v1.1 October 2005 v1.0 Updated Table 6-7. Updated Table 6-38. Updated 3.3-V PCML information and notes to Tables 6-73 through 6-76. Minor textual changes throughout the document. Added chapter to the Stratix II GX Device Handbook. Summary of Changes 5. Reference and Ordering Information SIIGX51007-1.3 Software Stratix (R) II GX devices are supported by the Altera(R) Quartus(R) II design software, which provides a comprehensive environment for system-on-a-programmable-chip (SOPC) design. The Quartus II software includes HDL and schematic design entry, compilation and logic synthesis, full simulation and advanced timing analysis, SignalTap(R) II logic analyzer, and device configuration. f Refer to the Quartus II Development Software Handbook for more information on the Quartus II software features. The Quartus II software supports the Windows XP/2000/NT, Sun Solaris 8/9, Linux Red Hat v7.3, Linux Red Hat Enterprise 3, and HP-UX operating systems. It also supports seamless integration with industry-leading EDA tools through the NativeLink interface. Device Pin-Outs Stratix II GX device pin-outs (Pin-Out Files for Altera Devices) are available on the Altera web site at www.altera.com. Ordering Information Figure 5-1 describes the ordering codes for Stratix II GX devices. f For more information on a specific package, refer to the Package Information for Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II GX Device Handbook. Referenced Documents Figure 5-1. Stratix II GX Device Packaging Ordering Information EP2SGX 130 G F 40 C 3 Family Signature Optional Suffix EP2SGX: Stratix II GX Indicates specific device options or shipment method. Engineering sample ES: Lead free N: NES: Lead-free engineering sample Device Type 30 60 90 130 Speed Grade 3, 4, or 5, with 3 being the fastest Number of Transceiver Channels Operating Temperature C: Commercial temperature (tJ = 0 C to 85 C) I: Industrial temperature (tJ = -40 C to 100 C) C: 4 D: 8 E: 12 F: 16 G: 20 Pin Count Package Type F: FineLine BGA (1) ES 780 1,152 (1) 1,508 Product code notations for ES silicon for all EP2SGX130 family members (standard and lead free) and EP2SGX90 (lead free) use the following codings to denote pin count: 35 for 1152-pin devices and 40 for 1508-pin devices Referenced Documents This chapter references the following documents: Document Revision History Package Information for Stratix II & Stratix II GX Devices chapter in volume 2 of the Stratix II GX Device Handbook Pin-Out Files for Altera Devices Quartus II Development Software Handbook Table 5-1 shows the revision history for this chapter. Table 5-1. Document Revision History (Part 1 of 2) Date and Document Version August 2007 v1.3 Changes Made Summary of Changes Added the "Referenced Documents" section. Minor text edits. 5-2 Stratix II GX Device Handbook, Volume 1 Altera Corporation August 2007 Reference and Ordering Information Table 5-1. Document Revision History (Part 2 of 2) Date and Document Version Changes Made February 2007 v1.2 Added the "Document Revision History" section. June 2006, v1.1 October 2005 v1.0 Summary of Changes Added support information for the Stratix II GX device. Updated "Device Pin-Outs" section. Updated Figure 7-1. Added chapter to the Stratix II GX Device Handbook. Altera Corporation August 2007 5-3 Stratix II GX Device Handbook, Volume 1 Document Revision History 5-4 Stratix II GX Device Handbook, Volume 1 Altera Corporation August 2007