eZ80F920020MOD eZ80F92 Flash Module Product Specification PS018906-0908 Copyright (c)2008 by Zilog(R), Inc. All rights reserved. www.zilog.com Warning: DO NOT USE IN LIFE SUPPORT LIFE SUPPORT POLICY ZILOG'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS PRIOR WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF ZILOG CORPORATION. As used herein Life support devices or systems are devices which (a) are intended for surgical implant into the body, or (b) support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in a significant injury to the user. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system or to affect its safety or effectiveness. Document Disclaimer (c)2008 by Zilog, Inc. All rights reserved. Information in this publication concerning the devices, applications, or technology described is intended to suggest possible uses and may be superseded. ZILOG, INC. DOES NOT ASSUME LIABILITY FOR OR PROVIDE A REPRESENTATION OF ACCURACY OF THE INFORMATION, DEVICES, OR TECHNOLOGY DESCRIBED IN THIS DOCUMENT. Z I L O G A L S O D O E S N O T A S S U M E L I A B I L I T Y F O R I N T E L L E C T U A L P R O P E RT Y INFRINGEMENT RELATED IN ANY MANNER TO USE OF INFORMATION, DEVICES, OR TECHNOLOGY DESCRIBED HEREIN OR OTHERWISE. The information contained within this document has been verified according to the general principles of electrical and mechanical engineering. eZ80 and eZ80Acclaim! are registered trademarks of Zilog, Inc. All other product or service names are the property of their respective owners. PS018906-0908 eZ80F92 Flash Module Product Specification iii Revision History Each instance in Revision History reflects a change to this document from its previous revision. For more details, refer to the corresponding pages and appropriate links in the table below. Date PS018906-0908 Revision Level Description Page Number September 2008 06 Removed Preliminary. Updated as per All latest template and style guide changes. December 2003 05 Fixed incorrect conditional indicators. August 2003 04 Modified to remove All zservice@zilog.com and other external hyperlinks to documentation. February 2003 03 Fixed incorrect hyperlinks. January 2003 02 Modified references for eZ80Acclaim!(R). All All All Revision History eZ80F92 Flash Module Product Specification iv Table of Contents Architectural Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . eZ80F92 Flash Module Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . eZ80F92 Flash Module Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . eZ80F92 Controller Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 2 4 5 Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Peripheral Bus Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 I/O Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Onboard Component Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Logic-Level I/Os . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Onboard Battery Backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wait States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Static RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Flash Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IrDA Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reset Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Serial Interface Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mounting the Module onto the eZ80(R) Development Platform . . . . . . . . . . . . . . ESD/EMI Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 13 13 13 13 14 14 14 15 15 16 18 19 19 20 Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 PS018906-0908 Table of Contents eZ80F92 Flash Module Product Specification 1 Architectural Overview Zilog's eZ80F92 Flash Module is a low-cost, general-purpose compact module. It is specially designed for the rapid development and deployment of embedded systems. This expandable module is powered by Zilog's latest power-efficient, high-speed, optimized pipeline architecture eZ80F92 Microcontroller Unit (MCU). This MCU, the first device in Zilog's eZ80Acclaim!(R) product line, features 128 KB of on-chip Flash memory and 8 KB of on-chip SRAM. The eZ80F92 MCU is a high-speed, single-cycle instruction-fetch MCU, which can operate with a clock speed of 20 MHz. It can operate in Z80(R)-compatible addressing mode (64 KB) or full 24-bit addressing mode (16 MB). The rich peripheral set of the eZ80F92 Flash Module makes it suitable for a variety of applications, including industrial control, IrDA connectivity, communication, security, automation, point-of-sale (POS) terminals. Note: The eZ80F92 Flash Module incorporates the eZ80F92 MCU. The eZ80F92 can be replaced with the eZ80F93 MCU, which features 64 KB of internal Flash memory and 4 KB of internal SRAM. eZ80F92 Flash Module Features The key features of eZ80F92 Flash Module include: PS018906-0908 * * * * * * * * * eZ80Acclaim! Flash MCU with factory-default operating clock frequency at 20 MHz * * * * * Low-cost adaptation to carrier board via two 2 x 25 pin (2.54 mm) headers 512 KB zero-wait-state onboard SRAM 128 KB on-chip Flash memory GoldCap backup for Real-Time Clock (RTC) Input/Output (I/O) connector provides 24 general-purpose 5 V-tolerant I/O pinouts Zilog's industry-leading IrDA transceiver--Zilog's ZHX1810 I/O circuit Flash programming circuitry Onboard connector provides I2C 2-wire SDA/SCL interface Onboard connector provides I/O bus for external peripheral connections (IRQ, CS, 24 address, 8 data) Horizontal or vertical mounting onto the eZ80(R) Development Platform Small footprint 64 x 64 mm 3.3 V power supply Standard operating temperature range: 0 C to +70 C Architectural Overview eZ80F92 Flash Module Product Specification 2 eZ80F92 Flash Module Bill of Materials Table 1 lists the installed components of the eZ80F92 Flash Module. Table 1. Bill of Materials for the eZ80F92 Flash Module Part Name 98C0873-001 FAB, eZ80F92/93 MODULE, Rev. A 1 -- 35-0180-12 IC, SRAM, 512K x 8, 12 ns, 3 V, 36-SOJ 1 U1 Alliance Semi. AS7C34096-12JC 35-0016-05 IC, 74LVC04, 3.3 V, GATE, 14-SOIC 1 U2 Texas Instruments SN74LVC04AD 35-0719-00 IC, MAX6328, RESET, SOT-23 1 U4 Maxim Inc. MAX6328UR29-T ZHX1810 IC, IR Transceiver, low profile 1 U5 Zilog Inc. ZHX1810MV115THTR 35-0062-01 IC, 74LCX32, LV, QUAD, or 14-TSSOP 1 U6 Fairchild Semi. 74LCX32MTC EZ80F92 IC, eZ80F92AZ020SC, 20 MHZ, 100 V QFP 1 U8 Zilog Inc. EZ80F92AZ020SC 48-1013-01 DIODE, TVS ARRAY, XCVR PROT, 8-SOIC 1 U9 Semtec LCDA15C-6 17-2005-70 CAP, 1, 000 pF, 50 V, ceramic chip, 0603 5 C3, C5, C21-23 17-2005-66 CAP, 0.1 F, 16 V, ceramic chip, 0603 9 17-2005-54 CAP, 0.01 F, 50 V, ceramic chip, 0603 1 C10 Panasonic ECJ-1VB1C103K 17-2005-83 CAP, 0.33 F, 16 V, ceramic chip, 0603 1 C11 Panasonic ECJ-1VF1C334Z 17-2005-39 CAP, 560 pF, 50 V, ceramic chip, 0603 1 C12 Panasonic ECJ-1VC1H561J 17-2001-03 CAP, 12 pF, 50 V, ceramic chip, 0603 4 15-0100-01 CAP, 1.10 F, 5.5 V, GOLD, SD, COIN 1 C19 Panasonic EEC-SOHD104V 48-0030-04 Diode, Schottky, Power rectifier, SMT 1 D1 On Semiconductor MBR0520LT1 PS018906-0908 Qty. Jumper Location Manufacturer Part Number Prime Technologies Panasonic ECJ-1VC1H102J C4, C6-9, Kemet Inc. C13-15, C0603C104K5RAC C18 C16, C17, Panasonic C20, C24 ECJ-1VC1H120J Architectural Overview eZ80F92 Flash Module Product Specification 3 Table 1. Bill of Materials for the eZ80F92 Flash Module (Continued) Part Name 46-3001-03 Resistor, 10 k, 1%, 1/16 W, 0603 SMT 9 46-3000-00 Resistor, 0 , 1%, 1/16 W, 0603 SMT 2 R2, C25 " 46-3000-71 Resistor, 2.21 k, 1%, 1/16W, 0603 SMT 3 R3, R10, R33 " 46-3000-35 Resistor, 68 , 1%, 1/16 W, 0603 SMT 1 R5 " 46-1005-03 Resistor, 2.7 , 5%, 1/4 W, 1206 SMT 1 R6 " 46-3001-03 Resistor, 4.75 k, 1%, 1/16 W, 0603 SMT 4 R7, 8, 13, 22 " 46-3000-27 Resistor, 33.2 , 1%, 1/16 W, 0603 SMT 1 R9 " 46-3000-39 Resistor, 100 , 1%, 1/16 W, 0603 SMT 5 R20, 21, 26, 28, 32 " 46-3000-80 Resistor, 4.99 k, 1%, 1/16 W, 0603 SMT 1 R23 " 46-3000-07 Resistor, 8.2 , 1%, 1/16 W, 0603 SMT 2 R24, R25 " 46-3001-51 Resistor, 1M , 1%, 1/16 W, 0603 SMT 1 R27 " 23-0000-10 Internal crystal, 20.0000 MHz, SER/RESN, HC-49S 2 Y1, Y2 23-0006-00 Internal crystal, 32.768 kHz, SER/RESN, TF CASE 1 Y3 NDK MX-38 21-0055-02 Connector, HDR/PIN,. 025SQ, double row 2 JP1, JP2 " PS018906-0908 Qty. Jumper Location Manufacturer Part Number R1, 11, 12, Sprague 17, 19, 29, 420CK472X2PD 30, 34, 36 Fox Series HC-49S 20.0000 MHz Architectural Overview eZ80F92 Flash Module Product Specification 4 eZ80F92 Controller Features The key features of eZ80F92 include: Note: PS018906-0908 * * * The eZ80F92 device contains 128 KB of Flash memory and 8 KB of SRAM * Two Universal Asynchronous Receiver/Transceivers (UARTs) with independent baud rate generators and support for 9-bit operation * * * * Serial Peripheral Interface (SPI) with independent clock rate generator * Glueless external memory interface with four chip selects, individual wait state generators, and an external WAIT input pin--supports Intel- and Motorola-style buses * * Fixed-priority vectored interrupts (both internal and external) and interrupt controller * * * * * * * Six 16-bit Counter/Timers with prescalers and direct input/output drive Single-cycle instruction fetch, high-performance, and pipelined eZ80(R) CPU core Low power features including SLEEP mode, HALT mode, and selective peripheral power-down control I2C with independent clock rate generator Infrared Data Association (IrDA)-compliant infrared encoder/decoder New Direct Memory Access (DMA)-like eZ80 CPU instructions for efficient block data transfer RTC with an on-chip 32 kHz oscillator, selectable 50/60 Hz input, and separate VDD pin for battery backup Watchdog Timer (WDT) 24 bits of general-purpose input/output (GPIO) JTAG and ZDI debug interfaces 100-pin LQFP package 3.0 V to 3.6 V supply voltage with 5 V tolerant inputs Standard operating temperature range: 0 C to +70 C All signals with an overline are active Low. For example, B/W, for which WORD is active Low, and B/W, for which BYTE is active Low. Architectural Overview eZ80F92 Flash Module Product Specification 5 Block Diagram Figure 1 displays a block diagram of the eZ80F92 Flash Module. Gold Cap 32 kHz XTAL XTAL/Osc 50-Pin Connector IrDA Transceiver PD PC PB Real-Time Clock eZ80 CPU UART 128 KB Flash Watchdog Timer UART 24-Bit GPIO ZDI/JTAG SPI 6 Timer 8 KB SRAM Power-On Reset Bus Controller I2C 50-Pin Connector 512 KB SRAM Figure 1. eZ80F92 Flash Module Functional Block Diagram PS018906-0908 Architectural Overview eZ80F92 Flash Module Product Specification 6 Pin Description Peripheral Bus Connector Figure 2 displays the pin layout of the eZ80F92 Flash Module's I/O Connector (JP1) in the 50-pin package. Table 2 on page 7 lists the pins and their functions. A6 A10 GND_EXT A8 A13 A15 A18 A19 A2 A11 A4 A5 DIS_ETH A21 A22 CS0 CS2 D1 D3 D5 D7 MREQ GND_EXT WR BUSACK JP1 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 A0 A3 V3.3_EXT A7 A9 A14 A1 6 GND_EXT A1 A12 A20 A17 DIS_FLASH V3.3_EXT A23 CS1 D0 D2 D4 GND_EXT D6 IOREQ RD INSTRD BUSREQ HEADER 25X2 IDC50 Figure 2. eZ80F92 Flash Module Peripheral Bus Connector Pin Configuration PS018906-0908 Pin Description eZ80F92 Flash Module Product Specification 7 Table 2. eZ80F92 Flash Module Peripheral Bus Connector Pin Identification* Pin No. Symbol 1 A6 Bidirectional 2 A0 Bidirectional 3 A10 Bidirectional 4 A3 Bidirectional 5 GND VSS/Ground (0 V). 6 VDD 3.3 V Supply Input Pin. 7 A8 Bidirectional 8 A7 Bidirectional 9 A13 Bidirectional 10 A9 Bidirectional 11 A15 Bidirectional 12 A14 Bidirectional 13 A18 Bidirectional 14 A16 Bidirectional 15 A19 Bidirectional 16 GND 17 A2 Bidirectional 18 A1 Bidirectional 19 A11 Bidirectional 20 A12 Bidirectional 21 A4 Bidirectional 22 A20 Bidirectional 23 A5 Bidirectional 24 A17 Bidirectional 25 DIS_ETH PU 10 k Input This pin is not used on the eZ80F92 Flash Module. However, it is connected to the pad of the CS8900 EMAC footprint. 26 DIS_FLASH PU 10 k Input This pin is not used on the eZ80F92 Flash Module. However, it is connected to the pad of the external Flash footprint. PS018906-0908 Pull Up/Down* Signal Direction Comments VSS/Ground (0 V). Pin Description eZ80F92 Flash Module Product Specification 8 Table 2. eZ80F92 Flash Module Peripheral Bus Connector Pin Identification* (Continued) Pin No. Symbol Pull Up/Down* 27 A21 28 VDD 29 A22 Bidirectional 30 A23 Bidirectional 31 CS0 Output 32 CS1 Output 33 CS2 Output 34 D0 PU 4k7 Bidirectional 35 D1 PU 4k7 Bidirectional 36 D2 PU 4k7 Bidirectional 37 D3 PU 4k7 Bidirectional 38 D4 PU 4k7 Bidirectional 39 D5 PU 4k7 Bidirectional 40 GND 41 D7 42 D6 Bidirectional 43 MREQ Bidirectional 44 IORQ Bidirectional 45 GND 46 RD Bidirectional 47 WR Bidirectional 48 INSTRD Output 49 BUSACK Output 50 BUSREQ Signal Direction Comments Bidirectional 3.3 V supply input pin. VSS/Ground (0 V). PU 4k7 Bidirectional VSS/Ground (0 V). PU 2k2 Input * External capacitive loads on RD, WR, IORQ, MREQ, D0-D7, and A0-A23 should be below 10 pF to satisfy timing requirements for the CPU. All unused inputs should be pulled to either VDD or GND, depending on their inactive levels to reduce power consumption and to reduce noise sensitivity. To prevent EMI, the eZ80CLK output can be deactivated via software in the eZ80F92 Peripheral Power-Down Register. All inputs are CMOS level 3.3 V (5 V tolerant), except otherwise noted. PS018906-0908 Pin Description eZ80F92 Flash Module Product Specification 9 I/O Connector Figure 3 displays the pin layout of the eZ80F92 Flash Module's I/O Connector (JP2) in the 50-pin package. Table 3 on page 9 lists the pins and their functions. PB7 PB5 PB3 PB1 GND_EXT PC6 PC4 PC2 PC0 PD6 PD5 PD3 PD1 TDO GND_EXT TCK RTC_VDD IICSCL IICSDA FLASHWE CS3 RESET V3.3_EXT HALT_SLP V3.3_EXT JP2 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 PB6 PB4 PB2 PB0 PC7 PC5 PC3 PC1 PD7 GND_EXT PD4 PD2 PD0 TDI TRIGOUT TMS EZ80CLK GND_EXT DIS_IRDA WAIT GND_EXT NMI HEADER 25X2 IDC50 Figure 3. eZ80F92 Flash Module I/O Connector Pin Configuration Table 3. eZ80F92 Flash Module I/O Connector Pin Identification* Pin No. Symbol 1 PB7 Bidirectional 2 PB6 Bidirectional 3 PB5 Bidirectional 4 PB4 Bidirectional 5 PB3 Bidirectional 6 PB2 Bidirectional 7 PB1 Bidirectional PS018906-0908 Pull Up/Down Signal Direction Comments Pin Description eZ80F92 Flash Module Product Specification 10 Table 3. eZ80F92 Flash Module I/O Connector Pin Identification* (Continued) Pin No. Symbol Pull Up/Down Signal Direction 8 PB0 9 GND 10 PC7 Bidirectional 11 PC6 Bidirectional 12 PC5 Bidirectional 13 PC4 Bidirectional 14 PC3 Bidirectional 15 PC2 Bidirectional 16 PC1 Bidirectional 17 PC0 Bidirectional 18 PD7 Bidirectional 19 PD6 Bidirectional 20 GND 21 PD5 22 PD4 23 PD3 Bidirectional 24 PD2 Bidirectional 25 PD1 Bidirectional 26 PD0 Bidirectional 27 TDO Output JTAG Data Output pin. 28 TDI/ZDA Input JTAG Data Input pin. ZDA Bidirectional ZDI Data I/O. Comments Bidirectional VSS/Ground (0 V). VSS/Ground (0 V). Bidirectional PD 4k7 Bidirectional 29 GND 30 TRIGOUT 31 TCK PU 10 k Input JTAG Input. High on reset enables ZDI mode; Low on reset enables OCI debug. 32 TMS PU 10 k Input JTAG Test Mode Select Input. 33 RTC_VDD 34 EZ80CLK PS018906-0908 VSS/Ground (0 V). Output Active High trigger event indicator. RTC supply from GoldCap (or external battery). Output 20 MHz synchronous CPU clock output. Pin Description eZ80F92 Flash Module Product Specification 11 Table 3. eZ80F92 Flash Module I/O Connector Pin Identification* (Continued) Pin No. Symbol Pull Up/Down Signal Direction Comments 35 SCL PU 4k7 Bidirectional I2C Bus Clock. 36 GND 37 SDA 38 GND 39 FlashWE 40 GND 41 CS3 42 DIS_IRDA PU 10 k Input Low disables onboard IRDA transceiver to use PD0/ PD1 UART pins externally. 43 RESET PU 2k2 Bidirectional Reset Output from module or push-button reset. 44 WAIT PU 2k2 Input Driving the WAIT pin Low forces the CPU to provide additional clock cycles for an external peripheral or external memory to complete its Read or Write operation. 45 VDD 3.3 V supply input pin. 46 GND VSS/Ground (0 V). 47 HALT_SLP 48 NMI PU 10 k Schmitt_Trigger The NMI input is a higher priority input than the Input, Active maskable interrupts. It is always recognized at the Low end of an instruction, regardless of the state of the interrupt enable control bits. This input includes a Schmitt_Trigger to allow RC rise times. This external NMI signal is combined with an internal NMI signal generated from the WDT block before being connected to the NMI input of the CPU. 49 VDD 3.3 V supply input pin. PS018906-0908 VSS/Ground (0 V). PU 4k7 Bidirectional I2C Data Clock. VSS/Ground (0 V). PU 10 k Input This pin has no function on the eZ80F92 Flash Module. It is pulled up to VDD and a connection is available on the external Flash memory pads. VSS/Ground (0 V). Output Output, Active Low Chip select for onboard or external devices; CMOS output 3.3 V. A Low on this pin indicates that the CPU enters either HALT or SLEEP mode because of execution of either a HALT or SLP instruction. Pin Description eZ80F92 Flash Module Product Specification 12 Table 3. eZ80F92 Flash Module I/O Connector Pin Identification* (Continued) Pin No. Symbol 50 Reserved Pull Up/Down Signal Direction Comments * External capacitive loads on RD, WR, IORQ, MREQ, D0-D7, and A0-A23 should be below 10 pF to satisfy timing requirements for the CPU. All unused inputs should be pulled to either VDD or GND, depending on their inactive levels, to reduce power consumption and to reduce noise sensitivity. To prevent EMI, the eZ80CLK output can be deactivated via software in the eZ80F91 Peripheral Power-Down Register. All inputs are CMOS level 3.3 V (5 V tolerant), except otherwise noted. PS018906-0908 Pin Description eZ80F92 Flash Module Product Specification 13 Onboard Component Description Logic-Level I/Os The I/O connector features 24 general-purpose 3.3 V CMOS I/O pins that can be used as outputs or inputs interfacing to external logic. All I/Os are 5 V tolerant. Some of the GPIO pins support dual mode functions (SPI, Timer I/O, UARTs, and bit I/O with edge- or leveltriggered interrupt functions on each pin). For more information on eZ80F92 dual modes, refer to eZ80F92/eZ80F93 Product Specification (PS0153). Onboard Battery Backup An onboard 0.1 F capacitor (GoldCap) is used to bridge power outages of 2-4 hours if the power supply to the module is disconnected. The capacitor is charged to 3.1 V during normal operation and is discharged through the on-chip RTC. The VRTC pin is available on the I/O connector of the module to connect external components to a power supply or to a larger GoldCap. Caution: Do not connect a Lithium Battery to the GoldCap capacitor, because onboard charging circuitry for the capacitor can destroy the lithium battery. Memory The eZ80F92 Flash Module offers external SRAM memory and Flash memories. The wait states selectable in the eZ80F92 MCU's support memory operations, as described in this section. Wait States To ensure that valid data is read from or written to slower memories, a number of wait states must be inserted into the memory or I/O access operations by the controller. The number of wait states that are required should be added by programming the chip select control registers. To calculate the minimum number of wait states required, see Table 4. Table 4. Chip Frequency to Wait State Cycle Time Calculation PS018906-0908 MHz Cycle Time 12 83.3 ns 20 50.0 ns Onboard Component Description eZ80F92 Flash Module Product Specification 14 Static RAM The eZ80F92 Flash Module features 512 KB of fast SRAM. Access speed is typically 50 ns, allowing zero-wait-state operation at 20 MHz. With the CPU at 20 MHz, SRAM can be accessed with zero wait states in eZ80(R) mode. CS1_CTL (chip select CS1) can be set to 08h (no wait states). Flash Memory The eZ80F92 Flash Module allows NOR Flash memories between 4 megabits (512 KB) and 32 megabits (4 MB) to be added. The chips are housed in wide TSOP40 cases. Flash ROM access times are 55 ns to 150 ns; typically 90 ns. The Flash Boot Loader, application code, and user configuration data are held permanently in NOR Flash memory. NOR Flash should be operated in Intel bus mode to satisfy setup and hold times and to prevent bus contention with a WRITE cycle that could possibly follow. For proper CPU operation at 20 MHz, first set the bus mode control register CS0_BMC (I/O address 0xF0h) to 82h, then set the Chip Select Control register CS0_CTL (I/O address 0xAAh) to 08h. These settings select Intel Bus Mode with two system clocks per bus cycle and zero wait states. The eZ80F92 Flash Module features the following memory configurations: * * * * On-chip SRAM: 8 KB Off-chip SRAM: 512 KB On-chip Flash: 128 KB Off-chip Flash: 1 MB IrDA Transceiver An onboard IrDA transceiver (ZHX1810) is connected to PD0 (TX), PD1 (RX), and PD2 (Shutdown, R_SD). The IrDA transceiver is of the LED type 870 nm Class 1. The receiver supply current is 90 A to150 A and the transmitter supply current is 260 mA when the LED is active. The IrDA transceiver is accessible via the IrDA controller attached to UART0 on the eZ80F92 device. The UART0 console and the IrDA transceiver cannot be used simultaneously. To use the UART0 for console or to save power, the transceiver can be disabled by the software or by an off-board signal when using the proper jumper selection. The transceiver is disabled by setting PD2 (IR_SD) High or by pulling the DIS_IRDA pin on the I/O connector Low. The shutdown is used for power savings. To enable the IrDA transceiver, DIS_IRDA is left floating and PD2 is set to Low. PS018906-0908 Onboard Component Description eZ80F92 Flash Module Product Specification 15 Reset Generator The onboard Reset Generator Chip performs reliable Power-On Reset (POR). The chip generates a reset pulse with a duration of 200 ms if the power supply drops below 2.93 V. This reset pulse ensures that the board always starts in a defined condition. The RESET pin on the I/O connector reflects the status of the RESET line. It is a bidirectional pin for resetting external peripheral components or for resetting the eZ80F92 Flash Module with a low-impedance output (for example, a 100 push-button). Serial Interface Ports The controller contains two 16550-style UARTs with programmable baud rate generators. UART0 is typically used for console I/O, and initial boot code upload, or to connect remote peripherals that can be controlled and monitored via Ethernet. UART0 is connected to GPIO PD[0:3] on the I/O connector. There are no RS-232 level shifters on the eZ80F92 Flash Module. Note: Do not connect an RS-232 interface without level shifters. UART1 can be used for modem attachment or as a communications port to a host computer, where the embedded Ethernet module emulates an AT-style modem for internet access. UART1 does not offer onboard RS-232 level shifters. PS018906-0908 Onboard Component Description eZ80F92 Flash Module Product Specification 16 Physical Dimensions The size of the eZ80F92 Flash Module PCB is 64 x 64 mm. See Figure 4. 63.5 mm 8.5 mm 8.3 mm max. 1 1 I/O Connector Bus Connector 2.54 mm Top View 64 mm 9 mm 2.7 mm 6.2 mm IrDA 7 mm 55.88 mm Figure 4. Dimension Drawing PS018906-0908 Onboard Component Description eZ80F92 Flash Module Product Specification 17 Figure 5 displays a top view of the eZ80F92 Flash Module. Figure 5. Top Layer Figure 6 displays a bottom view of the eZ80F92 Flash Module. Figure 6. Bottom Layer PS018906-0908 Onboard Component Description eZ80F92 Flash Module Product Specification 18 Mounting the Module onto the eZ80(R) Development Platform The eZ80F92 Flash Module can be mounted in several positions. Depending on volume and area restrictions, it can be mounted horizontally or vertically with or without components between the connectors on the eZ80(R) Development Platform. Figure 7 displays examples. Low Profile Mounting 63.5 mm 1 1 64 mm Bus H = 4.5 mm 1.7 mm I/O 8.3 mm Carrier Board Stacked Mounting 1 64 mm 1 Bus H = 4.5 mm I/O 8.5 mm Modem or Power Supply 50.5 mm max Carrier Board Figure 7. Mounting Examples PS018906-0908 Onboard Component Description eZ80F92 Flash Module Product Specification 19 ESD/EMI Protection Caution: The eZ80F92 Flash Module is a component that is intended to be part of a system design for end-user devices. Therefore, you must take precaution to use ESD protection on the I/O pins. Caution: CMOS I/Os are ESD-sensitive and must be handled with care. Handling of the module should be performed in ESD-safe environments (for example, with a wrist-wrap attached). When developing applications, you must provide for proper ESD protection on external, user-accessible I/Os (for example, suppressor arrays for the I/Os). The components are mounted on a multilayer PCB to provide a stable ground plane for onboard components. The module features several GND pins next to pins with higher switching frequency for short ground returns. If unused, the clock output can be separated from the module header by removing a series resistor on the module. Removing the series resistor further reduces electromagnetic emissions. Absolute Maximum Ratings Stresses greater than those listed in Table 5 can cause permanent damage to the device. These ratings are stress ratings only. Operation of the device at any condition outside those indicated in the operational sections of these specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. For improved reliability, unused inputs should be tied to one of the supply voltages (VDD or VSS). Table 5. Absolute Maximum Ratings Parameter Min Max Units 0 +70 C Storage temperature -45 +85 C Operating Humidity (RH @ 50 C) 25% 90% -- 3.3 Standard operating temperature Operating Voltage (5%) PS018906-0908 V Onboard Component Description eZ80F92 Flash Module Product Specification 20 Power Supply The eZ80F92 Flash Module requires a regulated external 3.3 V DC/0.5 A power supply. You may use a Low Dropout Regulator (LDO) to get 3.3 V from 5 V or use the following switcher circuit to generate 3.3 V from unregulated 10 V to 28 V power supply. Power connections conventional description is provided in the following table: Connection Circuit Device Power VCC VDD Ground GND VSS Figure 8 displays two power supply examples. Switcher 10--28V 3.3V To Module U1 LM2575S-ADJ 10--28V 1 V IN VIN G N D C2 C1 1000uF 100n 3 FB OVOUT N / O F F 4 2 VDD 3.3V L1 330uH/1A R1 5k6 1% D1 1A/30V R2 3k3 1% 5 GND C3 470uF/6.3V Low ESR GND LDO 5V 3.3V 4-6V U1 LM3940 VCC VI C1 100n G N D VDD 3.3V VO C3 Low ESR 470uF/6.3V GND GND Figure 8. Power Supply Examples PS018906-0908 Onboard Component Description eZ80F92 Flash Module Product Specification Schematics 21 Figure 9 through Figure 17 on page 29 displays the layout of the eZ80F92 Flash Module. Ethernet and external Flash circuiting devices are not loaded on the eZ80F92 Flash Module. However, these devices appear in the following schematics for reference. 07 CPU eZ80 ROM -NMI NOR-Flash D[0..7] A[0..23] -RD -WR -CSFLASH -RESFLASH -FLASHWE D[0..7] CLK_OUT A[0..23] RTC_VDD IICSDA IICSCL -RD -WR -IOREQ -MREQ -INSTRD -WAIT -HALT_SLP -WAIT -HALT_SLP -BUSREQ -BUSACK -BUSREQ -BUSACK -NMI -NMI CLK_OUT CLK_OUT RTC_VDD 06 IICSDA IICSCL PB[0..7] PC[0..7] PD[0..7] -CS[0..3] PB[0..7] -RESET -WAIT PC[0..7] PD[0..7] -CS[0..3] PD[0..7] -CS[0..3] JTAG[1..4] TDO 09 05 Power Ethernet CS8900A PowerSupply V3.3 GND V3.3 GND SD[0..7] SA[0..3] IOCHRDY -ETHRD -ETHWR ETHIRQ -SLEEP -ACTIVE SD[0..7] SA[0..3] IRDA_TXD IRDA_RXD IRDA_SD -DIS_FLASH IICSDA IICSCL D[0..7] IRDA_TXD IRDA_RXD IRDA_SD -CSFLASH -WR -RD -DIS_FLASH -CSFLASH -RESFLASH -FLASHWE -IOREQ -MREQ -INSTRD -WAIT -HALT_SLP -BUSREQ -BUSACK CLK_OUT RTC_VDD IICSDA IICSCL D[0..7] A[0..23] A[0..23] -WR -RD -DIS_FLASH -DIS_IRDA -DIS_IRDA -RESFLASH SD[0..7] SA[0..3] JTAG[1..4] TDO Logic -RESET -NMI RTC_VDD CTRL-Logic -RESET -WAIT -FLASHWE -FLASHWE -IOREQ -MREQ -INSTRD -CSFLASH -RESFLASH -RESET -WR -RD -BUSREQ -BUSACK Connector Headers IRDA_TXD IRDA_RXD IRDA_SD -WR -RD -CS1 -IOREQ -MREQ -INSTRD A[0..23] -RD -WR -WAIT -HALT_SLP 04 -RESET IRDA_TXD IRDA_RXD IRDA_SD ETHIRQ -SLEEP -ACTIVE -RESET A[0..23] -RD -WR -RD -WR -CS1 D[0..7] A[0..23] -RESET ETHIRQ -SLEEP -ACTIVE D[0..7] A[0..23] Reset D[0..7] D[0..7] 08 Peripherals A[0..23] SRAM D[0..7] 02 RAM IOCHRDY -ETHRD -ETHWR 03 -DIS_IRDA PB[0..7] PC[0..7] PD[0..7] -CS[0..3] JTAG[1..4] TDO V3.3 GND PB[0..7] PC[0..7] PD[0..7] -CS[0..3] JTAG[1..4] TDO V3.3_EXT GND_EXT IOCHRDY -ETHRD -ETHWR ETHIRQ -SLEEP -ACTIVE Figure 9. eZ80F92 Flash Module Schematics--Top Level PS018906-0908 Schematics eZ80F92 Flash Module Product Specification 22 XIN eZ80=IIC-bus-master -WR -IOREQ -MREQ -INSTRD -WAIT -HALT_SLP -BUSREQ -BUSACK -NMI A[0..23] -CS[0..3] -RESET JTAG[1..4] TDO A6 A7 A8 A9 A10 A11 A12 A13 A14 -RD -WR -IOREQ -MREQ -INSTRD A15 A16 A17 A18 A19 A20 -WAIT -HALT_SLP RTC_VDD PHI SCL SDA VSS VDD PB7/MOSI PB6/MISO PB5/T5_OUT PB4/T4_OUT PB3/SCK PB2/SS PB1/T1_IN PB0/T0_IN VDD XOUT XIN VSS PC7/RI1 PC6/DCD1 PC5/DSR1 PC4/DTR1 PC3/CTS1 PC2/RTS1 PC1/RxD1 PC0/TxD1 A0 A1 A2 A3 A4 A5 VDD VSS A6 A7 A8 A9 A10 A11 A12 A13 A14 VDD VSS A15 A16 A17 A18 A19 A20 U8 eZ80F92 TQFP100 -BUSREQ -BUSACK -NMI PD7/RI0 PD6/DCD0 PD5/DSR0 PD4/DTR0 PD3/CTS0 PD2/RTS0/IR_SD PD1/RxD0/IR_RXD PD0/TxD0/IR_TXD VDD TDO TDI (ZDA) TRIGOUT TCK (ZCL) TMS VSS RTC_VDD RTC_XOUT RTC_XIN VSS VDD HALT_SLP BUSACK BUSREQ NMI RESET PD[0..7] 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 PD7 PD6 PD5 PD4 PD3 PD2 PD1 PD0 V3.3 JTAG[1..4] TDO TDI TRIGOUT TCK TMS A[0..23] A[0..23] -CS[0..3] D1 TMM BA MINIME RTC_VDD RTC_XOUT RTC_XIN -HALT_SLP -BUSACK -BUSREQ -NMI -RESET RTC_VDD C18 100nF R29 GoldC C19 0,1F GOLDC 10k R32 RTC_XIN RTC_XOUT Y3 32.768kHz XTAL3 C24 18pF C20 18pF VDD VSS -CS[0..3] V3.3 V3.3 D[0..7] D[0..7] RTC_VDD R28 100 (= JTAG0) = JTAG1 = JTAG2 = JTAG3 = JTAG4 220 V3.3 D[0..7] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 -IOREQ -MREQ -RD -WR -INSTRD -WAIT -RD A0 A1 A2 A3 A4 A5 D0 D1 D2 D3 D4 D5 D6 D7 -RESET JTAG[1..4] TDO PD[0..7] A21 A22 A23 CS0 CS1 CS2 CS3 VDD VSS D0 D1 D2 D3 D4 D5 D6 D7 VDD VSS IOREQ MREQ RD WR INSTRD WAIT PD[0..7] PC[0..7] C17 20pF C16 20pF 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 PC[0..7] PB[0..7] A21 A22 A23 -CS0 -CS1 -CS2 -CS3 PB[0..7] 100K R27 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 CLK_OUT PC7 PC6 PC5 PC4 PC3 PC2 PC1 PC0 HC49SM CLK_OUT CLK_OUT 20 MHz Y2 XOUT IICSDA IICSCL IICSCL R31 0 PC[0..7] XOUT XIN IICSCL PB[0..7] IICSDA PB7 PB6 PB5 PB4 PB3 PB2 PB1 PB0 IICSDA C21 1nF C22 1nF C23 1nF PLACE CAPS CLOSE TO PINS 97,7,33,43 Figure 10. eZ80F92 Flash Module Schematics--100-Pin QFP eZ80F92 Device PS018906-0908 Schematics eZ80F92 Flash Module Product Specification 23 D[0..7] D[0..7] A19/A20/A21/A22/A23 not used here A[0..23] A[0..23] D0 D1 D2 D3 D4 D5 D6 D7 -CS1 -RD -WR -CS1 -RD -WR A18 A0 A1 A2 A3 -CS1 D0 D1 D2 D3 -WR A12 A9 A6 A4 A17 A0 A1 A2 A3 A4 CE I/O0 I/O1 VDD VSS I/O2 I/O3 WE A5 A6 A7 A8 A9 N.C. A18 A17 A16 A15 OE I/O7 I/O6 VSS VDD I/O5 I/O4 A14 A13 A12 A11 A10 N.C. 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 A16 A15 A14 A13 -RD D7 D6 4.7k D5 D4 A11 A8 A10 A7 A5 512kx8 SRAM SOJ36.400 U2D 9 U1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 RN1 8 74LVC04/SO U2E U2F V3.3 C7 100nF VDD 11 10 13 74LVC04/SO 12 74LVC04/SO VSS GND Figure 11. eZ80F92 Flash Module Schematics--36-Pin SRAM Device PS018906-0908 Schematics eZ80F92 Flash Module Product Specification 24 21 20 19 18 17 16 15 14 8 7 36 6 5 4 3 2 1 40 13 37 Pin37=N.C. for 4MbitFlashes A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 VDD VDD A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 Intel-Type DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 25 26 27 28 32 33 34 35 DFLASH0 DFLASH1 DFLASH2 DFLASH3 DFLASH4 DFLASH5 DFLASH6 DFLASH7 CE OE WE RP WP 22 24 9 10 12 -CSFLASH -RD -WR -RESFLASH -WP VPP N.C. N.C. VSS VSS U3 23 39 A[0..23] 30 31 D[0..7] 11 VPP 29 38 A21 A20 D0 D1 D2 D3 D4 D5 D6 D7 VDD R1 10K U2A 2 1 -FLASHWE 0R R2 A20/A21 used for 16/32Mbit-Flash 74LVC04/SO MT28F008B3VG TSOP40.20MM U3 IS NOT POPULATED D[0..7] = = = = = = = = C8 100nF D[0..7] V3.3 A[0..23] -CSFLASH -RD -WR -RESFLASH -FLASHWE A[0..23] A22/A23 not used here -CSFLASH -RD -WR -RESFLASH VDD VSS GND -FLASHWE Note: Must be pulled 'low' externally for programming. Figure 12. eZ80F92 Flash Module Schematics--NOR Flash Device PS018906-0908 Schematics eZ80F92 Flash Module Product Specification 25 V3.3 VDD R19 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 VSS device addresses: 00300h bis 0030Fh -ETHWR IOCHRDY SD[0..7] SA[0..3] ETHIRQ -SLEEP -ACTIVE TQFP100 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 -ETHRD -ETHWR -ETHWR Y1 20.000 MHz HC49SM SD[0..7] SA[0..3] GND -SLEEP -ACTIVE THT U9 TXDTXD+ RD+ 1 8 TD+ RD- 2 7 TD- 3 6 4 5 LCDA15C-6 SO8.150 -SLEEP int. Pull-Up GND 8R2 R25 RXD- C13 100nF C12 560pF J1 TD+ 8R2 CTD RD- 1 2 3 4 CRD 5 6 8 RD+ C14 100nF JP4 HEADER 1 SIP1 GND TD- R26 100 through hole solder pad L2 VSS ETHIRQ LED ye ESD protection array R24 TXD+ place near J1 VDD yellow 4k99/1% RXD+ V3.3 LD2 R21 220 0603 R23 RXDRXD+ SD[0..7] R34 10k 0603 -LINKLED R20 220 0603 THT TXD- -ETHRD -LANLED LED gn LD1 -LANLED -LINKLED 1 -ETHRD CS8900A-CQ3 LANLED LINKLED/HC0 XTAL2 XTAL1 AVSS AVDD AVSS RES RXDRXD+ AVDD AVSS TXDTXD+ AVSS AVDD DODO+ CICI+ DIDI+ BSTATUS/HC1 SLEEP TEST SD4 SD5 SD6 SD7 SA[0..3] U7 SD0 SD1 SD2 SD3 SA0 SA1 SA2 SA3 SD9 SD8 MEMW MEMR INTRQ2 INTRQ1 INTRQ0 IOCS16 MEMCS16 INTRQ3 SHBE SA0 SA1 SA2 SA3 SA4 SA5 SA6 SA7 SA8 SA9 SA10 SA11 REFRESH SA12 SA13 SA14 SA15 SA16 DVSS DVDD DVSS SA17 SA18 SA19 IOR IOW AEN (TCK) IOCHRDY SD0 SD1 SD2 SD3 DVDD DVSS SD4 SD5 SD6 SD7 RESET ETHIRQ 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 R22 4k7 green SD10 SD11 DVSS DVDD SD12 SD13 SD14 SD15 CSOUT DMACK0 DMARQ0 DMACK1 DMARQ1 DMACK2 DMARQ2 DVSS DVDD DVSS CHIPSEL EEDATAIN EEDATAOUT (TDO) EESK EECS ELCS AVSS GND 90 degree, stacked dual-LED 10k don't stuff C15 100nF 1 2 3 4 5 6 8 HFJ11-1041 HALOFASTJACK TX+ <-> 1 TX- <-> 2 RX+ <-> 3 RX- <-> 6 CASE ferrite tbd don't stuff = -LANLED Figure 13. eZ80F92 Flash Module Schematics--Module PS018906-0908 Schematics eZ80F92 Flash Module Product Specification 26 power supervisor V3.3 GND VDD 3 U4 RESET 1 C9 100nF 0603 R3 2k2 0603 -RESET 2 open-drain -RESET C10 10nF 0603 MAX6328UR29 SOT-23-L3 alternative: Maxim MAX6802UR29D3 IR-transceiver V3.3 R5 68R IRDA_RXD IRDA_SD IRDA_TXD IRDA_RXD IRDA_SD 330nF U5 5 VCC 1 LEDA IRDA_TXD 2 TXD IRDA_SD 4 IRDA_RXD 3 6 V3.3 SD RXD GND VDD T IRDA_TXD R6 2R7, 0.25W 1206 (MMA 020 4) C11 VSS 0 ZHX1810 GND Figure 14. eZ80F92 Flash Module Schematics--IrDA Reset PS018906-0908 Schematics eZ80F92 Flash Module Product Specification 27 A[0..23] D[0..7] -CS[0..3] IICSDA IICSCL CLK_OUT -DIS_FLASH -CS_RAM -DIS_IRDA -FLASHWE RTC_VDD PB[0..7] PC[0..7] PD[0..7] -RESET -RD -WR -IOREQ -MREQ -INSTRD -WAIT -HALT_SLP -BUSREQ -BUSACK -NMI JTAG[1..4] TDO connector 1 A[0..23] A6 A10 GND_EXT A8 A13 A15 A18 A19 A2 A11 A4 A5 FUTURE_USE A21 A22 -CS0 -CS2 D1 D3 D5 D7 -MREQ GND_EXT -WR -BUSACK D[0..7] R7 4k7 -CS[0..3] IICSDA IICSCL R8 4k7 IICSDA IICSCL R9 CLK_OUT EZ80CLK 33 place near eZ80 output (PHI) -DIS_FLASH -CS_RAM JP1 -DIS_IRDA -FLASHWE RTC_VDD PB[0..7] 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 PC[0..7] 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 connector 2 A0 A3 V3.3_EXT A7 A9 A14 A16 GND_EXT A1 A12 A20 A17 -DIS_FLASH V3.3_EXT A23 -CS1 D0 D2 D4 GND_EXT D6 -IOREQ -RD -INSTRD -BUSREQ HEADER 25X2 IDC50 PD[0..7] PB7 PB5 PB3 PB1 GND_EXT PC6 PC4 PC2 PC0 PD6 PD5 PD3 PD1 TDO GND_EXT TCK RTC_VDD IICSCL IICSDA -FLASHWE -CS3 -RESET V3.3_EXT -HALT_SLP V3.3_EXT JP2 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 PB6 PB4 PB2 PB0 PC7 PC5 PC3 PC1 PD7 GND_EXT PD4 PD2 PD0 TDI TRIGOUT TMS EZ80CLK GND_EXT -DIS_IRDA -WAIT GND_EXT -NMI HEADER 25X2 IDC50 -RESET -RD -WR R10 2k2 0603 -IOREQ -MREQ -INSTRD -WAIT -HALT_SLP -WAIT -BUSREQ -BUSACK -BUSREQ -NMI R33 2k2 0603 R11 10k JTAG1 (JTAG0 JTAG2 JTAG3 JTAG4 JTAG[1..4] TDO = =) = = = R12 10k TDI TDO TRIGOUT TCK TMS V3.3 V3.3_EXT GND_EXT V3.3_EXT R13 4k7 GND_EXT GND Figure 15. eZ80F92 Flash Module Schematics--Headers PS018906-0908 Schematics eZ80F92 Flash Module Product Specification 28 V3.3 common power plane V3.3 V3.3 V3.3 C1 47uF TAJC GND GND C2 47uF TAJC C3 1nF C4 100nF C5 1nF C6 100nF GND common ground plane GND no power supply on board! Input: VDD(=V3.3) = 3.3V -5% Power: Pmax = 1.6W Ptyp = 0.4W Current: Imax = 200mA (IrDA not in use) Imax = 460mA (IrDA in use) Ityp = 100mA for test purposes JP3 1 2 HEADER 2 SIP2 PCB1 don't stuff E-NET Module Rev.B 98Cxxxx-xxx Figure 16. eZ80F92 Flash Module Schematics--Power Supply PS018906-0908 Schematics eZ80F92 Flash Module Product Specification 29 D[0..7] A[0..23] PD[0..7] -RESET -WAIT D[0..7] = D[0..7] A[0..23] only A0,A1,A2,A3 are used here PD[0..7] PD3 and PD5 not used here A[0..23] A0 A1 A2 A3 -WR SA[0..3] SA[0..3] SA0 SA1 SA2 SA3 -ETHRD -ETHWR = PD4 -WAIT U2D -RD 12 -CS3 = -RD 11 -ETHRD -WR 0R -SLEEP PD6 R15 0R -ACTIVE -WAIT 3 R35 -DIS_FLASH 4 -DIS_IRDA 4 -CS0 5 6 DISABLE_IRDA PD2 = IR_SD 74LCX04 TSSOP14 -SLEEP -ACTIVE IOCHRDY -ETHWR PD0 = IRDA_TXD PD1 = IRDA_RXD IRDA_TXD IRDA_RXD IRDA_SD 6 -CSFLASH -RESET = -RESFLASH -RESFLASH 74LCX32 TSSOP14 U2C 5 ETHIRQ U6B DISABLE_FLASH 74LCX04 TSSOP14 R17 10k 0603 -ETHWR 74LCX32 TSSOP14 U2B 3 -ETHRD 0 IRDA_SD R30 10k 0603 SA[0..3] 2 -CS1 and-CS2 not used here -CS[0..3] R14 SD[0..7] don't stuff U6A 1 ETHIRQ PD7 74LCX32 TSSOP14 -CSETH -WR -CS[0..3] SD[0..7] -RESET 13 -RD = = = = SD[0..7] -CSFLASH U6D 12 11 13 -CSFLASH IRDA_SD 74LCX32 TSSOP14 V3.3 VDD -DIS_FLASH -DIS_IRDA -DIS_FLASH VSS -DIS_IRDA GND Figure 17. eZ80F92 Flash Module Schematics--Control Logic PS018906-0908 Schematics eZ80F92 Flash Module Product Specification 30 Customer Support For answers to technical questions about the product, documentation, or any other issues with Zilog's offerings, please visit Zilog's Knowledge Base at http://www.zilog.com/kb. For any comments, detail technical questions, or reporting problems, please visit Zilog's Technical Support at http://support.zilog.com. PS018906-0908 Customer Support