Product Folder Order Now Technical Documents Tools & Software Support & Community SN65DSI83 SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 SN65DSI83 MIPI(R) DSI Bridge to FlatLinkTM LVDS Single-Channel DSI to Single-Link LVDS Bridge 1 Features * 1 * * * * * * * * * * * * * (R) Implements MIPI D-PHY Version 1.00.00 Physical Layer Front-End and Display Serial Interface (DSI) Version 1.02.00 Single Channel DSI Receiver Configurable for 1, 2, 3, or 4 D-PHY Data Lanes Per Channel Operating up to 1 Gbps/Lane Supports 18 bpp and 24 bpp DSI Video Packets With RGB666 and RGB888 Formats Max Resolution up to 60 fps WUXGA 1920 x 1200 at 18 bpp and 24 bpp Color With Reduced Blanking. Suitable for 60 fps 1366 x 768 / 1280 x 800 at 18 bpp and 24 bpp FlatLinkTM Output for Single-Link LVDS Supports Single Channel DSI to Single-Link LVDS Operating Mode LVDS Output Clock Range of 25 MHz to 154 MHz LVDS Pixel Clock May be Sourced from FreeRunning Continuous D-PHY Clock or External Reference Clock (REFCLK) 1.8-V Main VCC Power Supply Low Power Features Include Shutdown Mode, Reduced LVDS Output Voltage Swing, Common Mode, and MIPI Ultra-Low Power State (ULPS) Support LVDS Channel SWAP, LVDS PIN Order Reverse Feature for Ease of PCB Routing ESD Rating 2 kV (HBM) Packaged in 64-pin 5-mm x 5-mm BGA MICROSTAR JUNIOR (ZQE) Temperature Range: -40C to 85C The SN65DSI83 device can support up to WUXGA 1920 x 1200 at 60 frames per second, at 24 bpp with reduced blanking. The SN65DSI83 device is also suitable for applications using 60 fps 1366 x 768 / 1280 x 800 at 18 bpp and 24 bpp. Partial line buffering is implemented to accommodate the data stream mismatch between the DSI and LVDS interfaces. Designed with industry-compliant interface technology, the SN65DSI83 device is compatible with a wide range of microprocessors, and is designed with a range of power management features including low-swing LVDS outputs, and the MIPI defined ultralow power state (ULPS) support. The SN65DSI83 device is implemented in a small outline 5-mm x 5-mm BGA MICROSTAR JUNIOR at 0.5-mm pitch package, and operates across a temperature range from -40C to 85C. Device Information(1) PART NUMBER PACKAGE BODY SIZE SN65DSI83 BGA MICROSTAR JUNIOR (64) 5.00 mm x 5.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Typical Application 2 Applications * * Tablet PC, Notebook PC, Netbooks Mobile Internet Devices 3 Description The SN65DSI83 DSI to FlatLink bridge device features a single-channel MIPI D-PHY receiver frontend configuration with four lanes per channel operating at 1 Gbps per lane; a maximum input bandwidth of 4 Gbps. The bridge decodes MIPI DSI 18 bpp RGB666 and 24 bpp RGB888 packets and converts the formatted video data stream to a FlatLink-compatible LVDS output operating at pixel clocks operating from 25 MHz to 154 MHz, offering a Single-Link LVDS with four data lanes per link. 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. SN65DSI83 SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 www.ti.com Table of Contents 1 2 3 4 5 6 7 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Pin Configuration and Functions ......................... Specifications......................................................... 1 1 1 2 4 6 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6 6 6 6 7 8 9 Absolute Maximum Ratings ...................................... ESD Ratings.............................................................. Recommended Operating Conditions....................... Thermal Information .................................................. Electrical Characteristics........................................... Timing Requirements ................................................ Switching Characteristics .......................................... Detailed Description ............................................ 12 7.1 7.2 7.3 7.4 Overview ................................................................. Functional Block Diagram ....................................... Feature Description................................................. Device Functional Modes........................................ 12 12 13 14 7.5 Programming........................................................... 21 7.6 Register Maps ......................................................... 23 8 Application and Implementation ........................ 29 8.1 Application Information............................................ 29 8.2 Typical Application .................................................. 30 9 Power Supply Recommendations...................... 34 9.1 VCC Power Supply................................................... 34 9.2 VCORE Power Supply ........................................... 34 10 Layout................................................................... 35 10.1 Layout Guidelines ................................................. 35 10.2 Layout Example .................................................... 36 11 Device and Documentation Support ................. 37 11.1 11.2 11.3 11.4 11.5 Receiving Notification of Documentation Updates Community Resources.......................................... Trademarks ........................................................... Electrostatic Discharge Caution ............................ Glossary ................................................................ 37 37 37 37 37 12 Mechanical, Packaging, and Orderable Information ........................................................... 37 4 Revision History Changes from Revision G (June 2015) to Revision H Page * Deleted figure RESET and Initialization Timing Definition While VCC is High ...................................................................... 11 * Changed the paragraph following Figure 8 ......................................................................................................................... 14 * Changed Recommended Initialization Sequence To: Initialization Sequence ..................................................................... 15 * Changed Table 2 .................................................................................................................................................................. 15 * Changed item 3 in Video Stop and Restart Sequence From: Drive all DSI input lanes including DSI CLK lane to LP11. To: Drive all DSI data lanes to LP11, but keep the DSI CLK lanes in HS. ............................................................... 29 Changes from Revision F (May 2015) to Revision G Page * Moved Recommended Initialization Setup Sequence .......................................................................................................... 15 * Changed SN65DSI83 DSI Lane Merging Illustration back to original image ....................................................................... 18 Changes from Revision E (October 2013) to Revision F Page * Added Pin Configuration and Functions section, ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section .............................. 1 * Updated data sheet to new TI standards, added sections, and rearranged content ............................................................ 1 * Updated the SN65DSI83 FlatLink Timing Definitions diagram............................................................................................. 11 * Changed Functional Block Diagram ..................................................................................................................................... 12 * Changed SN65DSI83 DSI Lane Merging Illustration ........................................................................................................... 18 * Changed from: 1366 x 768 WXGA to:1280 x 800 WXGA .................................................................................................. 30 * Changed Design Parameters table values ........................................................................................................................... 30 * Changed Detailed Design Procedure values and text.......................................................................................................... 31 * Changed Example Script subsection ................................................................................................................................... 33 2 Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 SN65DSI83 www.ti.com SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 Changes from Revision D (December 2012) to Revision E * Page Changed status from Product Preview to Production Data .................................................................................................... 1 Changes from Revision A (September 2012) to Revision B Page * Changed the value of VOH From: 1.3 MIN To: 1.25 MIN ........................................................................................................ 7 * Changed the ICC TYP value From: TBD To: 77 and MAX value From: TBD To: 112 ........................................................... 7 * Added a TYP value of 7.7 to IULPS .......................................................................................................................................... 7 * Changed the IRST TYP value From: 0.05 To: 0.04 and MAX value From: 0.2 To: 0.06 ......................................................... 7 * Added table note 2 ................................................................................................................................................................. 7 * changed the values of |VOD|.................................................................................................................................................. 8 * Changed the values of VOC(SS) for test conditions CSR 0x19.6 = 0 ....................................................................................... 8 * Added table note 3 ................................................................................................................................................................. 8 * Changed the tsetup and thold NOM value of 1.5 to a MIN value of 1.5...................................................................................... 8 * Changed the SWITCHING CHARACTERISTICS table.......................................................................................................... 9 * Changed the description of CHA_LVDS_VOD_SWING....................................................................................................... 25 Changes from Original (August 2012) to Revision A Page * Changed Feature From: Max Resolution up to 60 fps WUXGA 1920 x 1200 at 18 and 24 bpp Color with Reduced Blanking. Suitable for 60 fps 1366 x 768 at 18 and 24 bpp To: Max Resolution up to 60 fps WUXGA 1920 x 1200 at 18 and 24 bpp Color with Reduced Blanking. Suitable for 60 fps 1366 x 768 / 1280 x 800 at 18 and 24 bpp..................... 1 * Changed text in paragraph two of the Description From: "applications using 60 fps 1366 x 768 at 18 bpp and 24 bpp." To: "applications using 60 fps 1366 x 768 / 1280 x 800 at 18 bpp and 24 bpp."......................................................... 1 Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 3 SN65DSI83 SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 www.ti.com 5 Pin Configuration and Functions ZQE Package 64-Pin BGA MICROSTAR JUNIOR (Top View) A B C D E F G H J 9 VCC GND A_Y0N A_Y1N A_Y2N A_CLKN A_Y3N GND IRQ 8 GND VCC A_Y0P A_Y1P A_Y2P A_CLKP A_Y3P RSVD1 VCORE 7 NC NC DA3P DA3N 6 NC NC VCC VCC VCC DA2P DA2N 5 NC NC GND VCC GND DACP DACN 4 NC NC GND GND DA1P DA1N 3 NC NC DA0P DA0N 2 GND RSVD2 NC NC NC NC NC REFCLK VCC 1 ADDR EN NC NC NC NC NC SCL SDA Not to scale Pin Functions PIN NAME NO. A_CLKN F9 A_CLKP F8 ADDR A1 A_Y0N C9 A_Y0P C8 A_Y1N D9 A_Y1P D8 A_Y2N E9 A_Y2P E8 A_Y3N G9 A_Y3P G8 4 I/O DESCRIPTION LVDS output CMOS I/O FlatLink Channel A LVDS clock Local I2C Interface Target Address Select. See Table 3. In normal operation, this pin is an input. When the ADDR pin is programmed high, it must be tied to the same 1.8-V power rails where the SN65DSI83 VCC 1.8-V power rail is connected. FlatLink Channel A LVDS data output 0 FlatLink Channel A LVDS data output 1 LVDS output FlatLink Channel A LVDS data output 2 FlatLink Channel A LVDS data output 3. A_Y3P and A_Y3N shall be left NC for 18 bpp panels Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 SN65DSI83 www.ti.com SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 Pin Functions (continued) PIN NAME NO. DA0N J3 DA0P H3 DA1N J4 DA1P H4 DA2N J6 DA2P H6 DA3N J7 DA3P H7 I/O DESCRIPTION MIPI D-PHY Channel A Data Lane 0; data rate up to 1 Gbps MIPI D-PHY Channel A Data Lane 1; data rate up to 1 Gbps LVDS Input (HS) CMOS Input (LS) (failsafe) MIPI D-PHY Channel A Data Lane 2; data rate up to 1 Gbps MIPI D-PHY Channel A Data Lane 3; data rate up to 1 Gbps DACN J5 DACP H5 EN B1 CMOS Input with pullup (failsafe) A2, A8, B9, D5, E4, F4, F5, H9 Power Supply Reference ground IRQ J9 CMOS Output Interrupt signal NC B3, A3, B4, A4, B5, A5, B6, A6, B7, A7, C2, C1, D2, D1, F2, F1, G2, G1, E2, E1 No connects These pins must not be connected to any signal, power or ground. REFCLK H2 CMOS Input (Failsafe) Optional external reference clock for LVDS pixel clock. If an external reference clock is not used, this pin must be pulled to GND with an external resistor. The source of the reference clock must be placed as close as possible with a series resistor near the source to reduce EMI. RSVD1 H8 CMOS Input/Output with pulldown Reserved. This pin must be left unconnected for normal operation. RSVD2 B2 CMOS Input with pulldown Reserved. This pin must be left unconnected for normal operation. SCL H1 CMOS Input (Failsafe) SDA J1 Open Drain I/O (failsafe) VCC A9, B8, D6, E5, E6, F6, J2 GND VCORE MIPI D-PHY Channel A Clock Lane; operates up to 500 MHz Power Supply J8 Chip enable and reset. Device is reset (shutdown) when EN is low. Local I2C interface clock Local I2C interface bidirectional data signal 1.8-V power supply 1.1-V output from voltage regulator. This pin must have a 1-F external capacitor to GND. Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 5 SN65DSI83 SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 www.ti.com 6 Specifications 6.1 Absolute Maximum Ratings (1) over operating free-air temperature (unless otherwise noted) MIN MAX UNIT -0.3 2.175 V CMOS input pins -0.5 2.175 V DSI input pins (DA x P/N, DB x P/N) -0.4 1.4 V -65 105 C Supply voltage, VCC Input voltage Storage temperature, Tstg (1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 6.2 ESD Ratings VALUE V(ESD) (1) (2) Electrostatic discharge Human body model (HBM), per ANSI/ESDA/JEDEC JS-001 (1) 2000 Charged-device model (CDM), per JEDEC specification JESD22C101 (2) 500 UNIT V JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. 6.3 Recommended Operating Conditions over operating free-air temperature range (unless otherwise noted) VCC VCC power supply VPSN Supply noise on any VCC pin TA Operating free-air temperature TCASE Case temperature VDSI_PIN DSI input pin voltage range ZL LVDS output differential impedance MIN NOM MAX UNIT 1.65 1.8 1.95 V 0.05 V f(noise) > 1 MHz -40 85 92.2 C -50 1350 mV 90 132 6.4 Thermal Information SN65DSI83 THERMAL METRIC (1) ZQE (BGA MICROSTAR JUNIOR) UNIT 64 PINS RJA Junction-to-ambient thermal resistance 72.1 RJC(top) Junction-to-case (top) thermal resistance 35.7 RJB Junction-to-board thermal resistance 35.2 JT Junction-to-top characterization parameter 1.2 JB Junction-to-board characterization parameter 36.1 (1) 6 C/W For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report. Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 SN65DSI83 www.ti.com SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 6.5 Electrical Characteristics over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP (1) MAX VIL Low-level control signal input voltage VIH High-level control signal input voltage VOH High-level output voltage IOH = -4 mA VOL Low-level output voltage IOL = 4 mA 0.4 ILKG Input failsafe leakage current VCC = 0; VCC(PIN) = 1.8 V 30 IIH High-level input current IIL Low-level input current Any input pin 30 IOZ High-impedance output current Any output pin 10 IOS Short-circuit output current Any output driving GND short ICC Device active current See IULPS Device standby current All data and clock lanes are in ultra-low power state (ULPS) IRST Shutdown current EN = 0 REN EN control input resistor UNIT 0.3 x VCC 0.7 x VCC V 1.25 20 (2) 77 112 7.7 10 0.04 0.06 200 A mA mA k MIPI DSI INTERFACE VIH-LP LP receiver input high threshold VIL-LP LP receiver input low threshold |VID| HS differential input voltage |VIDT| HS differential input voltage threshold VIL-ULPS LP receiver input low threshold; ultra-low power state (ULPS) VCM-HS HS common mode voltage; steady-state VCM-HS HS common mode peak-to-peak variation including symbol delta and interference VIH-HS HS single-ended input high voltage VIL-HS HS single-ended input low voltage VTERM-EN HS termination enable; single-ended input Termination is switched simultaneous for voltage (both Dp and Dn apply to enable) Dn and Dp RDIFF-HS HS mode differential input impedance (1) (2) See Figure 2 880 550 70 270 50 300 70 330 mV 100 See Figure 2 460 -40 450 80 125 All typical values are at VCC = 1.8 V and TA = 25C. SN65DSI83: SINGLE Channel DSI to SINGLE Channel DSI, 1280 x 800 (a) Number of LVDS lanes = 3 data lanes + 1 CLK lane (b) Number of DSI lanes = 4 data lanes + 1 CLK lane (c) LVDS CLK OUT = 83 M (d) DSI CLK = 500 M (e) RGB888, LVDS 18 bpp Maximum values are at VCC = 1.95 V and TA = 85C Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 7 SN65DSI83 SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 www.ti.com Electrical Characteristics (continued) over operating free-air temperature range (unless otherwise noted) MIN TYP (1) MAX CSR 0x19.3:2 = 00 100- near-end termination 180 245 313 CSR 0x19.3:2 = 01 100- near-end termination 215 293 372 CSR 0x19.3:2 = 10 100- near-end termination 250 341 430 CSR 0x19.3:2 = 11 100- near-end termination 290 389 488 CSR 0x19.3:2 = 00 200- near-end termination 150 204 261 CSR 0x19.3:2 = 01 200- near-end termination 200 271 346 CSR 0x19.3:2 = 10 200- near-end termination 250 337 428 CSR 0x19.3:2 = 11 200- near-end termination 300 402 511 CSR 0x19.3:2 = 00 100- near-end termination 140 191 244 CSR 0x19.3:2 = 01 100- near-end termination 168 229 290 CSR 0x19.3:2 = 01 100- near-end termination 195 266 335 CSR 0x19.3:2 = 11 100- near-end termination 226 303 381 CSR 0x19.3:2 = 00 200- near-end termination 117 159 204 CSR 0x19.3:2 = 01 200- near-end termination 156 211 270 CSR 0x19.3:2 = 10 200- near-end termination 195 263 334 CSR 0x19.3:2 = 11 200- near-end termination 234 314 399 PARAMETER TEST CONDITIONS UNIT FlatLink LVDS OUTPUT Steady-state differential output voltage for A_Y x P/N and B_Y x P/N |VOD| Steady-state differential output voltage for A_CLKP/N and B_CLKP/N |VOD| Change in steady-state differential output voltage between opposite binary states VOC(SS) Steady state common-mode output voltage (3) VOC(PP) Peak-to-peak common-mode output voltage RLVDS_DIS Pulldown resistance for disabled LVDS outputs (3) mV mV RL = 100 35 CSR 0x19.6 = 1 and CSR 0x1B.6 = 1 (see Figure 3) CSR 0x19.6 = 0 (see Figure 3) 0.8 0.9 1 1.15 1.25 1.35 See Figure 3 35 1 mV V mV k Tested at VCC = 1.8 V , TA = -40C for MIN, TA = 25C for TYP, TA = 85C for max. 6.6 Timing Requirements MIN 2 f(I2C) Local I C input frequency fHS_CLK DSI HS clock input frequency tsetup DSI HS data to clock setup time 0.15 thold DSI HS data to clock hold time; see Figure 1 0.15 (1) 8 40 TYP MAX UNIT 400 kHz 500 MHz UI (1) The unit interval (UI) is one half of the period of the HS clock; at 500 MHz the minimum setup and hold time is 150 ps. Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 SN65DSI83 www.ti.com SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 6.7 Switching Characteristics over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP (1) MAX UNIT 300 ps 40 ns DSI tGS DSI LP glitch suppression pulse width LVDS tc Output clock period tw High-level output clock (CLK) pulse duration 6.49 t0 st 4 / 7 tc Delay time, CLK to 1 serial bit position nd ns -0.15 0.15 ns t1 Delay time, CLK to 2 serial bit position 1 / 7 tc - 0.15 1 / 7 tc + 0.15 ns t2 Delay time, CLK to 3rd serial bit position 2 / 7 tc - 0.15 2 / 7 tc + 0.15 ns t3 Delay time, CLK to 4th serial bit position 3 / 7 tc - 0.15 3 / 7 tc + 0.15 ns tc = 6.49 ns; Input clock jitter < 25 ps (REFCLK) th t4 Delay time, CLK to 5 serial bit position 4 / 7 tc - 0.15 4 / 7 tc + 0.15 ns t5 Delay time, CLK to 6th serial bit position 5 / 7 tc - 0.15 5 / 7 tc + 0.15 ns t6 Delay time, CLK to 7th serial bit position 6 / 7 tc - 0.15 6 / 7 tc + 0.15 ns tr Differential output rise time tf Differential output fall time 180 500 ps See Figure 4 EN, ULPS, RESET ten Enable time from EN or ULPS tdis Disable time to standby 1 treset Reset Time 10 FREFCLK REFCLK freqeuncy. Supported frequencies: 25 MHz to 154 MHz 25 154 tr, tf REFCLK rise and fall time 100 ps 1 ns s tpj REFCLK peak-to-peak phase jitter 50 ps Duty REFCLK duty cycle tc(o) = 12.9 ns 0.1 ms ms REFCLK 40% 50% 60% 0.5% 1% 2% MHz REFCLK or DSI CLK (DACP/N, DBCP/N) SSC_CLKIN (1) (2) SSC enabled input CLK center spread depth (2) Modulation frequency range 30 60 kHz All typical values are at VCC = 1.8 V and TA = 25C For EMI reduction purpose, the SN65DSI83 device supports the center spreading of the LVDS CLK output through the REFCLK or DSI CLK input. The center spread CLK input to the REFCLK or DSI CLK is passed through to the LVDS CLK output A_CLKP and A_CLKN, or B_CLKP and B_CLKN, or both. Figure 1. DSI HS Mode Receiver Timing Definitions Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 9 SN65DSI83 SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 www.ti.com 1.3V LP-RX Input HIGH VIH-LP VIL-LP VIH-HS VID LP-RX Input LOW VCM-HS(MAX) HS-RX Common Mode Range VCM-HS(MIN) GND VIL-HS High Speed (HS) Mode Receiver Low Power (LP) Mode Receiver Figure 2. DSI Receiver Voltage Definitions 49.9 ? 1% (2 PLCS) A_YnP VOD VOC A_YnN 100 % 80% VOD(H) 0V VOD(L) 20% 0% tf tr VOC(PP) VOC(SS) VOC(SS) 0V Figure 3. Test Load and Voltage Definitions for FlatLink Outputs 10 Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 SN65DSI83 www.ti.com SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 CLK t6 t5 t4 t3 t2 t1 t0 Yn VOD(H) 0.00V VOD(L) t0-6 Figure 4. SN65DSI83 FlatLink Timing Definitions ULPS (LP00 State) DSI lane ten tdis A_CLKP/N (LVDS_CHA_CLK) A. See ULPS for the ULPS entry and exit sequence. B. ULPS entry and exit protocol and timing requirements must be met per MIPI DPHY specification. Figure 5. ULPS Timing Definition Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 11 SN65DSI83 SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 www.ti.com 7 Detailed Description 7.1 Overview The SN65DSI83 DSI to FlatLink bridge device features a single-channel MIPI(R) D-PHY receiver front-end configuration with four lanes per channel operating at 1 Gbps per lane; a maximum input bandwidth of 4 Gbps. The bridge decodes MIPI DSI 18 bpp RGB666 and 24 bpp RGB888 packets and converts the formatted video data stream to a FlatLink compatible LVDS output operating at pixel clocks operating from 25 MHz to 154 MHz, offering a Single-Link LVDS with four data lanes per link. 7.2 Functional Block Diagram AVCC ERR AGND VCC GND ULPS LPRX DA0P DA0N LANE ERR MERGE 8 18 HSRX 18 DATA LANE 0 LVDS SERIALIZER EOT DA1P DA1N DA2P DA2N DA3P DA3N DATA LANE 1 (Circuit same as DATA LANE 0) 8 DATA LANE 2 (Circuit same as DATA LANE 0) 8 DATA LANE 3 (Circuit same as DATA LANE 0) 8 DACN 32 DSI PACKET PROCESSORS DE VS HS CHANNEL FORMATTER ULPS ULPS DACP SOT A_Y0P A_Y0N A_Y1P A_Y1N A_Y2P A_Y2N A_CLKP A_CLKN A_Y3P A_Y3N PARTIAL LPRX LPRX HSRX HSRX LVDSPLL PLL Lock CLOCK CIRCUITS PIXEL CLOCK CLK LANE PLL Lock Logic Clocks SCL CSR 2 HS Clock Sourced M /N Pixel Clock PLL LOCAL I2C CSR READ CSR WRITE SDA IRQ ADDR Clock Dividers Reset SN65DSI83 12 Submit Documentation Feedback REFCLK EN RSVD1 RSVD2 Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 SN65DSI83 www.ti.com SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 7.3 Feature Description 7.3.1 Clock Configurations and Multipliers The FlatLink LVDS clock may be derived from the DSI channel A clock, or from an external reference clock source. When the MIPI D-PHY channel A HS clock is used as the LVDS clock source, the D-PHY clock lane must operate in HS free-running (continuous) mode. This feature eliminates the need for an external reference clock reducing system costs The reference clock source is selected by HS_CLK_SRC (CSR 0x0A.0) programmed through the local I2C interface. If an external reference clock is selected, it is multiplied by the factor in REFCLK_MULTIPLIER (CSR 0x0B.1:0) to generate the FlatLink LVDS output clock. When an external reference clock is selected, it must be between 25 MHz and 154 MHz. If the DSI channel A clock is selected, it is divided by the factor in DSI_CLK_DIVIDER (CSR 0x0B.7:3) to generate the FlatLink LVDS output clock. Additionally, LVDS_CLK_RANGE (CSR 0x0A.3:1) and CH_DSI_CLK_RANGE(CSR 0x12) must be set to the frequency range of the FlatLink LVDS output clock and DSI Channel A input clock respectively for the internal PLL to operate correctly. After these settings are programmed, PLL_EN (CSR 0x0D.0) must be set to enable the internal PLL. 7.3.2 ULPS The SN65DSI83 device supports the MIPI defined ULPS. While the device is in the ULPS, the CSR registers are accessible via I2C interface. ULPS sequence must be issued to all active DSI CLK and, or DSI data lanes of the enabled DSI channels for the SN65DSI83 device to enter the ULPS. The following sequence must be followed to enter and exit the ULPS. 1. The host issues a ULPS entry sequence to all DSI CLK and data lanes enabled. 2. When the host is ready to exit the ULPS mode, the host issues a ULPS exit sequence to all DSI CLK and data lanes that need to be active in normal operation. 3. Wait for the PLL_LOCK bit (CSR 0x0A.7) to be set. 4. Set the SOFT_RESET bit (CSR 0x09.0). 5. Device resumes normal operation (that is, video streaming resumes on the panel). 7.3.3 LVDS Pattern Generation The SN65DSI83 device supports a pattern generation feature on LVDS channels. This feature can be used to test the LVDS output path and LVDS panels in a system platform. The pattern generation feature can be enabled by setting the CHA_TEST_PATTERN bit at address 0x3C. No DSI data is received while the pattern generation feature is enabled. There are three modes available for LVDS test pattern generation. The mode of test pattern generation is determined by register configuration, as shown in Table 1. Table 1. Video Registers ADDRESS BIT REGISTER NAME 0x20.7:0 CHA_ACTIVE_LINE_LENGTH_LOW 0x21.3:0 CHA_ACTIVE_LINE_LENGTH_HIGH 0x24.7:0 CHA_VERTICAL_DISPLAY_SIZE_LOW 0x25.3:0 CHA_VERTICAL_DISPLAY_SIZE_HIGH 0x2C.7:0 CHA_HSYNC_PULSE_WIDTH_LOW 0x2D.1:0 CHA_HSYNC_PULSE_WIDTH_HIGH 0x30.7:0 CHA_VSYNC_PULSE_WIDTH_LOW 0x31.1:0 CHA_VSYNC_PULSE_WIDTH_HIGH 0x34.7:0 CHA_HORIZONTAL_BACK_PORCH 0x36.7:0 CHA_VERTICAL_BACK_PORCH 0x38.7:0 CHA_HORIZONTAL_FRONT_PORCH 0x3A.7:0 CHA_VERTICAL_FRONT_PORCH Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 13 SN65DSI83 SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 www.ti.com 7.4 Device Functional Modes 7.4.1 Reset Implementation When EN is deasserted (low), the SN65DSI83 device is in shutdown or reset state. In this state, CMOS inputs are ignored, the MIPI D-PHY inputs are disabled and outputs are high impedance. It is critical to transition the EN input from a low level to a high level after the VCC supply has reached the minimum operating voltage, as shown in Figure 6. This is achieved by a control signal to the EN input, or by an external capacitor connected between EN and GND. VCC 1.65V EN tVCC ten Figure 6. Cold Start VCC Ramp up to EN When implementing the external capacitor, the size of the external capacitor depends on the power-up ramp of the VCC supply, where a slower ramp-up results in a larger value external capacitor. See the latest reference schematic for the SN65DSI83 device and, or consider approximately 200-nF capacitor as a reasonable first estimate for the size of the external capacitor. Both EN implementations are shown in Figure 7 and Figure 8. VCC GPO EN C EN REN =200 k C controller SN65DSI83 SN65DSI83 Figure 7. External Capacitor Controlled EN Figure 8. EN Input from Active Controller When the SN65DSI83 is reset while VCC is high, the EN pin must be held low for at least 10 ms before being asserted high as described in Table 2 to be sure that the device is properly reset. The DSI CLK lane MUST be in HS and the DSI data lanes MUST be driven to LP11 while the device is in reset before the EN pin is asserted per the timing described in Table 2. 14 Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 SN65DSI83 www.ti.com SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 Device Functional Modes (continued) 7.4.2 Initialization Sequence Use the following initialization sequence to setup the SN65DSI83. This sequence is required for proper operation of the device. Steps 9 through 11 in the sequence are optional. Table 2. Initialization Sequence INITIALIZATION SEQUENCE NUMBER INITIALIZATION SEQUENCE DESCRIPTION Init seq 1 Power on Init seq 2 After power is applied and stable, the DSI CLK lanes MUST be in HS state and the DSI data lanes MUST be driven to LP11 state Init seq 3 Set EN pin to Low Wait 10 ms (1) Init seq 4 Tie EN pin to High Wait 10 ms (1) Init seq 5 Initialize all CSR registers to their appropriate values based on the implementation (The SN65DSI8x is not functional until the CSR registers are initialized) Init seq 6 Set the PLL_EN bit (CSR 0x0D.0) Wait 10 ms (1) Init seq 7 Set the SOFT_RESET bit (CSR 0x09.0) Wait 10 ms (1) Init seq 8 Wait 5 ms Change DSI data lanes to HS state and start DSI video stream (1) Init seq 9 Read back all resisters and confirm they were correctly written Init seq 10 Wait 1 ms Init seq 11 (1) Write 0xFF to CSR 0xE5 to clear the error registers (1) Read CSR 0xE5. If CSR 0xE5!= 0x00, then go back to step #2 and re-initialize Minimum recommended delay. It is fine to exceed these. 7.4.3 LVDS Output Formats The SN65DSI83 device processes DSI packets and produces video data driven to the FlatLink LVDS interface in an industry standard format. Single-Link LVDS is supported by the SN65DSI83 device. During conditions such as the default condition, and some video synchronization periods, where no video stream data is passing from the DSI input to the LVDS output, the SN65DSI83 device transmits zero value pixel data on the LVDS outputs while maintaining transmission of the vertical sync and horizontal sync status. Figure 9 illustrates a Single-Link LVDS 18 bpp application. Figure 10 illustrates a Single-Link 24 bpp application using Format 2, controlled by CHA_24BPP_FORMAT1 (CSR 0x18.1). In data Format 2, the two MSB per color are transferred on the Y3P/N LVDS lane. Figure 11 illustrates a 24 bpp Single-Link application using Format 1. In data Format 1, the two LSB per color are transferred on the Y3P/N LVDS lane. Figure 12 illustrates a Single-Link LVDS application where 24 bpp data is received from DSI and converted to 18 bpp data for transmission to an 18 bpp panel. This application is configured by setting CHA_24BPP_FORMAT1 (CSR 0x18.1) to 1 and CHA_24BPP_MODE (CSR 0x18.3) to 0. In this configuration, the SN65DSI83 device does not transmit the 2 LSB per color since the Y3P and Y3N LVDS lane is disabled. NOTE Figure 9, Figure 10, Figure 11, and Figure 12 only illustrate a few example applications for the SN65DSI83 device. Other applications are also supported. Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 15 SN65DSI83 SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 www.ti.com A_CLKP/N cycle `n-1' cycle `n' A_Y0P/N G0 R5 R4 R3 R2 R1 R0 A_Y1P/N B1 B0 G5 G4 G3 G2 G1 A_Y2P/N DE VS HS B5 B4 B3 B2 A_Y3P/N DE = Data Enable; A_Y3P/N are Output Low Figure 9. FlatLink Output Data; Single-Link 18 bpp A_CLKP/N cycle `n-1' cycle `n' A_Y0P/N G0 R5 R4 R3 R2 R1 R0 A_Y1P/N B1 B0 G5 G4 G3 G2 G1 A_Y2P/N DE VS HS B5 B4 B3 B2 A_Y3P/N 0 B7 B6 G7 G6 R7 R6 DE = Data Enable Figure 10. FlatLink Output Data (Format 2); Single-Link 24 bpp A_CLKP/N cycle `n-1' cycle `n' A_Y0P/N G2 R7 R6 R5 R4 R3 R2 A_Y1P/N B3 B2 G7 G6 G5 G4 G3 A_Y2P/N DE VS HS B7 B6 B5 B4 A_Y3P/N 0 B1 B0 G1 G0 R1 R0 DE = Data Enable Figure 11. FlatLink Output Data (Format 1); Single-Link 24 bpp 16 Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 SN65DSI83 www.ti.com SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 A_CLKP/N cycle `n-1' cycle `n' A_Y0P/N G2 R7 R6 R5 R4 R3 R2 A_Y1P/N B3 B2 G7 G6 G5 G4 G3 A_Y2P/N DE VS HS B7 B6 B5 B4 A_Y3P/N DE = Data Enable; A_Y3P and A_Y3N are output low; A_Y3P and A_Y3N are output low Figure 12. FlatLink Output Data (Format 1); 24 bpp to Single-Link 18 bpp Conversion Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 17 SN65DSI83 SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 www.ti.com 7.4.4 DSI Lane Merging The SN65DSI83 device supports four DSI data lanes, and may be configured to support 1, 2, or 3 DSI data lanes per channel. Unused DSI input pins on the SN65DSI83 device must be left unconnected or driven to LP11 state. The bytes received from the data lanes are merged in HS mode to form packets that carry the video stream. DSI data lanes are bit and byte aligned. Figure 13 shows the lane merging function for each channel; 4-, 3-, and 2-lane modes. HS BYTES TRANSMITTED (n) IS INTEGER MULTIPLE OF 3 HS BYTES TRANSMITTED (n) IS INTEGER MULTIPLE OF 4 LANE 0 SOT BYTE 0 BYTE 4 BYTE 8 BYTE n-4 EOT LANE 0 SOT BYTE 0 BYTE 3 BYTE 6 BYTE n-3 EOT LANE 1 SOT BYTE 1 BYTE 5 BYTE 9 BYTE n-3 EOT LANE 1 SOT BYTE 1 BYTE 4 BYTE 7 BYTE n-2 EOT LANE 2 SOT BYTE 2 BYTE 6 BYTE 10 BYTE n-2 EOT LANE 2 SOT BYTE 2 BYTE 5 BYTE 8 BYTE n-1 EOT LANE 3 SOT BYTE 3 BYTE 7 BYTE 11 BYTE n-1 EOT HS BYTES TRANSMITTED (n) IS 1 LESS THAN INTEGER MULTIPLE OF 3 HS BYTES TRANSMITTED (n) IS 1 LESS THAN INTEGER MULTIPLE OF 4 LANE 0 SOT BYTE 0 BYTE 4 BYTE 8 BYTE n-3 EOT LANE 1 SOT BYTE 1 BYTE 5 BYTE 9 BYTE n-2 EOT LANE 2 SOT BYTE 2 BYTE 6 BYTE 10 BYTE n-1 EOT LANE 3 SOT BYTE 3 BYTE 7 BYTE 11 EOT LANE 0 SOT BYTE 0 BYTE 3 BYTE 6 BYTE n-2 EOT LANE 1 SOT BYTE 1 BYTE 4 BYTE 7 BYTE n-1 EOT LANE 2 SOT BYTE 2 BYTE 5 BYTE 8 EOT HS BYTES TRANSMITTED (n) IS 2 LESS THAN INTEGER MULTIPLE OF 3 HS BYTES TRANSMITTED (n) IS 2 LESS THAN INTEGER MULTIPLE OF 4 LANE 0 SOT BYTE 0 BYTE 4 BYTE 8 BYTE n-2 EOT LANE 1 SOT BYTE 1 BYTE 5 BYTE 9 BYTE n-1 EOT LANE 2 SOT BYTE 2 BYTE 6 BYTE 10 EOT LANE 3 SOT BYTE 3 BYTE 7 BYTE 11 EOT LANE 0 SOT BYTE 0 BYTE 3 BYTE 6 BYTE n-1 LANE 1 SOT BYTE 1 BYTE 4 BYTE 7 EOT LANE 2 SOT BYTE 2 BYTE 5 BYTE 8 EOT 3 DSI Data Lane Configuration HS BYTES TRANSMITTED (n) IS INTEGER MULTIPLE OF 2 HS BYTES TRANSMITTED (n) IS 3 LESS THAN INTEGER MULTIPLE OF 4 LANE 0 SOT BYTE 0 BYTE 4 BYTE 8 BYTE n-1 LANE 1 SOT BYTE 1 BYTE 5 BYTE 9 EOT LANE 2 SOT BYTE 2 BYTE 6 BYTE 10 EOT LANE 3 SOT BYTE 3 BYTE 7 BYTE 11 EOT 4 DSI Data Lane Configuration (default) EOT EOT LANE 0 SOT BYTE 0 BYTE 2 BYTE 4 BYTE n-2 EOT LANE 1 SOT BYTE 1 BYTE 3 BYTE 5 BYTE n-1 EOT HS BYTES TRANSMITTED (n) IS 1 LESS THAN INTEGER MULTIPLE OF 2 LANE 0 SOT BYTE 0 BYTE 2 BYTE 4 BYTE n-1 LANE 1 SOT BYTE 1 BYTE 3 BYTE 5 EOT EOT 2 DSI Data Lane Configuration Figure 13. SN65DSI83 DSI Lane Merging Illustration 18 Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 SN65DSI83 www.ti.com SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 7.4.5 DSI Pixel Stream Packets The SN65DSI83 device processes 18 bpp (RGB666) and 24 bpp (RGB888) DSI packets on each channel, as shown in Figure 14, Figure 15, andFigure 16. 2 Bytes DATA TYPE (0x2E) VIRTUAL CHANNEL 1 Byte 1 Byte WORD COUNT WORD COUNT Bytes 18 bpp Loosely Packed Pixel Stream ECC CRC CHECKSUM (Variable Size Payload) Packet Payload Packet Header 1 Byte 01 2 Bytes 1 Byte 1 Byte 1 Byte 1 Byte Packet Footer 1 Byte 1 Byte 1 Byte 1 Byte 2 7 2 7 2 7 2 7 2 7 2 7 2 7 2 7 2 7 R0 R5 G0 G5 B0 B5 R0 R5 G0 G5 B0 B5 R0 R5 G0 G5 B0 B5 6-bits RED 6-bits GREEN 6-bits BLUE 6-bits RED First Pixel in Packet 6-bits GREEN 6-bits BLUE 6-bits RED Second Pixel in Packet 6-bits GREEN 6-bits BLUE Third Pixel in Packet Variable Size Payload (Three Pixels Per Nine Bytes of Payload) Figure 14. 18 bpp (Loosely Packed) DSI Packet Structure 2 Bytes DATA TYPE (0x1E) VIRTUAL CHANNEL 1 Byte 1 Byte WORD COUNT WORD COUNT Bytes 18 bpp Packed Pixel Stream ECC 0 R0 Packet Payload 5 1 Byte 6 7 0 R5 G0 6-bits RED CRC CHECKSUM (Variable Size Payload) Packet Header 1 Byte 2 Bytes 3 4 G5 B 0 6-bits GREEN First Pixel in Packet 1 Byte 7 01 2 7 B 5 R0 6-bits BLUE 1 Byte 0 5 R5 G0 6-bits RED 1 Byte 6 7 0 G5 B 0 6-bits GREEN Second Pixel in Packet 3 4 B 5 R0 6-bits BLUE Packet Footer 1 Byte 7 01 2 7 R5 G0 6-bits RED 1 Byte 0 G5 B 0 6-bits GREEN 5 1 Byte 6 7 0 B 5 R0 6-bits BLUE Third Pixel in Packet 3 4 7 01 R5 G0 6-bits RED 1 Byte 2 7 G5 B 0 6-bits GREEN B5 6-bits BLUE Fourth Pixel in Packet Variable Size Payload (Four Pixels Per Nine Bytes of Payload) Figure 15. 18 bpp (Tightly Packed) DSI Packet Structure Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 19 SN65DSI83 SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 2 Bytes DATA TYPE (0x3E) VIRTUAL CHANNEL 1 Byte www.ti.com 1 Byte WORD COUNT WORD COUNT Bytes 24 bpp Packed Pixel Stream ECC CRC CHECKSUM (Variable Size Payload) Packet Payload Packet Header 1 Byte 1 Byte 0 7 0 R0 R7 G0 8-bits RED 2 Bytes 1 Byte 7 0 7 G 7 B0 8-bits GREEN 1 Byte B7 8-bits BLUE 1 Byte 0 7 0 R0 R7 G0 8-bits RED First Pixel in Packet Packet Footer 1 Byte 7 0 7 G 7 B0 8-bits GREEN 1 Byte B7 0 7 R0 8-bits BLUE R7 8-bits RED Second Pixel in Packet 1 Byte 1 Byte 0 7 G0 G7 B 0 0 8-bits GREEN 7 B7 8-bits BLUE Third Pixel in Packet Variable Size Payload (Three Pixels Per Nine Bytes of Payload) Figure 16. 24 bpp DSI Packet Structure 7.4.6 DSI Video Transmission Specifications The SN65DSI83 device supports burst video mode and non-burst video mode with sync events or with sync pulses packet transmission as described in the DSI specification. The burst mode supports time-compressed pixel stream packets that leave added time per scan line for power savings LP mode. The SN65DSI83 device requires a transition to LP mode once per frame to enable PHY synchronization with the DSI host processor; however, for a robust and low-power implementation, the transition to LP mode is recommended on every video line. Figure 17 shows the DSI video transmission applied to SN65DSI83 device applications. In all applications, the LVDS output rate must be less than or equal to the DSI input rate. The first line of a video frame shall start with a VSS packet, and all other lines start with VSE or HSS. The position of the synchronization packets in time is of utmost importance since this has a direct impact on the visual performance of the display panel; that is, these packets generate the HS and VS (horizontal and vertical sync) signals on the LVDS interface after the delay programmed into CHA_SYNC_DELAY_LOW/HIGH (CSR 0x28.7:0 and 0x29.3:0). As required in the DSI specification, the SN65DSI83 device requires that pixel stream packets contain an integer number of pixels (that is, end on a pixel boundary); TI recommends to transmit an entire scan line on one pixel stream packet. When a scan line is broken in to multiple packets, inter-packet latency shall be considered such that the video pipeline (that is, pixel queue or partial line buffer) does not run empty (under-run); during scan line processing, if the pixel queue runs empty, the SN65DSI83 device transmits zero data (18'b0 or 24'b0) on the LVDS interface. NOTE When the HS clock is used as a source for the LVDS pixel clock, the LP mode transitions apply only to the data lanes, and the DSI clock lane remains in the HS mode during the entire video transmission. 20 Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 SN65DSI83 www.ti.com SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 NOTE The SN65DSI83 device does not support the DSI virtual channel capability or reverse direction (peripheral to processor) transmissions. One Video Frame Vertical sync / blanking t W (HS ) HS (1) t PD RGB NOP/ LP ... HS (1) t PD VS (2) VS DE (3) DE (3) DE (3) 0x000 Vertical sync / blanking t W(HS) HS (1) VS (2) DATA NOP/ LP HSS DSI Channel NOP/ LP NOP/ LP ... t LINE HSS DSI Channel A NOP/ LP Active Video Line LVDS Transfer Function t LINE HSS VSS t LINE NOP/ LP NOP/ LP Active Lines Vertical Blanking Period LVDS Transfer Function DSI Channel A RGB t LINE HSS NOP/ ... LP RGB t LINE HSS NOP/ LP t LINE HSS NOP/ LP ... HSS NOP/ LP t LINE NOP/ LP NOP/ LP t LINE HSS DSI Channel A t LINE HSS VSS t LINE DATA 0x000 DATA (1) The assertion of HS is delayed (t PD) by a programmable number of pixel clocks from the last bit of VSS/HSS packet received on DSI. The HS pulse width (tW(HS) ) is also programmable. The illustration shows HS active low. (2) VS is signaled for a programmable number of lines (tLINE ) and is asserted when HS is asserted for the first line of the frame . VS is de -asserted when HS is asserted after the number of lines programmed has been reached. The illustration shows VS active low (2) 0x000 PixelStream Data 0x000 (4) LEGEND VSS DSI Sync Event Packet: V Sync Start HSS DSI Sync Event Packet: H Sync Start RGB A sequence of DSI Pixel Stream Packets and Null Packets NOP/LP DSI Null Packet , Blanking Packet , or a transition to LP Mode (3) DE is asserted when active pixel data is transmitted on LVDS , and polarity is set independent to HS/VS. The illustration shows DE active high (4) After the last pixel in an active line is output to LVDS, the LVDS data is output zero Figure 17. DSI Channel Transmission and Transfer Function 7.5 Programming 7.5.1 Local I2C Interface Overview The SN65DSI83 device local I2C interface is enabled when EN is input high, access to the CSR registers is supported during ULPS. The SCL and SDA pins are used for I2C clock and I2C data respectively. The SN65DSI83 device I2C interface conforms to the 2-wire serial interface defined by the I2C Bus Specification, Version 2.1 (January 2000) and supports fast mode transfers up to 400 kbps. The device address byte is the first byte received following the start condition from the master device. The 7-bit device address for SN65DSI83 device is factory preset to 010110X with the least significant bit being determined by the ADDR control input. Table 3 clarifies the SN65DSI83 device target address. Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 21 SN65DSI83 SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 www.ti.com Programming (continued) Table 3. SN65DSI83 I2C Target Address Description (1) (2) BIT 7 (MSB) BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 (W/R) 0 1 0 1 1 0 ADDR 0/1 (1) (2) When ADDR = 1, Address cycle is 0x5A (write) and 0x5B (read) When ADDR = 0, Address cycle is 0x58 (write) and 0x59 (read) The following procedure is followed to write to the SN65DSI83 device I2C registers: 1. The master initiates a write operation by generating a start condition (S), followed by the SN65DSI83 device 7-bit address and a zero-value W/R bit to indicate a write cycle. 2. The SN65DSI83 device acknowledges the address cycle. 3. The master presents the subaddress (I2C register within SN65DSI83 device) to be written, consisting of one byte of data, MSB-first. 4. The SN65DSI83 device acknowledges the subaddress cycle. 5. The master presents the first byte of data to be written to the I2C register. 6. The SN65DSI83 device acknowledges the byte transfer. 7. The master may continue presenting additional bytes of data to be written, with each byte transfer completing with an acknowledge from the SN65DSI83 device. 8. The master terminates the write operation by generating a stop condition (P). The following procedure is followed to read the SN65DSI83 I2C registers: 1. The master initiates a read operation by generating a start condition (S), followed by the SN65DSI83 device 7-bit address and a one-value W/R bit to indicate a read cycle. 2. The SN65DSI83 device acknowledges the address cycle. 3. The SN65DSI83 device transmits the contents of the memory registers MSB-first starting at register 00h. If a write to the SN65DSI83 I2C register occurred prior to the read, then the SN65DSI83 device starts at the subaddress specified in the write. 4. The SN65DSI83 device waits for either an acknowledge (ACK) or a not-acknowledge (NACK) from the master after each byte transfer; the I2C master acknowledges reception of each data byte transfer. 5. If an ACK is received, the SN65DSI83 device transmits the next byte of data. 6. The master terminates the read operation by generating a stop condition (P). The following procedure is followed for setting a starting subaddress for I2C reads: 1. The master initiates a write operation by generating a start condition (S), followed by the SN65DSI83 device 7-bit address and a zero-value W/R bit to indicate a write cycle 2. The SN65DSI83 device acknowledges the address cycle. 3. The master presents the subaddress (I2C register within the SN65DSI83 device) to be written, consisting of one byte of data, MSB first. 4. The SN65DSI83 device acknowledges the subaddress cycle. 5. The master terminates the write operation by generating a stop condition (P). 22 Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 SN65DSI83 www.ti.com SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 7.6 Register Maps 7.6.1 Control and Status Registers Overview Many of the SN65DSI83 device functions are controlled by the control and status registers (CSR). All CSR registers are accessible through the local I2C interface. See Table 4 through Table 9 for the SN65DSI83 CSR descriptions. Reserved or undefined bit fields must not be modified. Otherwise, the device may operate incorrectly. Table 4. CSR Bit Field Definitions - ID Registers ADDRESS BIT 0x00 - 0x08 7:0 (1) DESCRIPTION Reserved Addresses 0x08 - 0x00 = {0x01, 0x20, 0x20, 0x20, 0x44, 0x53, 0x49, 0x38, 0x35} DEFAULT ACCESS (1) Reserved R/O R/O = Read only; R/W = Read/write; R/W1C = Read/write 1 to clear; W/O = Write only (reads return undetermined values) Table 5. CSR Bit Field Definitions - Reset and Clock Registers ADDRESS 0x09 0x0A BIT DESCRIPTION DEFAULT 0 SOFT_RESET This bit automatically clears when set to 1 and returns 0s when read. This bit must be set after the CSR's are updated. This bit must also be set after making any changes to the DIS clock rate or after changing between DSI burst and nonburst modes. 0 - No action (default) 1 - Reset device to default condition excluding the CSR bits 0 W/O 7 PLL_EN_STAT After PLL_EN_STAT = 1, wait at least 3 ms for PLL to lock 0 - PLL not enabled (default) 1 - PLL enabled 0 R/O 101 R/W 3:1 0 HS_CLK_SRC 0 - LVDS pixel clock derived from input REFCLK (default) 1 - LVDS pixel clock derived from MIPI D-PHY channel A HS continuous clock 0 R/W 7:3 DSI_CLK_DIVIDER When CSR 0x0A.0 = 1, this field controls the divider used to generate the LVDS output clock from the MIPI D-PHY Channel A HS continuous clock. When CSR 0x0A.0 = 0, this field must be programmed to 00000. 00000 - LVDS clock = source clock (default) 00001 - Divide by 2 00010 - Divide by 3 00011 - Divide by 4 ... 10111 - Divide by 24 11000 - Divide by 25 11001 through 11111 - Reserved 00000 R/W 1:0 REFCLK_MULTIPLIER When CSR 0x0A.0 = 0, this field controls the multiplier used to generate the LVDS output clock from the input REFCLK. When CSR 0x0A.0 = 1, this field must be programmed to 00. 00 - LVDS clock = source clock (default) 01 - Multiply by 2 10 - Multiply by 3 11 - Multiply by 4 00 R/W 0x0B (1) LVDS_CLK_RANGE This field selects the frequency range of the LVDS output clock. 000 - 25 MHz LVDS_CLK < 37.5 MHz 001 - 37.5 MHz LVDS_CLK < 62.5 MHz 010 - 62.5 MHz LVDS_CLK < 87.5 MHz 011 - 87.5 MHz LVDS_CLK < 112.5 MHz 100 - 112.5 MHz LVDS_CLK < 137.5 MHz 101 - 137.5 MHz LVDS_CLK 154 MHz (default) 110 - Reserved 111 - Reserved ACCESS (1) R/O = Read Only; R/W = Read/write; R/W1C = Read/write 1 to Clear; W/O = Write only (reads return undetermined values) Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 23 SN65DSI83 SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 www.ti.com Table 5. CSR Bit Field Definitions - Reset and Clock Registers (continued) ADDRESS 0x0D BIT DESCRIPTION DEFAULT 0 PLL_EN When this bit is set, the PLL is enabled with the settings programmed into CSR 0x0A and CSR 0x0B. The PLL must be disabled before changing any of the settings in CSR 0x0A and CSR 0x0B. The input clock source must be active and stable before the PLL is enabled. 0 - PLL disabled (default) 1 - PLL enabled 0 ACCESS (1) R/W Table 6. CSR Bit Field Definitions - DSI Registers ADDRESS 0x10 BIT 24 ACCESS 7 Reserved. Do not write to this field. Must remain at default. 0 R/W Reserved. Do not write to this field. Must remain at default. 01 R/W 4:3 CHA_DSI_LANES This field controls the number of lanes that are enabled for DSI channel A. 00 - Four lanes are enabled 01 - Three lanes are enabled 10 - Two lanes are enabled 11 - One lane is enabled (default) Note: Unused DSI input pins on the SN65DSI83 must be left unconnected. 11 R/W SOT_ERR_TOL_DIS 0 - Single bit errors are tolerated for the start of transaction SoT leader sequence (default) 1 - No SoT bit errors are tolerated 0 R/W 7:6 CHA_DSI_DATA_EQ This field controls the equalization for the DSI channel A data lanes 00 - No equalization (default) 01 - 1 dB equalization 10 - Reserved 11 - 2 dB equalization 00 R/W 3:2 CHA_DSI_CLK_EQ This field controls the equalization for the DSI channel A clock 00 - No equalization (default) 01 - 1-dB equalization 10 - Reserved 11 - 2-dB equalization 00 R/W 7:0 CHA_DSI_CLK_RANGE This field specifies the DSI clock frequency range in 5-MHz increments for the DSI channel A clock 0x00 through 0x07 - Reserved 0x08 - 40 frequency < 45 MHz 0x09 - 45 frequency < 50 MHz ... 0x63 - 495 frequency < 500 MHz 0x64 - 500 MHz 0x65 through 0xFF - Reserved 0 R/W 0x11 (1) DEFAULT 6:5 0 0x12 DESCRIPTION (1) R/O = Read only; R/W = Read/write; R/W1C = Read/write 1 to clear; W/O = Write only (reads return undetermined values) Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 SN65DSI83 www.ti.com SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 Table 7. CSR Bit Field Definitions - LVDS Registers ADDRESS 0x18 BIT DESCRIPTION DEFAULT 7 DE_NEG_POLARITY 0 - DE is positive polarity driven 1 during active pixel transmission on LVDS (default) 1 - DE is negative polarity driven 0 during active pixel transmission on LVDS 0 R/W 6 HS_NEG_POLARITY 0 - HS is positive polarity driven 1 during corresponding sync conditions 1 - HS is negative polarity driven 0 during corresponding sync (default) 1 R/W 5 VS_NEG_POLARITY 0 - VS is positive polarity driven 1 during corresponding sync conditions 1 - VS is negative polarity driven 0 during corresponding sync (default) 1 R/W 4 Reserved. Do not write to this field. Must remain at default. 1 R/W 3 CHA_24BPP_MODE 0 - Force 18 bpp; LVDS channel A lane 4 (A_Y3P or A_Y3N) is disabled (default) 1 - Force 24 bpp; LVDS channel A lane 4 (A_Y3P or A_Y3N) is enabled 0 R/W 1 CHA_24BPP_FORMAT1 This field selects the 24 bpp data format 0 - LVDS channel A lane A_Y3P or A_Y3N transmits the 2 MSB per color; format 2 (default) 1 - LVDS channel A lane A_Y3P or A_Y3N transmits the 2 LSB per color; format 1 Note1: This field must be 0 when 18bpp data is received from DSI. Note2: If this field is set to 1 and CHA_24BPP_MODE is 0, the SN65DSI83 device will convert 24-bpp data to 18-bpp data for transmission to an 18-bpp panel. In this configuration, the SN65DSI83 device will not transmit the 2 LSB per color on LVDS channel A, since LVDS channel A lane 4 is disabled. 0 R/W 6 CHA_LVDS_VOCM This field controls the common mode output voltage for LVDS channel A 0 - 1.2 V (default) 1 - 0.9 V (CSR 0x1B.5:4 CHA_LVDS_CM_ADJUST must be set to 01b) 0 R/W CHA_LVDS_VOD_SWING This field controls the differential output voltage for LVDS channel A. See the Electrical Characteristics table for |VOD| for each setting: 00, 01 (default), 10, 11 01 R/W 0 R/W 1 R/W 0x19 3:2 ACCESS (1) CHA_REVERSE_LVDS This bit controls the order of the LVDS pins for channel A. 0 - Normal LVDS channel A pin order. LVDS channel A pin order is the same as listed in the Pin Assignments Section. (default) 1 - Reversed LVDS channel A pin order. LVDS channel A pin order is remapped as follows: 5 0x1A 1 (1) * * * * * * * * * * A_Y0P A_Y3P A_Y0N A_Y3N A_Y1P A_CLKP A_Y1N A_CLKN A_Y2P A_Y2P A_Y2N A_Y2N A_CLKP A_Y1P A_CLKN A_Y1N A_Y3P A_Y0P A_Y3N A_Y0N CHA_LVDS_TERM This bit controls the near end differential termination for LVDS channel A. This bit also affects the output voltage for LVDS Channel A. 0 - 100- differential termination 1 - 200- differential termination (default) R/O = Read only; R/W = Read/write; R/W1C = Read/write 1 to clear; W/O = Write only (reads return undetermined values) Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 25 SN65DSI83 SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 www.ti.com Table 7. CSR Bit Field Definitions - LVDS Registers (continued) ADDRESS 0x1B BIT 5:4 DESCRIPTION DEFAULT CHA_LVDS_CM_ADJUST This field can be used to adjust the common mode output voltage for LVDS channel A. 00 - No change to common mode voltage (default) 01 - Adjust common mode voltage down 3% 10 - Adjust common mode voltage up 3% 11 - Adjust common mode voltage up 6% 00 ACCESS (1) R/W NOTE For all video registers: TEST PATTERN GENERATION PURPOSE ONLY registers are for test pattern generation use only. Others are for normal operation unless the test pattern generation feature is enabled. Table 8. CSR Bit Field Definitions - Video Registers ADDRESS BIT DESCRIPTION DEFAULT 0x20 7:0 CHA_ACTIVE_LINE_LENGTH_LOW This field controls the length in pixels of the active horizontal line that are received on DSI channel A and output to LVDS channel A.. The value in this field is the lower 8 bits of the 12-bit value for the horizontal line length. 0 R/W 3:0 CHA_ACTIVE_LINE_LENGTH_HIGH This field controls the length in pixels of the active horizontal line that are received on DSI channel A and output to LVDS channel A.. The value in this field is the upper 4 bits of the 12-bit value for the horizontal line length. 0 R/W 7:0 CHA_VERTICAL_DISPLAY_SIZE_LOW TEST PATTERN GENERATION PURPOSE ONLY. This field controls the vertical display size in lines for LVDS channel A. The value in this field is the lower 8 bits of the 12-bit value for the vertical display size. The value in this field is only used for channel A test pattern generation. 0 R/W 3:0 CHA_VERTICAL_DISPLAY_SIZE_HIGH TEST PATTERN GENERATION PURPOSE ONLY. This field controls the vertical display size in lines for LVDS channel A. The value in this field is the upper 4 bits of the 12-bit value for the vertical display size. The value in this field is only used for channel A test pattern generation. 0 R/W 7:0 CHA_SYNC_DELAY_LOW This field controls the delay in pixel clocks from when an HSync or VSync is received on the DSI to when it is transmitted on the LVDS interface for channel A. The delay specified by this field is in addition to the pipeline and synchronization delays in the SN65DSI83 device. The additional delay is approximately 10 pixel clocks. The sync delay must be programmed to at least 32 pixel clocks to ensure proper operation. The value in this field is the lower 8 bits of the 12-bit value for the sync delay. 0 R/W 3:0 CHA_SYNC_DELAY_HIGH This field controls the delay in pixel clocks from when an HSync or VSync is received on the DSI to when it is transmitted on the LVDS interface for channel A. The delay specified by this field is in addition to the pipeline and synchronization delays in the SN65DSI83 device. The additional delay is approximately 10 pixel clocks. The sync delay must be programmed to at least 32 pixel clocks to ensure proper operation. The value in this field is the lower 4 bits of the 12-bit value for the sync delay. 0 R/W 7:0 CHA_HSYNC_PULSE_WIDTH_LOW This field controls the width in pixel clocks of the HSync pulse duration for LVDS channel A. The value in this field is the lower 8 bits of the 10-bit value for the HSync pulse duration. The value in this field is used for channel A test pattern generation when test pattern generation feature is enabled by programming bit 4 at 0x3C. 0 R/W 0x21 0x24 0x25 0x28 0x29 0x2C (1) 26 ACCESS (1) R/O = Read only; R/W = Read/write; R/W1C = Read/write 1 to clear; W/O = Write only (reads return undetermined values) Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 SN65DSI83 www.ti.com SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 Table 8. CSR Bit Field Definitions - Video Registers (continued) ADDRESS 0x2D 0x30 0x31 0x34 0x36 0x38 0x3A 0x3C BIT DESCRIPTION DEFAULT ACCESS 1:0 CHA_HSYNC_PULSE_WIDTH_HIGH This field controls the width in pixel clocks of the HSync pulse duration for LVDS channel A. The value in this field is the upper 2 bits of the 10-bit value for the HSync pulse duration. The value in this field is used for channel A test pattern generation when test pattern generation feature is enabled by programming bit 4 at 0x3C. 0 R/W 7:0 CHA_VSYNC_PULSE_WIDTH_LOW This field controls the length in lines of the VSync pulse duration for LVDS channel A. The value in this field is the lower 8 bits of the 10-bit value for the VSync pulse duration. The value in this field is used for channel A test pattern generation when test pattern generation feature is enabled by programming bit 4 at 0x3C. 0 R/W 1:0 CHA_VSYNC_PULSE_WIDTH_HIGH This field controls the length in lines of the VSync pulse duration for LVDS channel A. The value in this field is the upper 2 bits of the 10-bit value for the VSync pulse duration. The value in this field is used for channel A test pattern generation when test pattern generation feature is enabled by programming bit 4 at 0x3C. 0 R/W 7:0 CHA_HORIZONTAL_BACK_PORCH This field controls the time in pixel clocks between the end of the HSync pulse and the start of the active video data for LVDS channel A. The value in this field is used for channel A test pattern generation when test pattern generation feature is enabled by programming bit 4 at 0x3C. 0 R/W 7:0 CHA_VERTICAL_BACK_PORCH TEST PATTERN GENERATION PURPOSE ONLY. This field controls the number of lines between the end of the VSync pulse and the start of the active video data for LVDS channel A. The value in this field is only used for channel A test pattern generation. 0 R/W 7:0 CHA_HORIZONTAL_FRONT_PORCH TEST PATTERN GENERATION PURPOSE ONLY. This field controls the time in pixel clocks between the end of the active video data and the start of the HSync pulse for LVDS channel A. The value in this field is only used for channel A test pattern generation. 0 R/W 7:0 CHA_VERTICAL_FRONT_PORCH TEST PATTERN GENERATION PURPOSE ONLY. This field controls the number of lines between the end of the active video data and the start of the VSync pulse for LVDS channel A. The value in this field is only used for channel A test pattern generation. 0 R/W 4 CHA_TEST_PATTERN TEST PATTERN GENERATION PURPOSE ONLY. When this bit is set, the SN65DSI83 device will generate a video test pattern for LVDS channel A based on the values programmed into the video registers for channel A. 0 R/W Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 (1) 27 SN65DSI83 SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 www.ti.com Table 9. CSR Bit Field Definitions - IRQ Registers ADDRESS 0xE0 0xE1 BIT DESCRIPTION DEFAULT 0 IRQ_EN When enabled by this field, the IRQ output is driven high to communicate IRQ events. 0 - IRQ output is high-impedance (default) 1 - IRQ output is driven high when a bit is set in registers 0xE5 that also has the corresponding IRQ_EN bit set to enable the interrupt condition 0 R/W 7 CHA_SYNCH_ERR_EN 0 - CHA_SYNCH_ERR is masked 1 - CHA_SYNCH_ERR is enabled to generate IRQ events 0 R/W 6 CHA_CRC_ERR_EN 0 - CHA_CRC_ERR is masked 1 - CHA_CRC_ERR is enabled to generate IRQ events 0 R/W 5 CHA_UNC_ECC_ERR_EN 0 - CHA_UNC_ECC_ERR is masked 1 - CHA_UNC_ECC_ERR is enabled to generate IRQ events 0 R/W 4 CHA_COR_ECC_ERR_EN 0 - CHA_COR_ECC_ERR is masked 1 - CHA_COR_ECC_ERR is enabled to generate IRQ events 0 R/W 3 CHA_LLP_ERR_EN 0 - CHA_LLP_ERR is masked 1 - CHA_ LLP_ERR is enabled to generate IRQ events 0 R/W 2 CHA_SOT_BIT_ERR_EN 0 - CHA_SOT_BIT_ERR is masked 1 - CHA_SOT_BIT_ERR is enabled to generate IRQ events 0 R/W 0 PLL_UNLOCK_EN 0 - PLL_UNLOCK is masked 1 - PLL_UNLOCK is enabled to generate IRQ events 0 R/W 7 CHA_SYNCH_ERR When the DSI channel A packet processor detects an HS or VS synchronization error, that is, an unexpected sync packet; this bit is set; this bit is cleared by writing a 1 value. 0 R/W1C 6 CHA_CRC_ERR When the DSI channel A packet processor detects a data stream CRC error, this bit is set; this bit is cleared by writing a 1 value. 0 R/W1C 5 CHA_UNC_ECC_ERR When the DSI channel A packet processor detects an uncorrectable ECC error, this bit is set; this bit is cleared by writing a 1 value. 0 R/W1C 4 CHA_COR_ECC_ERR When the DSI channel A packet processor detects a correctable ECC error, this bit is set; this bit is cleared by writing a 1 value. 0 R/W1C 3 CHA_LLP_ERR When the DSI channel A packet processor detects a low level protocol error, this bit is set; this bit is cleared by writing a 1 value. Low-level protocol errors include SoT and EoT sync errors, Escape Mode entry command errors, LP transmission sync errors, and false control errors. Lane merge errors are reported by this status condition. 0 R/W1C 2 CHA_SOT_BIT_ERR When the DSI channel A packet processor detects an SoT leader sequence bit error, this bit is set; this bit is cleared by writing a 1 value. 0 R/W1C 0 PLL_UNLOCK This bit is set whenever the PLL Lock status transitions from LOCK to UNLOCK. 1 R/W1C 0xE5 (1) 28 ACCESS (1) R/O = Read only; R/W = Read/write; R/W1C = Read/write 1 to clear; W/O = Write only (reads return undetermined values) Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 SN65DSI83 www.ti.com SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 8 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI's customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 8.1 Application Information The SN65DSI83 device is primarily targeted for portable applications such as tablets and smart phones that utilize the MIPI DSI video format. The SN65DSI83 device can be used between a GPU with DSI output and a video panel with LVDS inputs. 8.1.1 Video STOP and Restart Sequence When the system requires to stop outputting video to the display, TI recommends to use the following sequence for the SN65DSI83 device: 1. Clear the PLL_EN bit to 0 (CSR 0x0D.0). 2. Stop video streaming on DSI inputs. 3. Drive all DSI data lanes to LP11, but keep the DSI CLK lanes in HS. When the system is ready to restart the video streaming. 1. Start video streaming on DSI inputs. 2. Set the PLL_EN bit to 1 (CSR 0x0D.0). 3. Wait for minimum of 3 ms. 4. Set the SOFT_RESET bit (0x09.0). 8.1.2 Reverse LVDS Pin Order Option For ease of PCB routing, the SN65DSI83 device supports reversing the pin order via configuration register programming. The order of the LVDS pin for LVDS channel A can be reversed by setting the address 0x1A bit 5 CHA_REVERSE_LVDS. See the corresponding register bit definition for details. 8.1.3 IRQ Usage The SN65DSI83 device provides an IRQ pin that can be used to indicate when certain errors occur on DSI. The IRQ output is enabled through the IRQ_EN bit (CSR 0xE0.0). The IRQ pin will be asserted when an error occurs on DSI, the corresponding error enable bit is set, and the IRQ_EN bit is set. An error is cleared by writing a 1 to the corresponding error status bit. NOTE If the SOFT_RESET bit is set while the DSI video stream is active, some of the error status bits may be set. NOTE If the DSI video stream is stopped, some of the error status bits may be set. These error status bits must be cleared before restarting the video stream. NOTE If the DSI video stream starts before the device is configured, some of the error status bits may be set. TI recommends to start streaming after the device is correctly configured as recommended in the initialization sequence in Initialization Sequence. Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 29 SN65DSI83 SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 www.ti.com 8.2 Typical Application Figure 18 shows a typical application using the SN65DSI83 device for a single channel DSI receiver to interface a single-channel DSI application processor to an LVDS single-link 18 bit-per-pixel panel supporting 1280 x 800 WXGA resolutions at 60 frames per second. A_Y0N A_Y0P 100 DA0P DA0N A_Y1N A_Y1P 100 A_Y2N A_Y2P 100 A_CLKN A_CLKP 100 DA1P DA1N DA2P DA2N DA3P DA3N To column driver To row driver 18bpp TCON Application Processor SN65DSI83 A_Y3N A_Y3P DACP DACN SCL SDA IRQ EN ADDR REFCLK GND 1.8V VCC C1 Figure 18. Typical WXGA 18-bpp Panel Application 8.2.1 Design Requirements Table 10. Design Parameters DESIGN PARAMETERS EXAMPLE VALUE VCC 1.8 V (5%) Clock Source (REFCLK or DSIA_CLK) DSIA_CLK REFCKL Frequency N/A DSIA Clock Frequency 500 MHz PANEL INFORMATION Pixel Clock (MHz) 30 83 MHz Horizontal Active (pixels) 1280 Horizontal Blanking (pixels) 384 Vertical Active (lines) 800 Vertical Blanking (lines) 30 Horizontal Sync Offset (pixels) 64 Horizontal Sync Pulse Width (pixels) 128 Vertical Sync Offset (lines) 3 Vertical Sync Pulse Width (lines) 7 Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 SN65DSI83 www.ti.com SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 Table 10. Design Parameters (continued) DESIGN PARAMETERS EXAMPLE VALUE PANEL INFORMATION (continued) Horizontal Sync Pulse Polarity Negative Vertical Sync Pulse Polarity Negative Color Bit Depth (6 bpc or 8 bpc) 6-bit Number of LVDS Lanes 1 x [3 Data Lanes + 1 Clock Lane] DSI INFORMATION Number of DSI Lanes 1 x [4 Data Lanes + 1 Clock Lane] DSI Clock Frequency(MHz) 500 MHz Dual DSI Configuration(Odd/Even or Left/Right) N/A 8.2.2 Detailed Design Procedure The video resolution parameters required by the panel need to be programmed into the SN65DSI83 device. For this example, the parameters programmed would be the following: Horizontal Active = 1280 or 0x500 CHA_ACTIVE_LINE_LENGTH_LOW = 0x00 CHA_ACTIVE_LINE_LENGTH_HIGH = 0x05 Vertical Active = 800 or 0x320 CHA_VERTICAL_DISPLAY_SIZE_LOW = 0x20 CHA_VERTICAL_DISPLAY_SIZE_HIGH = 0x03 Horizontal Pulse Width = 128 or 0x80 CHA_HSYNC_PULSE_WIDTH_LOW = 0x80 CHA_HSYNC_PULSE_WIDTH_HIGH = 0x00 Vertical Pulse Width = 7 CHA_VSYNC_PULSE_WIDTH_LOW = 0x07 CHA_VSYNC_PULSE_WIDTH_HIGH = 0x00 Horizontal Backporch = HorizontalBlanking - (HorizontalSyncOffset + HorizontalSyncPulseWidth) Horizontal Backporch = 384 - (64 + 128) Horizontal Backporch = 192 or 0xC0 CHA_HORIZONTAL_BACK_PORCH = 0xC0 Vertical Backporch = VerticalBlanking - (VerticalSyncOffset +VerticalSyncPulseWidth) Vertical Backporch = 30 - (3 + 7) Vertical Backporch = 20 or 0x14 CHA_VERTICAL_BACK_PORCH = 0x14 Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 31 SN65DSI83 SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 www.ti.com Horizontal Frontporch = HorizontalSyncOffset Horizontal Frontporch = 64 or 0x40 CHA_HORIZONTAL_FRONT_PORCH = 0x40 Vertical Frontporch = VerticalSyncOffset Vertical Frontporch = 3 CHA_VERTICAL_FRONT_PORCH = 0x03 The pattern generation feature can be enabled by setting the CHA_TEST_PATTERN bit at address 0x3C and configuring the TEST PATTERN GENERATION PURPOSE ONLY register as shown in Table 8. LVDS clock is derived from the DSI channel A clock. When the MIPI D-PHY channel A HS clock is used as the LVDS clock source, it is divided by the factor in DSI_CLK_DIVIDER (CSR 0x0B.7:3) to generate the FlatLink LVDS output clock. Additionally, LVDS_CLK_RANGE (CSR 0x0A.3:1) and CH_DSI_CLK_RANGE(CSR 0x12) must be set to the frequency range of the FlatLink LVDS output clock and DSI Channel A input clock respectively for the internal PLL to operate correctly. After these settings are programmed, PLL_EN (CSR 0x0D.0) must be set to enable the internal PLL. LVDS_CLK_RANGE = 2 - 62.5 MHz LVDS_CLK < 87.5 MHz HS_CLK_SRC = 1 - LVDS pixel clock derived from MIPI D-PHY channel A DSI_CLK_DIVIDER = 00101 - Divide by 6 CHA_DSI_LANES = 00 - Four lanes are enabled CHA_DSI_CLK_RANGE = 0x64 - 500 MHz 32 Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 SN65DSI83 www.ti.com SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 8.2.2.1 Example Script This example configures the SN65DSI83 device for the following configuration: <aardvark> <configure i2c="1" spi="1" gpio="0" tpower="1" pullups="1"/> <i2c_bitrate khz="100"/> =====SOFTRESET======= <i2c_write addr="0x2D" count="1" radix="16">09 01</i2c_write> <sleep ms="10"/> ======PLL_EN(bit 0) - Enable LAST after addr 0A and 0B configured====== <i2c_write addr="0x2D" count="1" radix="16">0D 00</i2c_write> <sleep ms="10"/> ======HS_CLK_SRC bit0=== ======LVDS_CLK_Range bit 3:1====== <i2c_write addr="0x2D" count="1" radix="16"> 0A 05</i2c_write> <sleep ms="10"/> ======DSI_CLK_DIVIDER bit7:3===== ======RefCLK multiplier(bit1:0)====== ======00 - LVDSclk=source clk, 01 - x2, 10 -x3, 11 - x4====== <i2c_write addr="0x2D" count="1" radix="16">0B 28</i2c_write> <sleep ms="10"/> ======DSI Ch Confg Left_Right Pixels(bit7 - 0 for A ODD, B EVEN, 1 for the other config)====== ======DSI Ch Mode(bit6:5) 00 - Dual, 01 - single, 10 - two single ======= ======SOT_ERR_TOL_DIS(bit0)======= <i2c_write addr="0x2D" count="1" radix="16">10 26</i2c_write> <sleep ms="10"/> ====500M==== <i2c_write addr="0x2D" count="1" radix="16">12 64</i2c_write> <sleep ms="10"/> ======bit7: DE_Pol, bit6:HS_Pol, bit5:VS_Pol, bit4: LVDS Link Cfg, bit3:CHA 24bpp, bit2: CHB 24bpp, bit1: CHA 24bpp fmt1, bit0: CHB 24bpp fmt1====== <i2c_write addr="0x2D" count="1" radix="16">18 72</i2c_write> <sleep ms="10"/> <i2c_write addr="0x2D" count="1" radix="16">19 00</i2c_write> <sleep ms="10"/> ======CHA_LINE_LENGTH_LOW======== <i2c_write addr="0x2D" count="1" radix="16">20 00</i2c_write> <sleep ms="10"/> ======CHA_LINE_LENGTH_HIGH======== <i2c_write addr="0x2D" count="1" radix="16">21 05</i2c_write> <sleep ms="10"/> ======CHA_VERTICAL_DISPLAY_SIZE_LOW======== <i2c_write addr="0x2D" count="1" radix="16">24 00</i2c_write> <sleep ms="10"/> ======CHA_VERTICAL_DISPLAY_SIZE_HIGH======== <i2c_write addr="0x2D" count="1" radix="16">25 04</i2c_write> <sleep ms="10"/> ======CHA_SYNC_DELAY_LOW======== <i2c_write addr="0x2D" count="1" radix="16">28 20</i2c_write> <sleep ms="10"/> ======CHA_SYNC_DELAY_HIGH======== <i2c_write addr="0x2D" count="1" radix="16">29 01</i2c_write> <sleep ms="10"/> ======CHA_HSYNC_PULSE_WIDTH_LOW======== <i2c_write addr="0x2D" count="1" radix="16">2C 80</i2c_write> <sleep ms="10"/> ======CHA_HSYNC_PULSE_WIDTH_HIGH======== <i2c_write addr="0x2D" count="1" radix="16">2D 00</i2c_write> <sleep ms="10"/> ======CHA_VSYNC_PULSE_WIDTH_LOW======== <i2c_write addr="0x2D" count="1" radix="16">30 07</i2c_write> <sleep ms="10"/> ======CHA_VSYNC_PULSE_WIDTH_HIGH======== <i2c_write addr="0x2D" count="1" radix="16">31 00</i2c_write> <sleep ms="10"/> ======CHA_HOR_BACK_PORCH======== <i2c_write addr="0x2D" count="1" radix="16">34 C0</i2c_write> <sleep ms="10"/> ======CHA_VER_BACK_PORCH======== <i2c_write addr="0x2D" count="1" radix="16">36 00</i2c_write> <sleep ms="10"/> ======CHA_HOR_FRONT_PORCH======== Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 33 SN65DSI83 SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 www.ti.com <i2c_write addr="0x2D" count="1" radix="16">38 00</i2c_write> <sleep ms="10"/> ======CHA_VER_FRONT_PORCH======== <i2c_write addr="0x2D" count="1" radix="16">3A 00</i2c_write> <sleep ms="10"/> ======CHA/CHB TEST PATTERN(bit4 CHA, bit0 CHB)======== <i2c_write addr="0x2D" count="1" radix="16">3C 00</i2c_write> <sleep ms="10"/> ======PLL_EN(bit 0) - Enable LAST after addr 0A and 0B configured====== <i2c_write addr="0x2D" count="1" radix="16">0D 01</i2c_write> <sleep ms="10"/> ======Read====== <i2c_write addr="0x2D" count="1" radix="16">00</i2c_write> <sleep ms="10"/> ======Read====== <i2c_write addr="0x2D" count="256" radix="16">00</i2c_write> <sleep ms="10"/> </aardvark> 8.2.3 Application Curve 120 ICC (mA) 115 110 105 100 95 1.6 1.65 1.7 1.75 1.8 1.85 VCC (V) 1.9 1.95 2 D001 B. SN65DSI83: SINGLE Channel DSI to SINGLE Channel DSI, 1280 x 800 a. number of LVDS lanes = 3 data lanes + 1 CLK lane b. number of DSI lanes = 4 data lanes + 1 CLK lane c. LVDS CLK OUT = 83 M d. DSI CLK = 500 M e. RGB666, LVDS 18 bpp Figure 19. Power Consumption 9 Power Supply Recommendations 9.1 VCC Power Supply Each VCC power supply pin must have a 100-nF capacitor to ground connected as close as possible to the SN65DSI83 device. It is recommended to have one bulk capacitor (1 F to 10 F) on it. It is also recommended to have the pins connected to a solid power plane. 9.2 VCORE Power Supply This pin must have a 100-nF capacitor to ground connected as close as possible to the SN65DSI83 device. It is recommended to have one bulk capacitor (1 F to 10 F) on it. It is also recommended to have the pins connected to a solid power plane. 34 Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 SN65DSI83 www.ti.com SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 10 Layout 10.1 Layout Guidelines 10.1.1 Package Specific For the ZQE package, to minimize the power supply noise floor, provide good decoupling near the SN65DSI83 device power pins. The use of four ceramic capacitors (2 x 0.1 F and 2 x 0.01 F) provides good performance. At the least, TI recommends to install one 0.1-F and one 0.01-F capacitor near the SN65DSI83 device. To avoid large current loops and trace inductance, the trace length between decoupling capacitor and device power inputs pins must be minimized. Placing the capacitor underneath the SN65DSI83 device on the bottom of the PCB is often a good choice. Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 35 SN65DSI83 SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 www.ti.com Layout Guidelines (continued) 10.1.2 Differential Pairs * Differential pairs must be routed with controlled 100- differential impedance ( 20%) or 50- single-ended impedance (15%). * Keep away from other high speed signals * Keep lengths to within 5 mils of each other. * Length matching must be near the location of mismatch. * Each pair must be separated at least by 3 times the signal trace width. * The use of bends in differential traces must be kept to a minimum. When bends are used, the number of left and right bends must be as equal as possible and the angle of the bend must be 135 degrees. This arrangement minimizes any length mismatch caused by the bends and therefore minimizes the impact that bends have on EMI. * Route all differential pairs on the same of layer. * The number of vias must be kept to a minimum. It is recommended to keep the via count to 2 or less. * Keep traces on layers adjacent to ground plane. * Do NOT route differential pairs over any plane split. * Adding Test points will cause impedance discontinuity and will therefore negatively impact signal performance. If test points are used, they must be placed in series and symmetrically. They must not be placed in a manner that causes a stub on the differential pair. 10.1.3 Ground TI recommends that only one board ground plane be used in the design. This provides the best image plane for signal traces running above the plane. The thermal pad of the SN65DSI83 must be connected to this plane with vias. 10.2 Layout Example Purple traces on this side are LVDS ChB signals. Purple traces on this side are DSI ChA signals. Green traces on this side are LVDS ChA signals. Green traces on this side are LVDS ChB signals. Green - Top Layer, Purple - Layer 3, Blue - Bottom Layer Figure 20. SN65DSI8x Layout Example 36 Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 SN65DSI83 www.ti.com SLLSEC1H - SEPTEMBER 2012 - REVISED JUNE 2018 11 Device and Documentation Support 11.1 Receiving Notification of Documentation Updates To receive notification of documentation updates, navigate to the device product folder on ti.com. In the upper right corner, click on Alert me to register and receive a weekly digest of any product information that has changed. For change details, review the revision history included in any revised document. 11.2 Community Resources The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use. TI E2ETM Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers. Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support. 11.3 Trademarks FlatLink, E2E are trademarks of Texas Instruments. MIPI is a registered trademark of Arasan Chip Systems, Inc. All other trademarks are the property of their respective owners. 11.4 Electrostatic Discharge Caution These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. 11.5 Glossary SLYZ022 -- TI Glossary. This glossary lists and explains terms, acronyms, and definitions. 12 Mechanical, Packaging, and Orderable Information The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation. Submit Documentation Feedback Copyright (c) 2012-2018, Texas Instruments Incorporated Product Folder Links: SN65DSI83 37 PACKAGE OPTION ADDENDUM www.ti.com 12-Jun-2018 PACKAGING INFORMATION Orderable Device Status (1) SN65DSI83ZQER ACTIVE Package Type Package Pins Package Drawing Qty BGA MICROSTAR JUNIOR ZQE 64 2500 Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Green (RoHS & no Sb/Br) SNAGCU Level-3-260C-168 HR Op Temp (C) Device Marking (4/5) -40 to 85 DSI83 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based flame retardants must also meet the <=1000ppm threshold requirement. (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. 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Addendum-Page 1 Samples PACKAGE OPTION ADDENDUM www.ti.com 12-Jun-2018 OTHER QUALIFIED VERSIONS OF SN65DSI83 : * Automotive: SN65DSI83-Q1 NOTE: Qualified Version Definitions: * Automotive - Q100 devices qualified for high-reliability automotive applications targeting zero defects Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 12-Jun-2018 TAPE AND REEL INFORMATION *All dimensions are nominal Device SN65DSI83ZQER Package Package Pins Type Drawing BGA MI CROSTA R JUNI OR ZQE 64 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2500 330.0 12.4 Pack Materials-Page 1 5.3 B0 (mm) K0 (mm) P1 (mm) 5.3 1.5 8.0 W Pin1 (mm) Quadrant 12.0 Q1 PACKAGE MATERIALS INFORMATION www.ti.com 12-Jun-2018 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN65DSI83ZQER BGA MICROSTAR JUNIOR ZQE 64 2500 336.6 336.6 31.8 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated (TI) reserves the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. 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