SPRUIT0A December   2019  – May 2020

 

  1.   Jacinto7 EVM Infotainment Expansion
    1.     Trademarks
    2. 1 Introduction
      1. 1.1 Key Features
    3. 2 Infotainment Expansion Board Overview
      1. 2.1 Infotainment Expansion Board Identification
      2. 2.2 Infotainment Expansion Board Component Identification
    4. 3 Infotainment Expansion Board - User Setup/Configuration
      1. 3.1 Interfacing Infotainment Expansion Board With CP Board
        1. 3.1.1 Board Assembly Procedures
      2. 3.2 Power Requirements
      3. 3.3 EVM Reset/Interrupt Push Buttons
      4. 3.4 EVM Configuration DIP Switch
    5. 4 Infotainment Expansion Board Hardware Architecture
      1. 4.1  Infotainment Expansion Board Hardware Top Level Diagram
      2. 4.2  Expansion Connectors
      3. 4.3  Board ID EEPROM
      4. 4.4  Audio Codec Interface
        1. 4.4.1 Port Mapping
      5. 4.5  FPD link De-Serializer Interface (Audio)
      6. 4.6  DIR Interface
      7. 4.7  DIT Interface
      8. 4.8  Legacy Audio/JAMR3 Connectors
      9. 4.9  VIN/VOUT Mux Selection
      10. 4.10 HDMI Interface Bridge
      11. 4.11 FPD Link Display Serializer Interface
      12. 4.12 Parallel Camera Interface
        1. 4.12.1 Camera Clock
        2. 4.12.2 LI Camera Module Connector
        3. 4.12.3 OV Camera Module Connector
  2.   A Jacinto7 EVM Interface/IO Mapping
    1.     A.1 Interface Mapping
    2.     A.2 Infotainment Board GPIO Mapping
    3.     A.3 I2C Address Mapping
  3.   Revision History

A.2 Infotainment Board GPIO Mapping

GPIO expander signal mapping is as shown in Table 14.

Table 14. GPIO Expander Signal Mapping

Jacinto7 EVM -INFO GPIO Expander
I2C Bus/Address GPIO Port Net Name in INFO Board Direction WRT CTRL Default State Active State Remarks
INFO GPIO Expander - 1 Part# TCA6416ARTWR (AUDIO IO EXPANSION)
I2C3/0x21 P00 CODEC_RESETn Output PD Active Low Used as a Reset signal for Audio Codecs A & B
P01 JAMR3_RESETn Output PD Active Low Used as a Reset signal for JAMR3 Interface
P02 JAMR3_PWR_CTRL Output NA Active High Power EN for JAMR3 Interface
P03 UB926_RESETn Output PD Active Low Used as a Reset signal for FPD Audio De-Serializer
P04 PWR_SW_UB926 Output PD Active High Used as a Power Enable signal for Audio/FPD connector
P05 UB926_TUNER_RESET Output PD Active Low Used as a Reset signal for FPD
P06 UB926_GPIO_SPARE Output NA NA SPARE GPIO for FPDLink
P07 UB926_LOCK Input NA NA Lock Input from FPDLink
P10 DIR_RESETn Output PD Active Low Used as a Reset signal for DIR interface
P11 DIR_CKSEL Output PU NA Used for DIR System clock source selection Low: PLL (VCO) clock, High: XTI clock
P12 DIR_FMT0 Output PU NA DOUT Audio Data output format - 24-bit, MSB-first, I2S (Default)
P13 DIR_FMT1 Output PU NA
P14 DIR_PSCK0 Output PD NA System clock of PLL selection
P15 DIR_PSCK1 Output PD NA
P16 AUDEXP_P16 NA NA NA Reserved GPIO
P17 McASP6_MUX_SEL Output PD NA User for Mux selection b/w DIR or FPDLink
INFO GPIO Expander – 2 Part# TCA6416ARTWR ( VIDEO IN/OUT IO EXPANSION)
I2C1/0x21 P00 NC NA NA NA Not used
P01 NC NA NA NA Not used
P02 NC NA NA NA Not used
P03 NC NA NA NA Not used
P04 NC NA NA NA Not used
P05 VOUTEXP_P04 NA NA NA Terminated with Test point
P06 VOUTEXP_P05 NA NA NA Terminated with Test point
P07 NC NA NA NA Not used
P10 HDMI_PDn Output PD Active Low Used as a Power Down signal for HDMI Transmitter
P11 HDMI_DDC_OE Output PD Active High Used for HDMI I2C Translator Enable logic
P12 HDMI_HPD Input NA NA Used for detection of HDMI cable Hot plug
P13 UB921_RESETn Output PD Active Low Used as a Reset signal for FPD III Display Serializer
P14 PWR_SW_UB921 Output PD Active High Used as a Power Enable signal for Audio/FPD connector
P15 UB921_INTB Input NA Active High FPD III Display Serializer INTB = H, normal
INTB = L, Interrupt request
P16 VOUTEXP_P16 NA NA NA Terminated with Test point
P17 VOUTEXP_P17 NA NA NA Terminated with Test point

Table 15. SoC GPIO Mapping

Info Peripheral Peripheral IO Direction
(for SoC)		 Default Active State J721E Connectivity
FPD LINK III Display Interrupt Input PU Active Low GPIO0_79
Camera Mux Selection Enable Output NA ‘0’-OV
‘1’-LI		 GPIO0_78
LI/OV Camera Trigger I/O PD Active High GPIO0_31
Reset Output PU Active Low GPIO0_32
JAMR3 Interface JAMR3_GPIO0 I/O NA NA GPIO0_65
JAMR3_GPIO1 I/O NA NA GPIO0_66
JAMR3_GPIO2 I/O NA NA GPIO0_67
FPD Link III De-serializer UB926_GPIO1 I/O NA NA GPIO0_11
UB926_GPIO2 I/O NA NA GPIO0_45
UB926_GPIO3 I/O NA NA GPIO0_46
Audio IO Expander Interrupt Input PU Active Low GPIO1_23
Video IO Expander Interrupt Input PU Active Low GPIO1_24
VIN/VOUT MUX SELECTION Select0 Output PD SEL [1:0]
‘10’-HDMI
‘11’-CAM
‘01’-FPD		 I2C0 (0x20), P14
Select1 Output PU I2C0 (0x20), P15