SPRUJA1 October   2023

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1  Additional Images
    2. 2.2  Key Features
      1. 2.2.1 Processor
      2. 2.2.2 Power Supply
      3. 2.2.3 Memory
      4. 2.2.4 JTAG/Emulator
      5. 2.2.5 Support Interfaces and Peripherals
      6. 2.2.6 Expansion Connectors/Headers
    3. 2.3  Interface Mapping
    4. 2.4  Power ON/OFF Procedure
      1. 2.4.1 Power ON Procedure
      2. 2.4.2 Power OFF Procedure
      3. 2.4.3 Power Test Points
    5. 2.5  Clocking
      1. 2.5.1 Peripheral Ref Clock
    6. 2.6  Reset
    7. 2.7  CSI Interface
    8. 2.8  Audio Codec Interface
    9. 2.9  HDMI Display Interface
    10. 2.10 JTAG Interface
    11. 2.11 Test Automation Header
    12. 2.12 UART Interface
    13. 2.13 USB Interface
      1. 2.13.1 USB 2.0 Type A Interface
      2. 2.13.2 USB 2.0 Type C Interface
    14. 2.14 Memory Interfaces
      1. 2.14.1 OSPI Interface
      2. 2.14.2 MMC Interfaces
        1. 2.14.2.1 MMC0 - eMMC Interface
        2. 2.14.2.2 MMC1 - Micro SD Interface
        3. 2.14.2.3 MMC2 - M.2 Key E Interface
      3. 2.14.3 Board ID EEPROM
    15. 2.15 Ethernet Interface
      1. 2.15.1 CPSW Ethernet PHY 1 Default Configuration
      2. 2.15.2 CPSW Ethernet PHY 2 Default Configuration
    16. 2.16 GPIO Port Expander
    17. 2.17 GPIO Mapping
    18. 2.18 OLDI Display Interface
    19. 2.19 Power
      1. 2.19.1 Power Requirements
      2. 2.19.2 Power Input
      3. 2.19.3 Power Supply
      4. 2.19.4 Power Sequencing
      5. 2.19.5 AM62x SIP SoC Power
      6. 2.19.6 Current Monitoring
    20. 2.20 EVM User Setup/Configuration
      1. 2.20.1 EVM DIP Switches
      2. 2.20.2 Boot Modes
      3. 2.20.3 User Test LEDs
    21. 2.21 Expansion Headers
      1. 2.21.1 PRU Connector
      2. 2.21.2 User Expansion Connector
      3. 2.21.3 MCU Connector
    22. 2.22 Interrupt
    23. 2.23 I2C Address Mapping
  8. 3Hardware Design Files
  9. 4Compliance Information
    1. 4.1 Compliance and Certifications
  10. 5Additional Information
    1. 5.1 Trademarks

2.9 HDMI Display Interface

The DSS (Display Sub system) interface from AM62x SIP SoC is used on the SKEVM to provide a HDMI Interface through a standard Type-A Connector. The SKEVM features a SiI9022A HDMI Transmitter from Lattice semiconductors to convert the 24-bit Parallel RGB DSS output stream as well as a McASP to a HDMI-compliant digital audio and video signal.

The Data mapping format used is RGB888. The data bus width is 24-bits.

SoC_I2C1 is connected to the HDMI Transmitter to access the compatible mode registers, the TPI registers,and the CPI registers. To use the SiI9022A, the SoC needs to set up the device by the I2C interface between the SoC and the SiI9022A. Audio Data is sent from SoC to HDMI transmitter through the McASP1 instance. HDMI_I2C Bus accesses the EDID and HDCP data on an attached sink device.

TMDS Differential data pairs along with the differential clock signals from the transmitter are connected to the HDMI connector through HDMI ESD device Mfr Part# TPD12S016PWR which also acts as a load switch to limit current supplied to the HDMI connector from board 5 V supply.

The HDMI Framer is powered using 3.3 V Board IO Supply and 1.2 V by a dedicated LDO Mfr Part#- TLV75512PDQNR.

GUID-20231006-SS0I-NRLT-Q4BP-ZGHMXBC8DJCF-low.png Figure 2-9 HDMI Interface