SPRUJ66A February   2023  – December 2023

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1EVM Revisions and Assembly Variants
  5. 2Inside the Box
  6. 3EMC, EMI, and ESD Compliance
  7. 4System Description
    1. 4.1 Key Features
      1. 4.1.1 Processor
      2. 4.1.2 Power Supply
      3. 4.1.3 Memory
      4. 4.1.4 JTAG Emulator
      5. 4.1.5 Supported Interfaces and Peripherals
      6. 4.1.6 Expansion Connectors Headers to Support Application Specific Add On Boards
    2. 4.2 Functional Block Diagram
    3. 4.3 AM62A Low Power SK EVM Interface Mapping
    4. 4.4 Power ON/OFF Procedures
      1. 4.4.1 Power-On Procedure
      2. 4.4.2 Power-Off Procedure
      3. 4.4.3 Power Test Points
    5. 4.5 Peripheral and Major Component Description
      1. 4.5.1  Clocking
        1. 4.5.1.1 Peripheral Ref Clock
      2. 4.5.2  Reset
      3. 4.5.3  CSI Interface
      4. 4.5.4  Audio Codec Interface
      5. 4.5.5  HDMI Display Interface
      6. 4.5.6  JTAG Interface
      7. 4.5.7  Test Automation Header
      8. 4.5.8  UART Interface
      9. 4.5.9  USB Interface
        1. 4.5.9.1 USB 2 0 Type A Interface
        2. 4.5.9.2 USB 2 0 Type C Interface
      10. 4.5.10 Memory Interfaces
        1. 4.5.10.1 LPDDR4 Interface
        2. 4.5.10.2 OSPI Interface
        3. 4.5.10.3 MMC Interfaces
          1. 4.5.10.3.1 MMC0 - eMMC Interface
          2. 4.5.10.3.2 MMC1 - Micro SD Interface
          3. 4.5.10.3.3 MMC2 - M.2 Key E Interface
        4. 4.5.10.4 Board ID EEPROM
      11. 4.5.11 Ethernet Interface
        1. 4.5.11.1 CPSW Ethernet PHY Default Configuration
      12. 4.5.12 GPIO Port Expander
      13. 4.5.13 GPIO Mapping
      14. 4.5.14 Power
        1. 4.5.14.1 Power Requirements
        2. 4.5.14.2 Power Input
        3. 4.5.14.3 Power Supply
        4. 4.5.14.4 AM62A SoC Power
        5. 4.5.14.5 Current Monitoring
      15. 4.5.15 AM62A Low Power SK EVM User Setup and Configuration
        1. 4.5.15.1 Boot Modes
        2. 4.5.15.2 User Test LEDs
      16. 4.5.16 Expansion Headers
        1. 4.5.16.1 User Expansion Connector
        2. 4.5.16.2 MCU Connector
      17. 4.5.17 I2C Address Mapping
  8. 5Revision History

4.5.1.1 Peripheral Ref Clock

Clock inputs required for peripherals such as XDS110, FT4232, M.2 Interface, HDMI Transmitter and Audio Codec are generated locally using separate crystals or oscillators. Crystals or Oscillators used to provide the reference clocks to the EVM peripherals are shown in the table below.

Table 4-3 Clock Table
Peripheral Mfr.Part # Description Frequency
XDS110 emulator (Y4) XRCGB16M000FXN01R0 CRY 16.000MHz 8pF SMD 16.000 MHz
FT4232 Bridge (Y5) 445I23D12M00000 CRY12.000MHz 18pF SMD 12.000 MHz
M.2 Interface (U56) ECS-327MVATX-2-CN-TR OSC 32.768KHz CMOS SMD 32.768 KHz
Audio Codec (U86) MC2016Z12.2880C19XSH OSC12.288MHz CMOS SMD 12.288 MHz
HDMITransmitter (U9) MC2016Z12.2880C19XSH OSC12.288MHz CMOS SMD 12.288 MHz

The clock required by the HDMI Transmitter can be provided by either the on board oscillator or the SOC’s AUDIO_EXT_REFCLK1, which can be selected through a resistor mux. SOC’s EXT_REFCLK1 is used to provide clock to the User Expansion Connector on the SKEVM. The 32.768 KHz clock to the M.2 module is provided by default from WKUP_CLKOUT0 ball of AM62A SOC.