SPRUJ40C may   2022  – may 2023

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1EVM Revisions and Assembly Variants
  5. 2System Description
    1. 2.1 Key Features
      1. 2.1.1 Thermal Compliance
      2. 2.1.2 Processor
      3. 2.1.3 Power Supply
      4. 2.1.4 Memory
      5. 2.1.5 JTAG/Emulator
      6. 2.1.6 Supported Interfaces and Peripherals
      7. 2.1.7 Expansion Connectors/Headers to Support Application Specific Add‐On Boards
    2. 2.2 Functional Block Diagram (SK-AM62 and SK-AM62B)
    3. 2.3 Functional Block Diagram (SK-AM62-P1 and SK-AM62B-P1)
    4. 2.4 AM62x SKEVM Interface Mapping
    5. 2.5 Power ON/OFF Procedures
      1. 2.5.1 Power-On Procedure
      2. 2.5.2 Power-Off Procedure
      3. 2.5.3 Power Test Points
    6. 2.6 Peripheral and Major Component Description
      1. 2.6.1  Clocking
        1. 2.6.1.1 Peripheral Ref Clock
      2. 2.6.2  Reset
      3. 2.6.3  OLDI Display Interface
      4. 2.6.4  CSI Interface
      5. 2.6.5  Audio Codec Interface
      6. 2.6.6  HDMI Display Interface
      7. 2.6.7  JTAG Interface
      8. 2.6.8  Test Automation Header
      9. 2.6.9  UART Interface
      10. 2.6.10 USB Interface
        1. 2.6.10.1 USB 2.0 Type A Interface
        2. 2.6.10.2 USB 2.0 Type C Interface
      11. 2.6.11 Memory Interfaces
        1. 2.6.11.1 DDR4 Interface
        2. 2.6.11.2 OSPI Interface
        3. 2.6.11.3 MMC Interfaces
          1. 2.6.11.3.1 MMC0 - eMMC Interface
          2. 2.6.11.3.2 MMC1 - Micro SD Interface
          3. 2.6.11.3.3 MMC2 - Wilink Interface
        4. 2.6.11.4 EEPROM
      12. 2.6.12 Ethernet Interface
        1. 2.6.12.1 CPSW Ethernet PHY 2 Default Configuration
        2. 2.6.12.2 CPSW Ethernet PHY 1 Default Configuration
      13. 2.6.13 GPIO Port Expander
      14. 2.6.14 GPIO Mapping
      15. 2.6.15 Power
        1. 2.6.15.1 Power Requirements
        2. 2.6.15.2 Power Input
        3. 2.6.15.3 Power Supply
        4. 2.6.15.4 Power Sequencing
        5. 2.6.15.5 AM62x SoC Power
        6. 2.6.15.6 Current Monitoring
      16. 2.6.16 AM62x SKEVM User Setup/Configuration
        1. 2.6.16.1 EVM DIP Switches
        2. 2.6.16.2 Boot Modes
        3. 2.6.16.3 User Test LEDs
      17. 2.6.17 Expansion Headers
        1. 2.6.17.1 PRU Connector
        2. 2.6.17.2 User Expansion Connector
        3. 2.6.17.3 MCU Connector
      18. 2.6.18 Interrupt
      19. 2.6.19 I2C Address Mapping
  6. 3Known Issues and Modifications
    1. 3.1  Issue 1 - HDMI/DSS Incorrect Colors on E1
    2. 3.2  Issue 2 - J9 and J10 Header Alignment on E1
    3. 3.3  Issue 3 - USB Boot descoped on E1
    4. 3.4  Issue 4 - OLDI Connector Orientation and Pinout
    5. 3.5  Issue 5 - Bluetooth descoped on E2 EVMs
    6. 3.6  Issue 6 - Ethernet PHY CLK Skew Default Strapping Changes
    7. 3.7  Issue 7 - TEST_POWERDOWN changes
    8. 3.8  Issue 8 - MMC1_SDCD spurious interrupts
    9. 3.9  Issue 9 - PD Controller I2C2 IRQ Not Pinned Out
    10. 3.10 Issue 10 - INA Current Monitor Adress Changes
    11. 3.11 Issue 11 - Test Automation I2C Buffer Changes
  7.   Regulatory Compliance
  8.   Revision History

2.6.1.1 Peripheral Ref Clock

Clock inputs required for peripherals such as XDS110, USB HUB, FT4232, 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 bellow.

Table 2-3 Clock Table
Peripheral Mfr. Part No. Description Frequency
XDS110 emulator ECS-.327-9-34QCS-TR CRY 32.768 KHz 9pF SMD 32.768 KHz
FT4232 Bridge ECS-120-18-30B-AGN-TR CRY 12.000 MHz 18pF SMD 12.000 MHz
Audio Codec KC2520Z12.2880C1KX00 OSC 12.288 MHz CMOS SMD 12.288 MHz
USB HUB (E1 Only) ECS-240-20-30B-AGL-TR CRY 24.000 MHz 20pF SMD 24.000 MHz
HDMI Transmitter KC2520Z12.2880C1KX00 OSC 12.288 MHz 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 KHz clock to the Wilink module is provided by WKUP_CLKOUT0 of AM62x SoC through a voltage translational buffer.