SPRUJA1A October   2023  – December 2025

 

  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 Device Information
    4. 1.4 EVM Revisions and Assembly Variants
    5. 1.5 Specification
  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  Power
      1. 2.3.1 Power Requirements
      2. 2.3.2 Power Input
      3. 2.3.3 Power Supply
      4. 2.3.4 Power Sequencing
      5. 2.3.5 AM62x SIP SoC Power
      6. 2.3.6 Current Monitoring
    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  Interface Mapping
    6. 2.6  Clocking
      1. 2.6.1 Peripheral Ref Clock
    7. 2.7  Reset
    8. 2.8  CSI Interface
    9. 2.9  Audio Codec Interface
    10. 2.10 HDMI Display Interface
    11. 2.11 JTAG Interface
    12. 2.12 Test Automation Header
    13. 2.13 UART Interface
    14. 2.14 USB Interface
      1. 2.14.1 USB 2.0 Type A Interface
      2. 2.14.2 USB 2.0 Type C Interface
    15. 2.15 Memory Interfaces
      1. 2.15.1 OSPI Interface
      2. 2.15.2 MMC Interfaces
        1. 2.15.2.1 MMC0 - eMMC Interface
        2. 2.15.2.2 MMC1 - Micro SD Interface
        3. 2.15.2.3 MMC2 - M.2 Key E Interface
      3. 2.15.3 Board ID EEPROM
    16. 2.16 Ethernet Interface
      1. 2.16.1 CPSW Ethernet PHY 1 Default Configuration
      2. 2.16.2 CPSW Ethernet PHY 2 Default Configuration
    17. 2.17 GPIO Port Expander
    18. 2.18 GPIO Mapping
    19. 2.19 OLDI Display Interface
    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 Known Hardware or Software Issues
      1. 5.1.1 Issue 1 - OLDI Display Touch Broken
    2. 5.2 Trademarks
    3.     75
  11. 6Revision History

2.6 Clocking

The figure below shows the clocking architecture of the AM62x SIP SK EVM.

SK-AM62-SIP Clock Architecture Figure 2-9 Clock Architecture

A clock generator of part number LMK1C1103PWR is used to drive the 25MHz clock to the SoC and two Ethernet PHYs. LMK1C1103PWR is a 1:3 LVCMOS clock buffer, which takes the 25MHz crystal/LVCMOS reference input and provides three 25MHz LVCMOS clock outputs. The source for the clock buffer shall be either the CLKOUT0 pin from the SoC or a 25MHz oscillator; the selection is made using a set of resistors. By default, an oscillator is used as input to the clock buffer on the AM62x SIP SKEVM. Output Y2 and Y3 of the clock buffer are used as reference clock inputs for two Gigabit Ethernet PHYs.

There is one external crystal attached to the AM62x SIP SoC to provide clock to the WKUP domain of the SoC (32.768KHz).

SK-AM62-SIP SoC WKUP Domain Figure 2-10 SoC WKUP Domain