SPRUJ63A September   2022  – October 2023

 

  1.   1
  2.   Trademarks
  3. 1Introduction
    1. 1.1 EVM Revisions and Assembly Variants
    2. 1.2 Inside the Box
  4. 2Important Usage Notes
    1. 2.1 Power-On Usage Note
    2. 2.2 EMC, EMI, and ESD Compliance
  5. 3System Description
    1. 3.1 Key Features
    2. 3.2 Functional Block Diagram
    3. 3.3 Power-On/Off Procedures
      1. 3.3.1 Power-On Procedure
      2. 3.3.2 Power-Off Procedure
    4. 3.4 Peripheral and Major Component Description
      1. 3.4.1  Clocking
        1. 3.4.1.1 Ethernet PHY Clock
        2. 3.4.1.2 AM64x/AM243x Clock
        3. 3.4.1.3 PCIe Clock
      2. 3.4.2  Reset
      3. 3.4.3  Power
        1. 3.4.3.1 Power Input
        2. 3.4.3.2 Reverse Polarity Protection
        3. 3.4.3.3 Current Monitoring
        4. 3.4.3.4 Power Supply
        5. 3.4.3.5 Power Sequencing
        6. 3.4.3.6 AM64x/AM243x Power
      4. 3.4.4  Configuration
        1. 3.4.4.1 Boot Modes
      5. 3.4.5  JTAG
      6. 3.4.6  Test Automation
      7. 3.4.7  UART Interfaces
      8. 3.4.8  Memory Interfaces
        1. 3.4.8.1 DDR4 Interface
        2. 3.4.8.2 MMC Interfaces
          1. 3.4.8.2.1 Micro SD Interface
          2. 3.4.8.2.2 eMMC Interface
        3. 3.4.8.3 OSPI Interface
        4. 3.4.8.4 SPI EEPROM Interface
        5. 3.4.8.5 Board ID EEPROM Interface
      9. 3.4.9  Ethernet Interface
        1. 3.4.9.1 DP83867 PHY Default Configuration
        2. 3.4.9.2 DP83869 PHY Default Configuration
        3. 3.4.9.3 Ethernet LED
      10. 3.4.10 Display Interface
      11. 3.4.11 USB 2.0 Interface
      12. 3.4.12 PCIe Interface
      13. 3.4.13 High Speed Expansion Interface
      14. 3.4.14 CAN Interface
      15. 3.4.15 Interrupt
      16. 3.4.16 ADC Interface
      17. 3.4.17 Safety Connector
      18. 3.4.18 SPI Interfaces
      19. 3.4.19 I2C Interfaces
      20. 3.4.20 FSI Interface
  6. 4Known Issues and Modifications
    1. 4.1 Issue 1 - Embedded XDS110 Connection to AM64x Target in CCS
    2. 4.2 Issue 2 - DC Barrel Jack Warning when Hot-Plugging
    3. 4.3 Issue 3 - uSD Card Boot Not Working
  7. 5References
  8. 6Revision History

3.4.8.1 DDR4 Interface

The EVM has 2GB, 16bit wide DDR4 memory with operating speed of up to 1600MT/s. Micron's MT40A1G16KD-062E:E is used. This uses two x8 8Gb Micron dies to make one x16. The DDR memory is mounted on-board (single chip). The placement and routing of the DDR4 device goes point to point with VTT termination. The DDR4 requires 1.2V and thus reduces power demand.

GUID-294D88CB-1B78-45A5-A84B-A41DBDEE430E-low.pngFigure 3-14 AM64x/AM243x DDR4 Interface