SPRUIF3B May   2017  – March 2019 DRA790 , DRA791 , DRA793 , DRA797

 

  1.   DRA79x EVM CPU board
    1.     Trademarks
    2. 1 Introduction
    3. 2 Overview
      1. 2.1 EVM System Configurations
      2. 2.2 CPU Board Feature List
      3. 2.3 CPU Board Component Identification
    4. 3 Hardware
      1. 3.1 Hardware Architecture
      2. 3.2 DRA71x, DRA79x, TDA2E-17, and AM570x Processor
      3. 3.3 Power Architecture
      4. 3.4 Reset Structure
      5. 3.5 Clocks
      6. 3.6 Memory
        1. 3.6.1  SDRAM Memory
        2. 3.6.2  QSPI Flash Memory
        3. 3.6.3  EMMC Flash Memory
        4. 3.6.4  MicroSD Card Cage
        5. 3.6.5  GPMC NOR Flash Memory
        6. 3.6.6  GPMC NAND Flash Memory
        7. 3.6.7  Boot Modes
        8. 3.6.8  JTAG/Emulator and Trace
        9. 3.6.9  UART Terminal
        10. 3.6.10 DCAN and CAN Interfaces
        11. 3.6.11 Universal Serial Bus (USB)
        12. 3.6.12 Wired Ethernet
        13. 3.6.13 Video Output
          1. 3.6.13.1 HDMI Display
          2. 3.6.13.2 LCD Touch Panel
          3. 3.6.13.3 FPD-Link III Output/Panel
        14. 3.6.14 Video Input
          1. 3.6.14.1 Parallel Imaging
          2. 3.6.14.2 Serial Imaging
        15. 3.6.15 Mini-PCIe
        16. 3.6.16 Media Local Bus (MLB)
        17. 3.6.17 Audio
        18. 3.6.18 COM8 Module Interface
        19. 3.6.19 eFuse Programming Supply
        20. 3.6.20 User Interface LEDs
        21. 3.6.21 Power Monitoring
        22. 3.6.22 I2C Peripheral Map
        23. 3.6.23 GPIO List
        24. 3.6.24 I/O Expander List
        25. 3.6.25 Configuration EEPROM
    5. 4 Signal Multiplex Logic
      1. 4.1 GPMC and QSPI Selection (MUX A)
      2. 4.2 GPMC, VIN1, and VOUT3 Selection (MUX B)
      3. 4.3 GPMC and EMMC Selection (MUX C)
      4. 4.4 VIN2A and EMU Selection (MUX D, MUX E)
      5. 4.5 VIN2A and RGMII1 Selection (MUX F)
      6. 4.6 RGMII0 and VIN1B Selection (MUX J)
      7. 4.7 SPI2 and UART3 Selection (MUX K)
      8. 4.8 DCAN2 and I2C3 Selection (MUX L)
    6. 5 USB3 Supported Configurations
      1. 5.1 Option 1
      2. 5.2 Option 2
      3. 5.3 Option 3
    7. 6 References
  2.   Revision History

3.6.1 SDRAM Memory

The EVM includes 2GB of DDR3L memory, and can operate at clock speeds up to 667 MHz (DDR3-1333). The memory is configured with four 4-Gb devices (x8b devices). ECC is supported.

  • DDR3L device used: Micron® MT41K512M8RH-125-AA:E (4× 8b at 4Gb/each) (or equivalent)
  • EEC device used: Micron MT41K512M8RH-125-AA:E (1× 8b at 4Gb) (or equivalent)

The DDR3L power is generated from the SoC power solution, and set to 1.35 V. It uses fly-by topology with VTT termination. VTT supply is generated using a sink/source termination regulator (TPS51200).

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