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[FAQ] AM623: SPI DATA MISO/MOSI usage for D0 / D1

Martin Stelter
Prodigy 40 points
Part Number: AM623

SPI data pins are named as D0 and D1. Where can i find information about the usage regarding in/output or which one is MISO / MOSI?

  • 0
    TI__Guru**** 156679 points

    Hello Martin Stelter

    Thank you for the query.

    Please refer to the below explanation and the sections in the TRM.

    5.4.1.4.1 SPI Bootloader Operation
    Please refer to Section 5.4.1 for more information that applies to SPI boot mode
    The SPI boot mode supports the 1S-1S-1S mode only. The Read Command is 8-bits (0x03) followed by a 24 bit (3 byte) address. There are no dummy cycles issued after the read command. The frequency of operation supported is 6.250 MHz. OSPI0_D0 will have data transfers FROM the processor TO the flash device, and OSPI0_D1 will have data transfers TO the processor FROM the flash device

    12.2.3.2.1 Basic MCSPI Pins for Controller Mode
    12.2.3.2.2 Basic MCSPI Pins for Peripheral Mode

    Pls let me know if this helps.

    Regards,

    Sreenivasa