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Original question:

AM2432: Unexpected GPIO behavior after SPI boot

AM2432: SPI boot mode vs xSPI boot mode

Tomoya Oyama
Intellectual 340 points
Part Number: AM2432


Tool/software:

Hi team,

I develop my custom board with AM2432.

The schematics is designed assuming that booting is performed using SPI flash (1S-1S-1S).

Therefore, I think that SPI boot mode should be used,

but xSPI boot mode has a faster startup time than SPI boot mode.

What is the difference between SPI and xSPI boot modes?

Best regard

oyama

  • +1
    TI__Genius 15605 points

    Hi Oyama,

    You can consider xSPI as an enhanced standard built upon traditional SPI. As you mentioned it will have a faster boot time as it can achieve higher transfer rates compared to traditional SPI. xSPI boot mode supports 1S-1S-1S mode. You can refer to chapter 4.4.1 of TRM for more details on these boot modes.

    Best Regards,

    Meet.