ADAU1467 SPI clock Selfboot


ADAU1467 works as SPI master when selfboot is enabled, but how to configure SPI clock frequency for the SPI master?

I tried to look through 1467 datasheet and past EZ threads, but couldn't find it.



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    •  Analog Employees 
    on Jan 19, 2021 1:23 AM in reply to Ken.M

    Thanks Ken-san,

    I just want to understand how the selfboot function(state machine) works.

    As far as I checked with 1467 EVB and SigmaStudio 4.6, Actual SPI clock monitored by a scope

    - During Selfboot write      : around 10M regardless of "Write Speed" setting, 

    - Selfboot enabled(read)   : around 10k if "Write Speed" was below 1,000k

    - Selfboot enabled(read)   : around 500k if "Write Speed" was 10,000k 

    Could you clarify this?