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UCD9240

Tony51646
Intellectual 270 points
Other Parts Discussed in Thread: UCD9240

Hi,

    I have a question about the configuration of UCD9240.

    After I configured UCD9240, the data was stored inside UCD9240 and I don't need to configure it again for next power up.

   Is my understanding right?

 

Thanks,

  • 0
    TI__Intellectual 1755 points

    Tony,
    You are correct.  The UCD92xx devices follow the PMBus standard.  It states that the device is configured by writing to volatile registers/memory, then when you are satisfied with the configured operation of the controller, you store all these settings to non-volatile memory and they are applied on the next power-up.  The PMBus command to do this is called STORE_DEFAULT_ALL.

    When using the Fusion Digital Power Designer program, you write to the volatile registers by clicking the "Write to Hardware" button.  To permanently store the settings to non-volatile memory, cliick the "Store RAM to FLASH"  button.