SLVUAW9C September 2016 – February 2020 UCD90320
The STORE_DEFAULT_ALL command saves the PMBus parameters from Operating Memory into the Default Store in Data Flash. The UCD90320 uses the most recently written set of Default Store values at startup or after a RESTORE_DEFAULT_ALL command. If the Default Store has never been written, values from the hard-coded memory are used.
NOTE
The device configuration will be corrupted if a power cycle or a reset occurs before this save operation is completed. To ensure a successful save operation, after writing the STORE_DEFAULT_ALL command, wait for the STORE_DEFAULT_ALL_DONE bit to be set (see the MFR_STATUS). Once that bit is set, check the STORE_DEFAULT_ALL_ERROR bit. If the STORE_DEFAULT_ALL_DONE bit is set and the STORE_DEFAULT_ ALL_ERROR is not set, the operation was successful.
NOTE
Monitoring and other tasks (including PMBus communication) are not performed during this save operation which may take up to 100 milliseconds.