The (21h) VOUT_COMMAND value and the corresponding output voltage can be reset to the last selected power-on reset value set by VSEL or EEPROM as selected in the (EEh) MFR_SPECIFIC_30 (PIN_DETECT_OVERRIDE) command when the PGD/RST_B pin function is set to RESET# in the (EDh) MFR_SPECIFIC_29 (MISC_OPTIONS) PMBus command. To reset (21h) VOUT_COMMAND to its last power-on reset value, when the RESET# optional function is enabled, assert the PGD/RST_B pin low externally. While RESET# is asserted low, (21h) VOUT_COMMAND values received through PMBus are ACKed but no change in (21h) VOUT_COMMAND is made. When RESET# is selected in (EDh) MFR_SPECIFIC_29 (MISC_OPTIONS), an internal pullup on the PGD/RST_B pin can be selected by the PULLUP# bit in the same PMBus command to eliminate the need for an external pullup with the RESET# function.

Figure 8-7 TPSM8S6C24 Output Voltage Reset