SLUSDF9 June 2020 BQ25790
Beside the register reset by the watchdog timer in the default mode, the register and the timer could be reset to the default value by writing the REG_RST bit to 1. The register bits, which can be reset by the REG_RST bit, are noted in the Register Map section. After the register reset, the REG_RST bit will go back from 1 to 0 automatically.
The register reset by the REG_RST bit will not initiate the ACFET-RBFET detection, which is only done at the charger first time POR. It will not repeat the open-circuit adapter measurements for the default VINDPM setting, which in only done when an adapter is plugged in. In addition, if the charger is in the process of forced ICO, the forced open-circuit adapter measurements or the forced D+/D- detection, set the REG_RST to 1 will terminate all of these processes, because reset the register to default values will set FORCE_ICO, FORCE_INDET and FORCE_VINDPM_DET bits to 0.