SLUSDU0 September 2019 BQ21061
The BQ21061 integrates a 14-second watchdog timer that makes the BQ21061 perform a HW reset/power cycle if no I2C transaction is detected within 14 seconds of a valid adapter being connected. If the adapter is connected and the host responds with an I2C transaction before the 14-second watchdog window expires, the part continues in normal operation. The 14-second watchdog is disabled by default and may be enabled through I2C by setting the HWRESET_14S_WD bit. Figure 22 shows the basic functionality of this feature.