SLVSD43C May 2015 – February 2019 TPS7B68-Q1
On power up and during normal operation, the watchdog initializes under the conditions shown in Table 2.
|EDGE||WHAT CAUSES THE WATCHDOG TO INITIALIZE|
|↑||Rising edge of PG (power good) while the watchdog is in the enabled state, for example, during soft power up|
|↓||Falling edge of WD_EN while PG is already high, for example, when the microprocessor enables the watchdog after the device is powered up|
|↑||Rising edge of WDO while PG is already high and the watchdog is in the enabled state, for example, right after a closed window is serviced|