SNVSC07A June 2021 – September 2022 LP876242-Q1
PRODUCTION DATA
In case the MCU needs to be reprogrammed while the watchdog monitors the correct operation of the MCU, the MCU can set bit WD_RETURN_LONGWIN to put the watchdog back in the Long Window. When the MCU set this bit, the watchdog returns to the Long Window after the current Watchdog Sequence completes. In order to make the watchdog stay in the Long Window as long as needed the MCU can either re-configure the Long Window (tLONG_WINDOW) time interval, or set the WD_PWRHOLD bit. Once the MCU starts the first watchdog sequence (as described in Section 7.3.8.3), the MCU must clear bit WD_RETURN_LONGWIN before the end of the first watchdog sequence in order to continue the watchdog sequence operation.