9.5 Windowed Watchdog Timer (WWDT) Reset
The Windowed Watchdog Timer generates a Reset if the firmware does
not issue a CLRWDT
instruction within the time-out
period or window set. The TO and
PD bits in the STATUS register and the
RWDT bit are changed
to indicate a WDT Reset. The WDTWV bit indicates if the
WDT Reset has occurred due to a time-out or a window violation.