17.4.2.1.4 Watchdog Timer Reset (WDTR)

A WDTR event is synchronized with the system clock (SYS_CLK), before asserting the SYSRST.

The RNMICON.WDTR flag is going to be set if there is a WDT event when in the CPU Run mode. The device Reset happens after the NMI counter expires and RCON.WDTO flag is set.

A WDT timeout during the Standby Sleep or Idle mode is going to wake up the processor. The WDTR flag will be set if there is a WDT event. The RNMICON.WDTS flag will be set if there is a WDT event during the Standby Sleep/Idle mode (WDTS). The WDTS flag triggers the NMI interrupt, but does not start the NMI counter, nor cause a device Reset. There is no affect on the RCON.WDTO bit. See Power Management Unit (PMU) for power modes from Related Links.