18.4.2 Watchdog Reload

In normal operation, the user reloads the watchdog at regular intervals before the down counter reaches 0, by configuring WDT0_CR.WDRSTT=1 or WDT1_CR.WDRSTT=1 with the correct KEY field. The watchdog counter is then immediately reloaded with the PERIOD value and restarted, and the MD_SLCK PRESC divider is reset and restarted. Writing WDT0_CR or WDT1_CR with an incorrect key raises an error flag.

Writing WDT0_MR, WDT0_WLR or WDT0_ILR immediately reloads the counter from PERIOD and restarts the MD_SLCK PRESC divider of WDT0.

Writing WDT1_MR, WDT1_WLR or WDT1_ILR immediately reloads the counter from PERIOD and restarts the MD_SLCK PRESC divider of WDT1.