Fujitsu F2MC-16LX Hardware Manual page 237

CHAPTER 10 WATCHDOG TIMER
Reference:
When the watchdog timer is activated, it is initialized and set to the stopped state by a reset upon
power-on or by a reset by the watchdog. Also, the watchdog counter is cleared by writing to the reset
by the external pin, the software reset, and the watchdog control bit (WTE) of the watchdog timer
control register and by changing to sleep, stop, and watch mode, but the watchdog timer is still
activated.
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