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Does the watchdog timer operate in wait mode?

Latest Updated:12/07/2004

Question:

(Watchdog Timer)  Does the watchdog timer operate in wait mode? [2004/12/07]

Answer:

Yes, it does. Although the CPU stops in wait mode, the majority of peripheral functions are operational.
When using the watchdog timer, you should write to the watchdog timer control register before the watchdog timer underflows, even while in wait mode. You can use a timer to return regularly from wait mode in a shorter period of time than the watchdog cycle to write to the watchdog timer control register. Other methods are possible. (#104918)
Suitable Products
3803H
3803L
3823
3850A
3858
38D2
38D5
7544
7545
7546
7547
7548
7549