There is a problem if you use the watchdog and a 32kHz crystal afair. The
watchdog may trip (several times) before the crystal is working properly.
This will cause your program to jump to the start instead of waking from
sleep. If you don't use the watchdog and there is no proper reset circuit
(chip) then startup may be a coin-flipping problem.

Peter

On Thu, 27 Jun 2002, Mike Harrison wrote:

>Anyone have any good/bad experience with a 12C508 run off a 32K watch
>crystal, using the wake on pin-change feature?
>Does the slow startup of these xtals cause any problem.
>I'm looking at a possible application & was wondering if it is likely
>to work reliably - I don't care if the clock isn't too stable
>immediately after wakeup and it isn't a problem if the wakeup takes a
>few seconds - I just want to be sure it always wakes up.
>
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