Dennis Plunkett wrote:
>Nasty stuff using  a second xtal to do the wakeup. What do you do if the
>second xtal fails?
>This method has been used often before, and more times than not it produces
>troubles (I can think of a Sony micro that produced some problems with a
>second low speed xtal and wakeup)
>


This may be wishful thinking on my part, but since Mchp specifically
designed this scheme into their chips, I would think they had previously
considered the question of reliability.

- danM

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