Thanks Jinx,

I have read the section in the midrange manual (now) and it makes things a
bit clearer. Still, if anyone has any actual figures for startup time that would
be interesting. I realise PIC oscillator design is a bit of a black art.

For this application I could even try something weird like a combination of
startup on RC oscillator then power up a 11.0592MHz crystal (used for IRDA
chip) divide by six to give 1.8432MHz when I need it, use some fancy logic
switching to get this to the micro, then go to sleep again. That way I get
instant startup from sleep and a good clock for baud rates when I need it.
Main problem I can see is that RC mode does not easily allow for external
clock in.

> > Does anyone have any figures for oscillator startup time using
> > a 4MHz ceramic resonator? Comparison to times for RC or
> > crystal would be great.
>
> Hi Brent, Section 2 of the Mid-range Manual has some info on this
>
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