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On Fri, 19 Feb 2010 13:18:47 -0800
Barry Gershenfeld <gbarry42@gmail.com> wrote:

> On Sat, Feb 13, 2010 at 11:35 PM, Christopher Head <headch@gmail.com>
> wrote:
> 
> >
> > My question is thus: when running on INTCKO, does RA6 see one
> > quarter the EC or one quarter of the INTOSC? I'm hoping to use
> > INTOSC/4 as a clock for other devices in the circuit as a way of
> > avoiding installing a separate crystal or oscillator altogether.
> >
> 
> As I understand it, Fosc is always the clock that goes to the
> processor, and Fosc/4 is that same clock divided by 4.  So I conclude
> that CLKO is always going to reflect the clock that is selected to go
> to the processor.  I should say, "ultimately selected", since figure
> 2-1 shows there are quite a few switches between the oscillators and
> the processor (and other destinations).
> 
> It appears it will give you what you want.  I haven't actually tried
> it, though.
> 
> Barry

I subsequently had a chance to scope it, and I did indeed find an ~2MHz
square wave coming out of OSC2, so it looks like what you said (and I
hoped) is true.

Chris
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