Or, using your words, yes, the TMR0 uses the
"event clock frequency", more commonly called
"instruction cycle", which is Fosc/4.

I'm sorry, I was a bit fast in my former post...
:-)

Jan-Erik.

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Jan-Erik Soderholm XA
(TN/PAC)
Sent: den 29 oktober 2003 18:43
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [PIC:] RTC and Prescaler General Question


Martin McCormick wrote:

> I understand that the oscillator in a PIC is divided by 4 to
> get the event clock frequency.  Is the input for TMR0 and its optional
> prescaler the oscillator frequency or the event clock frequency?


Fosc/4, wich is perfectly clear from the "block diagram" of
TMR0 from a data sheet from just about any PIC (that has a TMR0,
of course)...

Jan-Erik.

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