On Mon, Jun 09, 2003 at 10:00:14PM +0200, Igor Pokorny wrote:
> I have a problem to wake PIC 16F877 up by signal on RB0 in the right time.
> The datasheet told me it was about 250 uS (4MHz clock, PWRTE not set). It's
> about 4 mS by my measurement. What do I miss?

There's a delay for the oscillator to start up if you use an external
crystal.  There's no delay in the RC and internal clock modes.  Read the
osc section of the datasheet for the gory details.

--
Ben Jackson
<ben@ben.com>
http://www.ben.com/

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