> It appears that my data sheet 40300B states that the MCLR pin is
> input/output when programmed as a digital pin. Even the port RA5
> schematic supports this.

I expect problems will arise when you configure the MCLR pin as an
output *and* the program makes it low. In that case rising /MCLR to Vpp
after Vcc will sult in an interesting battle between the Vpp source and
the PIC's sink FET. At least in my programmer the FET will win, but with
a progammer that can support EPROM PICs...

Wouter van Ooijen

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Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products

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