On Mon, 2010-05-03 at 08:09 -0700, Harold Hallikainen wrote:
> > Peter Feucht wrote:
> >> A general question about MCLR pins with newer PICs:
> >>
> >> They allow to use the MCLR pin as usual I/O-pin.
> >
> > No, they don't.  The MCLR pin can sometimes be configured as a digital
> > input, but never a output as far as I know.
> >
> 
> Following up on this (I know I need to read the datasheet...), since MCLR
> is also used for Vpp on most (all?) chips, it seems that any other devices
> on this pin would need to tolerate Vpp during in circuit programming.

Unless in circuit programming using "normal" means isn't part of the
design of course, i.e. using a boot loader.

TTYL

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist