This is hot off the press. . .

If you are using the 12c508 (509?), and put it to sleep one of the I/Os will
revert from an output to an input.

I did not get all of the particulars from the FAE due to the fact that I am
not using the SLEEP feature, so the above is all I know about this problem.
I checked on the Microchip homepage and there is no errata sheet, as of yet.
I suppose if you are working with the 12Cxxx series you should get on the
horn and talk to the apps engineers and see if it applies to you. . .

Dave
David Brobst
Solutions Cubed
3029 Esplanade #F
Chico, CA 95973
Phone:  916-891-8045
Fax:  916-891-8045