Jinx wrote: > I did read the section you quoted, but it isn't what I'd call > "explicit". That section isn't, but others are. The portc pins table on the next page explicitly describes the RC4 and RC5 roles for those pins as digital inputs. Note 1 below table 10.6 on the following page additionally says "RC5 and RC4 are only available as port pins when the USB module is disabled (UCON<3> = 0)." ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist