speaking of the f84 being easier to use cause it's simpler: Is there a table somewhere that lists, for each PIC, the default (power-up) usage of each pin? This doesn't seem to be very obvious from the data sheets (or I'm missing something - it took me an embarassingly long time to figure out which peripheral was interfering with using some of the GPIO pins on a 16F675 as outputs (the data sheet is pretty clear when you have to turn off a peripheral or change tris to switch between digital and analog inputs, but it's not so clear which special functions interfere with digital output...) Thanks Bill W -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads