> I'm not going to look up the actual page > number for you. I *know* it's there... :-) but probably not in the midrange reference manual: IIRC that dcoument is older than the first PICs with calibration memory. Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: www.voti.nl/hvu -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist