Note that 19.6608 Mhz is evenly dividable with all powers of 2 up to (at least) 2**16. E.g. 19.6608 Mhz / 65536 = 300 Hz. (This is not so for 20.0000 Mhz) This can be very handly when writing such things as timed loops or setting the values for the timers... Best regards Jan-Erik Svderholm S:t Anna Data tel : +46 121 42161 mob : +46 70 5241690 -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body