At 08:11 AM 4/10/03 -0500, Alex Kilpatrick wrote: > > > > You are correct; RTCC (Real Time Clock/Counter) is what > > Microchip used to call TMR0. > >In modern usage, doesn't "real-time clock" mean something that either >keeps "clock time" or a large count of seconds (with fractions) that can >be converted to clock time? I am thinking of the DS1994 real-time clock >iButton and similar devices. Perhaps. But Microchip's usage of that term was accurate - by using that timer, one could write code that kept track of real time accurate to within 1 clock cycle over a period of years. Have a look at the app note that describes Microchip's version of a clock radio controller (alarm clock) for some of the techinques used. This would have been much more difficult without that timer. dwayne -- Dwayne Reid Trinity Electronics Systems Ltd Edmonton, AB, CANADA (780) 489-3199 voice (780) 487-6397 fax Celebrating 19 years of Engineering Innovation (1984 - 2003) .-. .-. .-. .-. .-. .-. .-. .-. .-. .- `-' `-' `-' `-' `-' `-' `-' `-' `-' Do NOT send unsolicited commercial email to this email address. This message neither grants consent to receive unsolicited commercial email nor is intended to solicit commercial email. -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body