source=3Dhttp://www.piclist.com/postbot.asp?id=3Dpiclist\2002\08\15\08052= 9a I had a thought on this. It should be possible to multiplex Vdd with = MCLR. A diode/capacitor combination on-chip could keep the processor = powered up for very short periods of time while MCLR was asserted. --Brendan PIC/PICList FAQ: http://www.piclist.com -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.