Can the 16f628 portb configured so that "interrupt on change" is enabled and RB6 and RB7 is configured for 32768 xtal? =20 I will only be using the RB4 and RB5, but since RB7 is T1OSI (osc input), do I get an interrupt because it is connected to xtal? regards, Omer YALHI -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.