Hi: I would like to be able to use ICD2 for both programming and debugging in the 16F88 clock I'm working on without sacrificing 3 pins to ICD2. (1) Can I set Vpp/MCLR to internal MCLR and put a N.O. pushbutton switch on that I/O pin to gnd and still use ICD2 or must I give up this pin for I/O? (i.e. are the configuration bits related to only uC operation or do they have programming and debugging meaning? (3) If internal MCLR is selected can ICD2 be used in debugging only mode (i.e. Vpp will no longer be available)? (3) On the two (PGC & PCD) communications pins can I put a 100 K resistor to +5v and N.O. pushbutton switches to ground and still use ICD2? Thanks for any thoughts, Brooke Clarke -- w/Java http://www.PRC68.com w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml http://www.precisionclock.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist