I apologize gents if I confused you, got my diode terms mixed up. Its the cathode of the LED I have connected to RA4, anode to 1K resistor then to +5V. So if the pin pulls down then I don't have to change anything. I will check out DS39647A, I wasn't aware that document existed. Thanks for the info, guys. Regards, Bob -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist