Hi, The PIC16F88 Manual, on the first page, says that the oscillator pins are not bidirectional (pin diagram), but the pin listing, says that ALL pins are bidirection, including MCLR, wich one is right? Mauricio -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist