I was wondering whether anyone has a reference to serial(RS 232) operations. I understand most of the data part but have no clue on it's steps during initialization. The nego. between PC and Palm to identify it's transmission characteristic is quite puzzling.Somehow it is able to identify the number of bits , non parity and start and stop bits. Thanks, John __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist