http://www.piclist.com/faq under Routines / code library / Input/Output in the IO section, see the serial mux and other code. --- James Newton mailto:jamesnewton@geocities.com 1-619-652-0593 http://techref.massmind.org NEW! FINALLY A REAL NAME! Members can add private/public comments/pages ($0 TANSTAAFL web hosting) -----Original Message----- From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Edson Brusque Sent: Friday, March 17, 2000 05:19 To: PICLIST@MITVMA.MIT.EDU Subject: Interrupt driven serial input routine Hello, Someone here have a bit-banging serial (RS232) input routine that works from a timed interrupt? Say at each 312us for 9600 bps? Best regards, Brusque