>Yeah, but you still have to turn off your transmitter when you receive. >That's the whole point off the 2-wire half-duplex link. but after you receive the last character you know you transmitted, you know you can turn off the transmitter. It gives you a one character turn around delay maybe. It saves having to know when to turn on the receiver -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu