I'm in the process writing an application that needs to receive data via an RS-232 connection, but needs to do other work between receptions. Is it okay for me to drop the CTS line while it's not watching for incoming data? If so, when I raise the CTS, how long do I need to wait for pending data to be sent (if the sending UART already has the data queued by the PC)? Will "working" the CTS line like this create too much noise or have any other side effects? Thanks, Mitch P.S. I plan on communicating at 9600 baud (104us bit time) and would raise the CTS anytime the software can't monitor the RX line every 10us. ------------------------------------ Mitch Miller, Roseville, CA mitchm@ns.net ------------------------------------