Ok,

The votes in and the unanimous opinion of the list is that RTS/CTS are not
bi-directional. I believe I can go forward armed with this information ( as
far as hardware design ).  On the software side, it's obvious that I need
to bone up on hardware handshaking before proceeding.  I think, as
mentioned by Ian, it will depend on whether the PIC is to be implemented as
DTE or DCE.

Thanks so much for your help,
Eric

-----Original Message-----
From:   Mike Keitz [SMTP:mkeitz@JUNO.COM]
Sent:   Wednesday, April 07, 1999 9:03 AM
To:     PICLIST@MITVMA.MIT.EDU
Subject:        Re: More RS232 to PIC questions

On Tue, 6 Apr 1999 17:39:44 -0500 Eric Oliver <eric@KEDCOENT.COM> writes:

>  I have to implement RTS/CTS handshaking so I began
>studying the
>specifics and it turns out the RTS and CTS are both IO.  So I began
>thinking . How can I implement both input and output

You are mistaken.  All RS-232 lines are one direction.  RTS is always out
of the PC and CTS is always in.  So connect the PC's RTS line to a
receiver in your circuit and the CTS line to a transmitter.



___________________________________________________________________
You don't need to buy Internet access to use free Internet e-mail.
Get completely free e-mail from Juno at http://www.juno.com/getjuno.html
or call Juno at (800) 654-JUNO [654-5866]