Using the handshaking lines for general input/output

This appendix describes how to use the CTS and RTS lines for input and output ports.

The I/O pins (CTS and RTS) can be read or set by the user as required, allowing unique protocols to be created, or they can simply be used as flags or enable lines.

If the user enables automatic handshaking as discussed in Using RTS/CTS and automatic handshaking, these pins cannot be accessed.