UART touch screen controller how to?

Hi I’m a novice in programming and I have a big problem.
I need to make a touch screen controller for my Rabbit RCM 3000 board via UART one wire communication. The old controller that I hade was designed with a freescale 8 bit 8 pin mcu that communicated with the board via the one of it’s serial ports(only the Rx part of the board no handshake no nothing) Can somebody please help me?
Thank you for your time

You might find some useful info here:

They implemented 1-wire on a Rabbit 3000 based system.

There is also an RCM4300 based 1-wire sensor kit

But I don’t see the libraries from it available anywhere on the Digi site.