Hi Doug McClean,
So, do you intend to use the UART Component in Half Duplex mode using a single pin connected to the Rx and the Tx pin?
No, I use the UART like this:
With a schematic macro like this:
Which sets up the in/out pin like this:
In accordance with instructions I found in http://www.atmel.com/dyn/resources/prod_documents/doc2579.pdf (see page 3 et seq.).
Really a verilog synthesizable one-wire master would probably be better if someone is going to make a professional version for everyone to use, but I am far from an expert.
It turns out that Maxim provides (free of charge, even), a synthesizable 1-Wire bus master implementation in both Verilog and VHDL formats.
I'm working on learning how to wrap this up in a PSoC Creator component.