In SX Microcontrollers, SX/B Compiler and SX-Key Tool, william wrote:

Phil,

If I were to use a slow 2400 baud rate, would I need to increase the termination capacitance to 0.1 uF?
If the cable is short, termination becomes unnecessary right?
If I use CAT-5e cables, would the impedance still be 120 ohms?
I still like the idea of using only 1 pair of pins and let the software switch between input and output modes.

What is the usual protocol used to decide whose turn to talk?

Thanks.

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