Guntupalli, Manikanta wrote 2023-05-02 12:14:
> + txrx-gpios:
> + description: Optional GPIO to switch transmit and receive modes via
pmod.
What's pmod?
Pmod is galvanically-isolated RS-485/RS-422 transceivers with a
built-in isolated DC-DC converter, that eliminates the need for a
separate isolated power supply in space constrained isolated designs.
AFAIK Pmod is an open standard connector by Digilent and present on many
Xilinx
demo boards. It does not involve any galvanic isolation.
https://digilent.com/reference/_media/reference/pmod/pmod-interface-specification-1_3_1.pdf
The ISOW14x2 on the particular board you're using does however give
isolation.
But you cannot name that board Pmod.
Maarten
