We are running a loopback test on our device which has the W5200.
Our device will send data to a script running on a PC, which then sends the data back to the device.
But we have found that the test still passes when we swap the TX+ and TX- lines on our cable.
We also swapped the RX+ and RX- lines and the test still passes.
I know some Ethernet transceivers have polarity detection and correction built in.
Does the W5200 have that feature? There’s nothing listed in the datasheet.