topic Question about RMII connection on RT1050EVKB in i.MX RT Crossover MCUs

Question about RMII connection on RT1050EVKB

giuseppescarpi — Thu, 10 May 2018 08:49:07 GMT

I am studying the schematic of the new (A1) version of the RT1050 EVK board.

The schematic shows the signal ENET_CRS_DV coming from the PHY to MCU pin C12, which is described as "ENET_RX_EN". On the other hand, signal ENET_INT goes to G13, which can be associated to ENET_CRS.

So I wonder if these two signals are swapped, or if there is something I am missing (quite possible, I'm not an expert of Ethernet).

Hints and suggestions?

Giuseppe

Re: Question about RMII connection on RT1050EVKB

igorpadykov — Thu, 10 May 2018 23:10:55 GMT

Hi Giuseppe

for names of rmii signals and its usage may be useful also to look

How to use i.MX6SDL ENET_CRS_DV pad for CRS for RMII mode.

I think there is no swapping, ENET_INT is handled processor as gpio interrupt.

Best regards
igor
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Re: Question about RMII connection on RT1050EVKB

Johnrita — Mon, 22 Apr 2024 13:01:11 GMT

Hi, I was curious why does the Pin CRS_DV only selected on G13 but not C12, while EVB sch shows it located on C12?

Does it correct?