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imx8mm pcie ref clock

Question asked by seungmin shin on Mar 5, 2020
Latest reply on Mar 9, 2020 by igorpadykov



I develop a board based on IMX8MM.

Board is var-som-mx8m-mini.


This board is connected to intel ethernet controller i210-AT chip.

then, this chip is connected to PCIE#A_REFCLK100M_N, PCIE#A_REFCLK100M_P.


But, I can not use this signal. clock output of this pin is nothing.

How to use a reference clock output for PCIE?

Is this possible to use?