DM8168 GMII interface for MAC

Dear All:

        As the Figure.10, we want to use GMII interface for MAC.

        But after we test, there is nothing output from the GMII_GTXCLK.

Question:

        Should we have to use EMAC_TXCLK pin? (Now the EMAC_TXCLK does not connected.)

Best Regards,

Justin