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SJA1105TEL RMII clock configuration

Question asked by Kim Slot on May 10, 2019
Latest reply on May 13, 2019 by Bulat Karymov

Hi i am looking at the "Application_board_SJA1105_am3.pdf" reference board for the SJA1105 ethernet switch. I can see that all the PHYs are connected with RMII and with clock sourced from the switch. For the port connected to the uC (MII4) the configuration is also RMII but the clock is generated from a external 50MHz oscillator.


My question is: Can the switch generate the 50MHz instead of the external oscilator which operated in MAC(uC)->PHY(SJA1105) mode ?