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DP83TC811S-Q1: Difference between RMII slave and master mode

Part Number: DP83TC811S-Q1

Hi Team,

What are the difference between RMII Master and RMII slave besides reference clock?

Do they have difference in power dissipation or other things?

How to select whether use slave or master by application?

  • Hi Amelie,

    The difference between RMII Master and Slave is the type of reference clock being fed into the device and whether or not the clock is being shared between the PHY and MAC (Slave)

    To select one or the other, you can set it by register or strap options.

    There is no difference except how to supply the clock and the connections

    Thanks,

    Cecilia