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reduced media independent interface (RMII)

Reduced Media Independent Interface (RMII) is a reduced version of the Media Independent Interface (MII).

The reduction in RMII refers to the number of transmission lines and the number of pins, which is 8 instead of 16. In order to be able to guarantee the data rates of 10 Mbit/s and 100 Mbit/s, RMII, like MII, uses the SDR (Single Data Rate) method, in which one edge of the clock signal is used for data transmission. However, the clock rate had to be increased from 25 MHz to 50 MHz.

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Englisch: reduced media independent interface - RMII
Updated at: 21.03.2018
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