RMII interface signal definition The RMII interface (Reduced MII interface) is a simplified MII interface. It is also divided into MAC mode and PHY mode. The synchronous reference clock REF_CLK received, sent and controlled by the RMII interface is a 50MHz signal provided by an external clock source. This is different from the original MII interface, in which the sending and receiving clocks are separate and are provided to the MAC layer chip by the physical layer chip. It should be noted here that since the data receiving clock is provided by an external crystal oscillator instead of being extracted from the carrier signal, a FIFO should be designed in the data receiving part of the physical layer chip to coordinate the two different clocks and provide buffering when sending and receiving data. The sending part of the physical layer chip does not need a FIFO, it can directly send out the received data.
You Might Like
Recommended ContentMore
Open source project More
Popular Components
Searched by Users
Just Take a LookMore
Trending Downloads
Trending ArticlesMore