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EMAC Functional Architecture
2.3.2
Reduced Media Independent Interface (RMII) Connections
Figure 3
shows a device with integrated EMAC and MDIO interfaced via a RMII connection. This interface
is only available in 10 Mbps and 100 Mbps modes. The RMII interface is only supported in full-duplex
mode for the C645x family of devices.
System
18
Ethernet Media Access Controller (EMAC)/Management Data Input/Output (MDIO)
Figure 3. Ethernet Configuration with RMII Interface
MTXD[1−0]
MTXEN
MCRSDV
MREFCLK
core
MRXD[1−0]
MRXER
MDCLK
MDIO
Transformer
Physical
layer
device
RJ−45
(PHY)
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SPRU975B – August 2006
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