NXP Semiconductors MPC5566 - Page 611

Fast Ethernet Controller (FEC)
MPC5566 Microcontroller Reference Manual, Rev. 2
15-2 Freescale Semiconductor
Figure 15-1. FEC Block Diagram
Slave interface
CSR
FIFO
DMA
Descriptor
controller
MII
Receive
Transmi t
Bus
controller
controller
FEC_MDCFEC_MDIO
FEC_RX_CLK
FEC_RX_DV
FEC_RXD[3:0]
FEC_RX_ER
FEC_TX_CLKFEC_TX_EN
FEC_TXD[3:0]
FEC_TX_ER
FEC_CRS
MIB
I/O
PAD
counters
MII or 7-WIRE DATA
OPTION
RAM
RAM I/F
FEC Bus
System Bus Crossbar Switch (XBAR)PBRIDGE B
Master
FEC Block
MDO
MDEN
MDI
FEC_COL