Ethernet: Three-Speed Ethernet, MII Management
Figure 14 shows the RBMII and RTBI AC timing and multiplexing diagrams.
GTX_CLK
(At Transmitter)
TXD[8:5][3:0]
TXD[7:4][3:0]
TXD[3:0]
TXD[8:5]
TXD[7:4]
tRGTH
tSKRGT
tRGT
TX_CTL
TX_CLK
(At PHY)
TXD[4] TXD[9]
TXEN TXERR
tSKRGT
RXD[8:5][3:0]
RXD[7:4][3:0]
RX_CTL
RXD[3:0]
RXD[8:5]
RXD[7:4]
RXD[4] RXD[9]
RXDV RXERR
tSKRGT
RX_CLK
(At PHY)
Figure 14. RGMII and RTBI AC Timing and Multiplexing Diagrams
tSKRGT
MPC8349E PowerQUICC™ II Pro Integrated Host Processor Hardware Specifications, Rev. 10
Freescale Semiconductor
29