Freescale Semiconductor MPC8313E PowerQUICC II Pro Family Reference Manual page 856

Enhanced Three-Speed Ethernet Controllers
eTSEC
1
The management signals (MDC and MDIO) are common to all of the Ethernet controllers' connections
in the system, assuming that each PHY has a different management address.
A RTBI interface has 15 signals (GE_GTX_CLK125 included), as defined by the RGMII specification
Version 1.2a 9/22/00, and is intended to be an alternative to the IEEE 802.3u MII, the IEEE 802.3z GMII
and the TBI standard for connecting to an Ethernet PHY.
MPC8313E PowerQUICC™ II Pro Integrated Processor Family Reference Manual, Rev. 2
15-138
Gigabit Reference Clock (GTX_CLK125)
Transmit Data (TSEC n _TXD[4:0]/TSEC n _TXD[9:5])
Gigabit Transmit Clock (TSEC n _GTX_CLK)
Receive Data (TSEC n _RXD[4:0]/TSEC n _RXD[9:5])
Receive Clock (TSEC n _RX_CLK)
Management Data Clock1 (MDC)
Management Data I/O1 (MDIO)
Figure 15-130. eTSEC-RTBI Connection
Gigabit
Ethernet
PHY
Medium
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