Freescale Semiconductor MPC8313E Family Reference Manual page 872

Enhanced Three-Speed Ethernet Controllers
Table 15-138. RGMII and RTBI Signals Multiplexing (continued)
eTSEC Signals
Frequency [MHz] 125
Voltage[V] 3.3/2.5
Signals
(TSEC n _)
TxD[1]
TxD[2]
TxD[3]
TX_EN
TX_ER
RX_CLK
RxD[0]
RxD[1]
RxD[2]
RxD[3]
RX_DV
RX_ER
COL
CRS
Sum
Table 15-139 describes the signalling for SGMII interfaces. SGMII communication using the eTSEC is
accomplished through the SerDes interface.
SD n _REF_CLK
MPC8313E PowerQUICC II Pro Integrated Processor Family Reference Manual, Rev. 3
15-142
RGMII Interface
Frequency [MHz] 125
Voltage[V] 2.5
No. of Signals
I/O
Signals (TSEC n _)
O 1 TxD[1]
O 1 TxD[2]
O 1 TxD[3]
O 1 TX_CTL
(TX_EN/
TX_ERR)
O 1
I 1 RX_CLK
I 1 RxD[0]/RxD[4]
I 1 RxD[1]/RxD[5]
I 1 RxD[2]/RxD[6]
I 1 RxD[3]/RxD[7]
RX_CTL
I 1 (RX_DV/
RX_ERR)
I 1
I 1
I 1
25
Table 15-139. SGMII Signalling
Signals I/O
SD n _RX[ n ]
I
SD n _TX[ n ] O
I
Sum
No. of
I/O
Signals
O 1 TCG[1]/TCG[6]
O 1 TCG[2]/TCG[7]
O 1 TCG[3]/TCG[8]
O 1 TCG[4]/TCG[9]
I 1
I 1 RCG[0]/RCG[5]
I 1 RCG[1]/RCG[6]
I 1 RCG[2]/RCG[7]
I 1 RCG[3]/RCG[8]
I 1 RCG[4]/RCG[9]
12
Sum
No. of
Function
Signals
2 SGMII receive data (differential)
2 SGMII transmit data (differential)
2 Reference clock (differential)
6
RTBI Interface
Frequency [MHz] 62.5
Voltage[V] 2.5
Signals No. of
I/O
(TSEC n _) Signals
O 1
O 1
O 1
O 1
RX_CLK I 1
I 1
I 1
I 1
I 1
I 1
I
12
Sum
—
Freescale Semiconductor