Freescale Semiconductor MPC8313E PowerQUICC II Pro Family Reference Manual page 857

15.6.1.5 Ethernet Physical Interfaces Signal Summary
Table 15-137 describes the signal multiplexing for the following interfaces: GMII, TBI, and RMII.
eTSEC Signals
Frequency [MHz] 125
Voltage[V] 3.3/2.5
Signals No. of
I/O
(TSEC n _) Signals
GTX_CLK O
TX_CLK I
TxD[0] O
TxD[1] O
TxD[2] O
TxD[3] O
TX_EN O
TX_ER O
RX_CLK I
RxD[0] I
RxD[1] I
RxD[2] I
RxD[3] I
RX_DV I
RX_ER I
COL I
CRS I
Sum
Table 15-138 describes the signal multiplexing for MII and RMII interfaces.
eTSEC Signals
Frequency [MHz] 125
Voltage[V] 3.3/2.5
Signals
(TSEC n _)
GTX_CLK
TX_CLK
MPC8313E PowerQUICC™ II Pro Integrated Processor Family Reference Manual, Rev. 2
Freescale Semiconductor
Table 15-137. GMII, MII, and RMII Signals Multiplexing
GMII Interface
Frequency [MHz] 125
Voltage[V] 3.3
Signals
I/O
(TSEC n _)
1 GTX_CLK O
1 TX_CLK I
1 TxD[0] O
1 TxD[1] O
1 TxD[2] O
1 TxD[3] O
1 TX_EN O
1 TX_ER O
1 RX_CLK I
1 RxD[0] I
1 RxD[1] I
1 RxD[2] I
1 RxD[3] I
1 RX_DV I
1 RX_ER I
1
1
25
Sum
Table 15-138. MII and RMII Signals Multiplexing
Frequency [MHz] 25
No. of Signals
I/O
(TSEC n _)
Signals
O 1
I 1 TX_CLK
MII Interface
Frequency [MHz] 25
Voltage[V] 3.3
No. of Signals
I/O
Signals (TSEC n _)
1
1 TX_CLK I
1 TxD[0] O
1 TxD[1] O
1 TxD[2] O
1 TxD[3] O
1 TX_EN O
1 TX_ER O
1 RX_CLK I
1 RxD[0] I
1 RxD[1] I
1 RxD[2] I
1 RxD[3] I
1 RX_DV I
1 RX_ER I
COL I
CRS I
23
Sum
MII Interface
Voltage[V] 3.3
No. of
I/O
Signals
I 1
Enhanced Three-Speed Ethernet Controllers
RMII Interface
Frequency [MHz] 50
Voltage[V] 3.3
No. of Signals
I/O
Signals (TSEC n _)
1 REF_CLK
1 TxD[0]
1 TxD[1]
1
1
1 TX_EN
1
1
1 RxD[0]
1 RxD[1]
1
1
1 CRS_DV
1 RX_ER
1
1
16
Sum
RMII Interface
Frequency [MHz] 50
Voltage[V] 3.3
Signals No. of
I/O
(TSEC n _)
Signals
REF_CLK I
No. of
Signals
I 1
O 1
O 1
O 1
I 1
I 1
I 1
I 1
8
1
15-139