MPC860 Motorola, MPC860 Datasheet - Page 66

• Manufacturer Part Number: MPC860
• Description: Family Hardware Specifications
• Manufacturer: Motorola

FEC Electrical Characteristics
Figure 12-69 shows signal timings during UTOPIA transmit operations.
Part XIII FEC Electrical Characteristics
This section provides the AC electrical specifications for the Fast Ethernet controller (FEC).
Note that the timing specifications for the MII signals are independent of system clock
frequency (part speed designation). Also, MII signals use TTL signal levels compatible
with devices operating at either 5.0 V or 3.3 V.
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PHREQn
PHSELn
RxClav
TxClav
RxEnb
UtpClk
UtpClk
TxEnb
UTPB
UTPB
SOC
SOC
U5
5
HighZ at MPHY
U5
HighZ at MPHY
Figure 12-69. UTOPIA Transmit Timing
Figure 12-68. UTOPIA Receive Timing
MPC860 Family Hardware Specifications
U2
2
U2
2
U5
5
U3
3
U1
U3
1
U1
3
U4
4
U4
4
U1
U1
U3
3
U4
MOTOROLA
4
HighZ at MPHY
HighZ at MPHY