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IP178C/IP178C LF/IP178CH/IP178CH LF
Datasheet
3.3
AC Timing
3.3.1
PHY Mode MII Timing
a. Transmit Timing Requirements
87/93
June 21, 2007
Copyright © 2004, IC Plus Corp.
IP178Cx-DS-R12
Symbol
Description
Min.
Typ.
Max.
Unit
T
Transmit clock period 100 Mbps MII
TxClk
-
40
-
ns
TsTxClk
TXEN, TXD to TXCLK setup time
2
-
-
ns
ThTxClk
TXEN, TXD to TXCLK hold time
0.5
-
-
ns
TXC L K
TXE N , TXD [3 :0 ]
T sTxClk
T hTxClk
T TxClk
b. Receive Timing
Symbol
Description
Min.
Typ.
Max.
Unit
TRxClk
Receive clock period 100 Mbps MII
-
40
-
ns
TRxClk
Receive clock period 10 Mbps MII
-
400
-
ns
TdRxClk
RXCLK falling edge to RXDV, RXD
1
-
4
ns
TdRxClk
RXCLK
RXDV, RXD[3:0]
TRxClk