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IP178C/IP178C LF/IP178CH/IP178CH LF
Datasheet
3.3.2
MAC Mode MII Timing
a. Receive Timing Requirements
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June 21, 2007
Copyright © 2004, IC Plus Corp.
IP178Cx-DS-R12
Symbol
Description
Min.
Typ.
Max.
Unit
TRxClk
Receive clock period 100 Mbps MII
-
40
-
ns
TsRxClk
RXDV, RXD to RXCLK setup time
2
-
-
ns
ThRxClk
RXDV, RXD to RXCLK hold time
0.5
-
-
ns
RX CL K
R X DV, RX D[3 :0 ]
T sRxClk
T hRxClk
T RxClk
b. Transmit Timing
Symbol
Description
Min.
Typ.
Max.
Unit
T
Transmit clock period 100 Mbps MII
TxClk
-
40
-
ns
TdTxClk
TXCLK rising edge to TXEN, TXD
1
-
4
ns
TdTxClk
TXCLK
TXEN, TXD[3:0]
TTxClk