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IP1718 LF
Preliminary Data Sheet
CPU Serial Bus Timing
Symbol
Description
Min.
Typ.
Max.
Unit
TS_C
SCPUC cycle time
400
-
ns
TSIO_SU
Serial I/O set up time
10
-
ns
TSIO_H
Serial I/O hold time
10
-
-
ns
TSIO_D
Serial I/O output delay time
-
20
ns
TS_C
SCPUC
SCPUIO
(Input)
Serial I/O Input Cycle
TSIO_H
TSIO_SU
SCPUC
SCPUIO
(Output)
Serial I/O Output Cycle
TSIO_D
MII Transmit Timing
Symbol
Description
Min.
Typ.
Max.
Unit
TTxClk
Transmit clock period 100Mbps MII
-
40
-
ns
TTxClk
Transmit clock period 10Mbps MII
-
400
-
ns
TTxClk_SU
TXEN, TXD to MII_TXCLK setup time
2
-
-
ns
TTxClk_H
TXEN, TXD to MII_TXCLK hold time
0.5
-
-
ns
MII_T XC LK
TXE N , TXD [3:0]
T TxClk_SU
TTxClk_H
T TxClk
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January 27, 2005
Copyright © 2003, IC Plus Corp.
IP1718 LF-DS-R05