LU6612
Data Sheet
July 2000
FASTCAT Single-FET for 10Base-T/100Base-TX
Timing Characteristics (Preliminary) (continued)
Table 32. 100 Mbits/s MII Transmit Timing
Name
Parameter
Min
Max
Unit
t40
t41
t42
Rising Edge of TX_CLK Following TX_EN Assertion to CRS Assertion
Rising Edge of TX_CLK Following TX_EN Assertion to TX/TY
—
—
—
40
60
40
ns
ns
ns
Rising Edge of TX_CLK Following TX_EN Deassertion to CRS Deassertion
TX_CLK
TX_EN
TXD[3:0]
CRS
t40
t42
1st BIT OF T
1st BIT OF J
t41
TX/TY
5-3745(F).er1
Figure 15. 100 Mbits/s MII Transmit Timing
32
Lucent Technologies Inc.