LU6612 Datasheet, PDF (32/36 Pages) Agere Systems – LU6612 FASTCAT TM Single-FET for 10Base-T/100Base-TX

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