LU6612
Data Sheet
July 2000
FASTCAT Single-FET for 10Base-T/100Base-TX
Timing Characteristics (Preliminary) (continued)
Table 30. Serial 10 Mbits/s Timing for RX_CLK, CRS, RXD, TX_CLK, TX_EN, and TXD (25 pF Load)
Name
Parameter
Min
Max
Unit
t29
t30
t31
t32
t33
t34
t35
RXD Setup Before RX_CLK Rising Edge
RXD Held Past RX_CLK Edge
30
30
40
30
0
—
—
—
—
—
—
—
ns
ns
ns
ns
ns
ns
ns
RX_CLK Low to CRS Deassertion (at end of received packet)
TX_EN Setup Before TX_CLK Rising Edge
TX_EN Held Past TX_CLK Rising Edge
TXD Setup Before TX_CLK Rising Edge
TXD Held Past TX_CLK Rising Edge
30
0
RX_CLK
CRS
RXD
t31
t29
t30
(START OF PACKET)
(END OF PACKET)
TX_CLK
t32
t34
t33
TX_EN
TXD
t35
LAST BIT
5-2736(F).d
Figure 13. Serial 10 Mbits/s Timing for RX_CLK, CRS, RXD, TX_CLK, TX_EN, and TXD
30
Lucent Technologies Inc.
AGERE [ AGERE SYSTEMS ]
