LU3X34FTR Datasheet, PDF (46/52 Pages) Agere Systems – Quad 3 V 10/100 Ethernet Transceiver TX/FX

LU3X34FTR
Quad 3 V 10/100 Ethernet Transceiver TX/FX
Clock Timing (continued)
Table 38. Transmit Timing
Symbol
t1
t2
Parameter
Transmit Latency (100 Mbit)
Transmit Latency (10 Mbit)
Sampled TXEN Inactive to End of Frame
(100 Mbit)
Sampled TXEN Inactive to End of Frame
(10 Mbit)
Preliminary Data Sheet
July 2000
Min
Max
Unit
6
14
Mbits/s
4
—
Mbits/s
—
17
Mbits/s
—
5
Mbits/s
RXCLK
TXEN
TPTX
t1
t2
PREAMBLE
Figure 15. Transmit Timing
Table 39. Receive Timing
Symbol
t1
t2
Parameter
Receive Frame to CRS_DV High (100 Mbit)
Receive Frame to CRS_DV High (10 Mbit)
End of Receive Frame to CRS_DV Low
(100 Mbit)
End of Receive Frame to CRS_DV Low
(10 Mbit)
Min
Max
—
20
—
22
13
24
—
4.5
5-6789(F).a.r1
Unit
Mbits/s
Mbits/s
Mbits/s
Mbits/s
REF_CLK
CRS_DV
TPRX
t1
t2
DATA
Figure 16. Receive Timing
5-6790(F).a
46
Lucent Technologies Inc.