Fast Ethernet 10/100 Hex Transceiver with Full MII — LXT9763
Figure 24. 100BASE-FX Receive Timing
0ns
250ns
TPFI
t4
t5
CRS
t3
RX_DV
t1
t2
RXD<3:0>
RX_CLK
t6
t7
COL
Table 26. 100BASE-FX Receive Timing Parameters
1
Parameter
Sym
Min
Typ
Max
Units
Test Conditions
RXD<3:0>, RX_DV, RX_ER setup
to RX_CLK High
t1
10
–
–
ns
–
RXD<3:0>, RX_DV, RX_ER hold
from RX_CLK High
t2
10
–
–
ns
–
CRS asserted to RXD<3:0>, RX_DV
Receive start of “J” to CRS asserted
Receive start of “T” to CRS de-asserted
Receive start of “J” to COL asserted
Receive start of “T” to COL de-asserted
t3
t4
t5
t6
t7
–
–
–
–
–
4
–
–
–
–
–
BT
BT
BT
BT
BT
–
–
–
–
–
10
14
10
14
1. Typical values are at 25 °C and are for design aid only; not guaranteed and not subject to production testing.
Datasheet
51
INTEL [ INTEL ]
