STE100P_06 Datasheet, PDF (27/31 Pages) STMicroelectronics – 10/100 FAST ETHERNET 3.3V TRANSCEIVER

Figure 15. 100BaseT Transmit Timing
STE100P
TXP
Table 9.
Parameter
Sym
Min
Typ
Max
Units
TXD, TX_EN, TX_ER Setup to TX_CLK High
t2A
10
-
-
ns
TXD, TX_EN, TX_ER Hold from TX_CLK High
t2B
5
-
-
ns
TX_EN sampled to CRS asserted
t2C
-
30
40
ns
TX_EN sampled to CRS de-asserted
t2D
-
40
160
ns
TX_EN sampled to TXP out (Tx latency)
t2E
60
100
140
ns
BT is the duration of one bit as transferred to and from the MAC and is the reciprocal of the bit rate.
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