Micrel, Inc.
KSZ8041NL/RNL
MII Transmit Timing (100Base-TX)
Figure 12. MII Transmit Timing (100Base-TX)
Timing Parameter
Description
Min
Typ
40
Max
Unit
tP
TXC period
ns
ns
ns
ns
ns
ns
ns
ns
ns
tWL
TXC pulse width low
20
tWH
TXC pulse width high
20
tSU1
tSU2
tHD1
tHD2
tCRS1
tCRS2
TXD[3:0] setup to rising edge of TXC
TXEN setup to rising edge of TXC
TXD[3:0] hold from rising edge of TXC
TXEN hold from rising edge of TXC
TXEN high to CRS asserted latency
TXEN low to CRS de-asserted latency
10
10
0
0
34
33
Table 10. MII Transmit Timing (100Base-TX) Parameters
September 2010
45
M9999-090910-1.4