Micrel, Inc.
KSZ8041NL
MII Transmit Timing (10Base-T)
Figure 8. MII Transmit Timing (10Base-T)
Timing Parameter
Description
Min
Typ
400
200
200
Max
Unit
ns
tP
TXC period
tWL
TXC pulse width low
ns
tWH
tSU1
tSU2
tHD1
tHD2
tCRS1
TXC pulse width high
ns
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
10
10
0
ns
ns
ns
0
ns
4
8
Bit
Time
tCRS2
TXEN low to CRS de-asserted latency
Bit
Time
Table 7. MII Transmit Timing (10Base-T) Parameters
July 2008
34
M9999-071808-1.2
MICROCHIP [ MICROCHIP ]
