KSZ8041NL/RNL
7.4
MII Transmit Timing (100BASE-TX)
FIGURE 7-4:
MII TRANSMIT TIMING (100BASE-TX)
tWL
TXC
tWH
tHD2
tSU2
tP
TXEN
tHD1
tSU1
Data
In
TXD[3:0]
tCRS2
tCRS1
CRS
TABLE 7-4:
MII TRANSMIT TIMING (100BASE-TX) PARAMETERS
Timing
Parameter
Description
Min.
Typ.
Max.
Unit
tP
TXC Period
—
—
—
40
20
20
—
—
—
—
—
—
—
—
—
—
—
—
—
ns
ns
ns
ns
ns
ns
ns
ns
ns
tWL
TXC Pulse Width Low
tWH
TXC Pulse Width High
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
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DS00002245B-page 42
2017 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
