LAN83C185_03 Datasheet, PDF (56/65 Pages) SMSC Corporation – High Performance Single Chip Low Power 10/100 Ethernet Physical Layer Transceiver

6.2
6.2.1
High Performance Single Chip Low Power 10/100 Ethernet Physical Layer Transceiver (PHY)
100Base-TX Timings
Datasheet
100M MII Receive Timing
RX_CLK
RXD[3:0]
RX_DV
RX_ER
Valid Data
T2.1 T2.2
PARAMETER
T2.1
T2.2
DESCRIPTION
Receive signals setup to RX_CLK
rising
Receive signals hold from
RX_CLK rising
RX_CLK frequency
RX_CLK Duty-Cycle
MIN
10
10
TYP
25
40
MAX
UNITS
ns
ns
MHz
%
NOTES
6.2.2 100M MII Transmit Timing
TX_CLK
TXD[3:0]
TX_EN
TX_ER
Valid Data
T3.1 T3.2
PARAMETER
T3.1
T3.2
Rev. 0.6 (12-12-03)
DESCRIPTION
Transmit signals setup to TX_CLK
rising
Transmit signals hold after
TX_CLK rising
TX_CLK frequency
TX_CLK Duty-Cycle
MIN
12
0
TYP
25
40
48
DATASHEET
MAX
UNITS
ns
NOTES
ns
MHz
%
SMSC LAN83C185