Datasheet

High Performance Single Chip Low Power 10/100 Ethernet Physical Layer Transceiver (PHY)
Datasheet
Revision 0.8 (06-12-08) 52 SMSC LAN83C185
DATASHEET
6.3 10Base-T Timings
6.3.1 10M MII Receive Timing
6.3.2 10M MII Transmit Timing
PARAMETER DESCRIPTION MIN TYP MAX UNITS NOTES
T4.1 Receive signals setup to RX_CLK
rising
10 ns
T4.2 Receive signals hold from RX_CLK
rising
10 ns
RX_CLK frequency 25 MHz
RX_CLK Duty-Cycle 40 %
Receive signals setup to RX_CLK
rising
10 ns
PARAMETER DESCRIPTION MIN TYP MAX UNITS NOTES
T5.1 Transmit signals setup to
TX_CLK rising
12 ns
T5.2 Transmit signals hold after
TX_CLK rising
0ns
TX_CLK frequency 2.5 MHz
TX_CLK Duty-Cycle 50 %
Valid Data
T4.1
T4.2
RX_CLK
RXD[3:0]
RX_DV
RX_ER
TX_CLK
TXD[3:0]
TX_EN
T5.1 T5.2
Valid Data