LAN83C185 Datasheet, PDF (51/61 Pages) SMSC Corporation – HIGH PERFORMANCE SINGLE CHIP LOW POWER 10/100 ETHERNET PHYSICAL LAYER TRANSCEIVER

High Performance Single Chip Low Power 10/100 Ethernet Physical Layer Transceiver (PHY)
Datasheet
Chapter 6 Electrical Characteristics
The timing diagrams and limits in this section define the requirements placed on the external signals
of the Phy.
6.1
Serial Management Interface (SMI) Timing
MDC
MDIO
(Write)
MDIO
(Read)
T1.1
Valid Data
T1.2
T1.3
T1.4
Valid Data
PARAMETER
T1.1
T1.2
T1.3
T1.4
DESCRIPTION
MDC frequency
MDC to MDIO (Write) delay
MDIO (Read) to MDC setup
MDIO (Read) to MDC hold
MIN
0
10
10
TYP MAX UNITS
2.5
MHz
300
ns
ns
ns
NOTES
SMSC LAN83C185
51
DATASHEET
Rev. 0.8 (11-16-04)