lan8700 Standard Microsystems Corp., lan8700 Datasheet - Page 54

• Manufacturer Part Number: lan8700
• Description: ?15kv Esd Protected Mii/rmii 10/100 Ethernet Transceiver With Hp Auto-mdix Support And Flexpwrtm Technology In A Small Footprint
• Manufacturer: Standard Microsystems Corp.

Chapter 6 AC Electrical Characteristics
Revision 2.0 (07-15-08)
6.1
PARAMETER
Data Out -
Data In -
Clock -
T1.1
T1.2
T1.3
T1.4
MDIO
MDIO
MDC
The timing diagrams and limits in this section define the requirements placed on the external signals
of the Phy.
The Serial Management Interface is used for status and control as described in
Serial Management Interface (SMI) Timing
MDC minimum cycle time
MDC to MDIO (Read from PHY)
delay
MDIO (Write to PHY) to MDC setup
MDIO (Write to PHY) to MDC hold
DESCRIPTION
T
1.3
(Write to PHY)
±15kV ESD Protected MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support and flexPWR
Figure 6.1 SMI Timing Diagram
Valid Data
Table 6.1 SMI Timing Values
T
1.2
DATASHEET
T
1.4
T
(Read from PHY)
54
1.1
Valid Data
MIN
400
10
10
0
TYP
MAX
30
UNITS
SMSC LAN8700/LAN8700i
ns
ns
ns
ns
Section
TM
Technology in a Small Footprint
4.13.
NOTES
Datasheet