LAN91C100 Datasheet, PDF (50/101 Pages) SMSC Corporation – FEAST™ Fast Ethernet Controller

I/O SPACE - BANK3
OFFSET
8
NAME
MANAGEMENT INTERFACE
TYPE
READ/WRITE
SYMBOL
MGMT
HIGH
BYTE
0
0
1
1
0
0
1
1
LOW
BYTE
MDOE
MCLK
MDI
MDO
0
0
1
1
0
0
MDI Pin
0
MDOE MII Management output enable. When
high pin MDO is driven, when low pin MDO is
tri-stated.
MCLK MII Management clock. The value of
this bit drives the MDCLK pin.
MDI MII Management input. The value of the
MDI pin is readable using this bit.
MDO MII Management output. The value of
this bit drives the MDO pin.
The purpose of this interface, along with the
corresponding pins, is to implement MII PHY
management in software.
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