IP175C/IP175C LF/IP175CH/IP175CH LF
Data Sheet
63/111
Mar 09, 2007
Copyright © 2004, IC Plus Corp.
IP175C/IP175CH-DS-R14
MII register 4 of PHY0~4 (Each PHY has its own MII register 4 with different PHY address)
PHY
MII
ROM
R/W
Description
Default
Auto-Negotiation Advertisement register
4~0
4.15
--
RO
Next Page
Not supported. This bit is fixed to be 0.
0
4~0
4.14
--
RO
Reserved by IEEE, write as 0, ignore on read
0
4~0
4.13
--
R/W Remote Fault
1: Advertises that this port has detected a remote fault.
0: There is no remote fault.
0
4~0
4[12:11]
--
RO
Reserved for future IEEE use, write as 0, ignore on read
0
4~0
4.10
--
RW Pause
1 = Advertises that this port has implemented pause function
0 = No pause function supported
Set by
X_EN
4~0
4.9
--
RO
100BASE-T4 Not supported
0
100BASE-TX full duplex
1 = 100BASE-TX full duplex is supported
0 = 100BASE-TX full duplex is not supported
FORCE
FORCE100
FORCE FULL
Default
0
Don’tcare
Don’tcare
1
1
0
0
0
1
0
1
0
1
1
0
0
4~0
4.8
--
R/W
1
1
1
1
*
100BASE-TX
1 = 100BASE-TX is supported
0 = 100BASE-TX is not supported
FORCE
FORCE100
FORCE FULL
Default
0
Don’tcare
Don’tcare
1
1
0
0
0
1
0
1
0
1
1
0
1
4~0
4.7
--
R/W
1
1
1
1
*
10BASE-T full duplex
1 = 10BASE-T full duplex is supported
0 = 10BASE-T full duplex is not supported
FORCE
FORCE100
FORCE FULL
Default
0
Don’tcare
Don’tcare
1
1
0
0
0
1
0
1
1
1
1
0
0
4~0
4.6
--
R/W
1
1
1
1
*
4~0
4.5
--
R/W 10BASE-T
1 = 10BASE-T is supported
0 = 10BASE-T is not supported
1
4~0
4[4:0]
--
RO
Selector Field
Use to identify the type of message being sent by Auto-Negotiation.
5’b00001
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