IP101A LF
Data Sheet
14/36
Oct 22, 2007
Copyright © 2004, IC Plus Corp.
IP101A LF-DS-R12
Register Descriptions (continued)
Bit
Name
Description/Usage
Default value
(h): 7849
Register 1 : MII Status Register
15
100Base-T4
1 = enable 100Base-T4 support
0 = suppress 100Base-T4 support
0, RO
14
100Base-TX
Full Duplex
1 = enable 100Base-TX full duplex support
0 = suppress 100Base-TX full duplex support
1, RO
13
100BASE-TX
Half Duplex
1 = enable 100Base-TX half duplex support
0 = suppress 100Base-TX half duplex support
1, RO
12
10Base-T Full
Duplex
1 = enable 10Base-T full duplex support
0 = suppress 10Base-T full duplex support
1, RO
11
10_Base-T Half
Duplex
1 = enable 10Base-T half duplex support
0 = suppress 10Base-T half duplex support
1, RO
10:7
Reserved
0, RO
6
MF Preamble
Suppression
The IP101A LF will accept management frames with
preamble suppressed. The IP101A LF accepts management
frames without preamble. A Minimum of 32 preamble bits are
required for the first SMI read/write transaction after reset.
One idle bit is required between any two management
transactions as per IEEE802.3u specifications
1, RO
5
Auto-
Negotiation
Complete
1 = auto-negotiation process completed
0 = auto-negotiation process not completed
0, RO
4
Remote Fault
1 = remote fault condition detected (cleared on read)
0 = no remote fault condition detected
0, RO/LH
3
Auto-
Negotiation
1 = Link had not been experienced fail state
0 = Link had been experienced fail state
1, RO
2
Link Status
1 = valid link established
0 = no valid link established
0, RO/LL
1
Jabber Detect
1 = jabber condition detected
0 = no jabber condition detected
0, RO/LH
0
Extended
Capability
1 = extended register capability
0 = basic register capability only
1, RO
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