Datasheet

Micrel, Inc.
KSZ8081MNX/KSZ8081RNB
August
19, 2015 45
Revision 1.4
Register Description (Continued)
Address Name Description Mode
(10)
Default
Register 5h – Auto-Negotiation Link Partner Ability
5.7
100Base-TX
Half-Duplex
1 = 100Mbps half-duplex capable
0 = No 100Mbps half-duplex capability
RO 0
5.6
10Base-T
Full-Duplex
1 = 10Mbps full-duplex capable
0 = No 10Mbps full-duplex capability
RO 0
5.5
10Base-T
Half-Duplex
1 = 10Mbps half-duplex capable
0 = No 10Mbps half-duplex capability
RO 0
5.4:0 Selector Field [00001] = IEEE 802.3 RO 0_0001
Register 6h – Auto-Negotiation Expansion
6.15:5 Reserved Reserved RO 0000_0000_000
6.4
Parallel
Detection Fault
1 = Fault detected by parallel detection
0 = No fault detected by parallel detection
RO/LH 0
6.3
Link Partner
Next Page
Able
1 = Link partner has next page capability
0 = Link partner does not have next page
capability
RO 0
6.2
Next Page
Able
1 = Local device has next page capability
0 = Local device does not have next page
capability
RO 1
6.1 Page Received
1 = New page received
0 = New page not received yet
RO/LH 0
6.0
Link Partner
Auto-
Negotiation
Able
1 = Link partner has auto-negotiation capability
0 = Link partner does not have auto-negotiation
capability
RO 0
Register 7h – Auto-Negotiation Next Page
7.15 Next Page
1 = Additional next pages will follow
0 = Last page
RW 0
7.14 Reserved Reserved RO 0
7.13 Message Page
1 = Message page
0 = Unformatted page
RW 1
7.12 Acknowledge2
1 = Will comply with message
0 = Cannot comply with message
RW 0
7.11 Toggle
1 = Previous value of the transmitted link code
word equaled logic 1
0 = Logic 0
RO 0
7.10:0 Message Field 11-bit wide field to encode 2048 messages RW 000_0000_0001