Datasheet

Micrel, Inc.
KSZ8081MNX/KSZ8081RNB
August
19, 2015 44
Revision 1.4
Register Description (Continued)
Address Name Description Mode
(10)
Default
Register 4h – Auto-Negotiation Advertisement
4.15 Next Page
1 = Next page capable
0 = No next page capability
RW 0
4.14 Reserved Reserved RO 0
4.13 Remote Fault
1 = Remote fault supported
0 = No remote fault
RW 0
4.12 Reserved Reserved RO 0
4.11:10 Pause
[00] = No pause
[10] = Asymmetric pause
[01] = Symmetric pause
[11] = Asymmetric and symmetric pause
RW 00
4.9 100Base-T4
1 = T4 capable
0 = No T4 capability
RO 0
4.8
100Base-TX
Full-Duplex
1 = 100Mbps full-duplex capable
0 = No 100Mbps full-duplex capability
RW
Set by the SPEED strapping pin.
See the Strapping Options –
KSZ8081MNX section for details.
4.7
100Base-TX
Half-Duplex
1 = 100Mbps half-duplex capable
0 = No 100Mbps half-duplex capability
RW
Set by the SPEED strapping pin.
See the Strapping Options –
KSZ8081MNX section for details.
4.6
10Base-T
Full-Duplex
1 = 10Mbps full-duplex capable
0 = No 10Mbps full-duplex capability
RW 1
4.5
10Base-T
Half-Duplex
1 = 10Mbps half-duplex capable
0 = No 10Mbps half-duplex capability
RW 1
4.4:0 Selector Field [00001] = IEEE 802.3 RW 0_0001
Register 5h – Auto-Negotiation Link Partner Ability
5.15 Next Page
1 = Next page capable
0 = No next page capability
RO 0
5.14 Acknowledge
1 = Link code word received from partner
0 = Link code word not yet received
RO 0
5.13 Remote Fault
1 = Remote fault detected
0 = No remote fault
RO 0
5.12 Reserved Reserved RO 0
5.11:10 Pause
[00] = No pause
[10] = Asymmetric pause
[01] = Symmetric pause
[11] = Asymmetric and symmetric pause
RO 00
5.9 100Base-T4
1 = T4 capable
0 = No T4 capability
RO 0
5.8
100Base-TX
Full-Duplex
1 = 100Mbps full-duplex capable
0 = No 100Mbps full-duplex capability
RO 0