KSZ8041NLITR Datasheet, PDF (33/54 Pages) Micrel Semiconductor – 10Base-T/100Base-TX Physical Layer Transceiver

Micrel, Inc.
Register Description (Continued)
Address
Name
Register 0h – Basic Control
0.9
Restart Auto-
Negotiation
0.8
Duplex Mode
Description
1 = Restart auto-negotiation process
0 = Normal operation.
This bit is self-cleared after a ‘1’ is written to it.
1 = Full-duplex
0 = Half-duplex
Mode⁽¹⁾
RW/SC
RW
0.7
0.6:1
0.0
Collision Test
Reserved
Disable
Transmitter
1 = Enable COL test
0 = Disable COL test
0 = Enable transmitter
1 = Disable transmitter
Register 1h – Basic Status
1.15
100Base-T4
1.14
1.13
1.12
1.11
1.10:7
1.6
100Base-TX
Full Duplex
100Base-TX
Half Duplex
10Base-T Full
Duplex
10Base-T Half
Duplex
Reserved
No Preamble
1.5
Auto-
Negotiation
Complete
1.4
Remote Fault
1.3
Auto-
Negotiation
Ability
1.2
Link Status
1.1
Jabber Detect
1.0
Extended
Capability
1 = T4 capable
0 = Not T4 capable
1 = Capable of 100Mbps full-duplex
0 = Not capable of 100Mbps full-duplex
1 = Capable of 100Mbps half-duplex
0 = Not capable of 100Mbps half-duplex
1 = Capable of 10Mbps full-duplex
0 = Not capable of 10Mbps full-duplex
1 = Capable of 10Mbps half-duplex
0 = Not capable of 10Mbps half-duplex
1 = Preamble suppression
0 = Normal preamble
1 = Auto-negotiation process completed
0 = Auto-negotiation process not completed
1 = Remote fault
0 = No remote fault
1 = Capable to perform auto-negotiation
0 = Not capable to perform auto-negotiation
1 = Link is up
0 = Link is down
1 = Jabber detected
0 = Jabber not detected (default is low)
1 = Supports extended capabilities registers
RW
RO
RW
RO
RO
RO
RO
RO
RO
RO
RO
RO/LH
RO
RO/LL
RO/LH
RO
KSZ8041NL/RNL
Default
0
Inverse of DUPLEX strapping pin
value.
See “Strapping Options” section
for details.
0
000_000
0
0
1
1
1
1
0000
1
0
0
1
0
0
1
September 2010
33
M9999-090910-1.4