KSZ8041NL/RNL
TABLE 4-2:
Address
REGISTER DESCRIPTIONS (CONTINUED)
Mode
Default
Name
Description
(Note 4-1)
1 = Capable of 100 Mbps half-
duplex
0 = Not capable of 100 Mbps
half-duplex
1.13
1.12
1.11
100BASE-TX Half Duplex
RO
RO
RO
1
1
1
1 = Capable of 10 Mbps full-
duplex
0 = Not capable of 10 Mbps full-
duplex
10BASE-T Full Duplex
10BASE-T Half Duplex
1 = Capable of 10 Mbps half-
duplex
0 = Not capable of 10 Mbps half-
duplex
1.10:7
1.6
Reserved
—
RO
RO
0000
1
1 = Preamble suppression
0 = Normal preamble
No Preamble
1 = Auto-negotiation process
completed
0 = Auto-negotiation process not
completed
1.5
1.4
1.3
Auto-Negotiation Complete
Remote Fault
RO
RO/LH
RO
0
0
1
1 = Remote fault
0 = No remote fault
1 = Capable to perform auto-
negotiation
0 = Not capable to perform auto-
negotiation
Auto-Negotiation Ability
1 = Link is up
0 = Link is down
1.2
1.1
1.0
Link Status
RO/LL
RO/LH
RO
0
0
1
1 = Jabber detected
0 = Jabber not detected (default
is low)
Jabber Detect
1 = Supports extended capabili-
ties registers
Extended Capability
Register 2h – PHY Identifier 1
Assigned to the 3rd through 18th
bits of the Organizationally
Unique Identifier (OUI). Kendin
Communication’s OUI is 0010A1
(hex)
2.15.0
PHY ID Number
RO
RO
0022h
Register 3h – PHY Identifier 2
Assigned to the 19th through
24th bits of the Organizationally
Unique Identifier (OUI). Kendin
Communication’s OUI is 0010A1
(hex)
3.15:10
PHY ID Number
0001_01
Six bit manufacturer’s model
number
3.9:4
3.3:0
Model Number
RO
RO
01_0001
Four bit manufacturer’s
revision number
Revision Number
Indicates silicon revision
2017 Microchip Technology Inc.
DS00002245B-page 31
MICROCHIP [ MICROCHIP ]
