Datasheet
KSZ8041TL/FTL/MLL
DS00002436B-page 36 2017 Microchip Technology Inc.
0.10 Isolate
1 = Electrical isolation of PHY from MII and TX+/
TX–
0 = Normal operation
RW
Set by ISO strapping
pin.
See Table 2 - 2 for
details.
0.9
Restart
Auto-
Negotiation
1 = Restart auto-negotiation process
0 = Normal operation.
This bit is self-cleared after a ‘1’ is written to it.
RW/SC 0
0.8
Duplex
Mode
1 = Full-duplex
0 = Half-duplex
RW
Inverse of DUPLEX
strapping pin value.
See Table 2 - 2 for
details.
0.7
Collision
Test
1 = Enable COL test
0 = Disable COL test
RW 0
0.6:1 Reserved — RO 000_000
0.0
Disable
Transmitter
0 = Enable transmitter
1 = Disable transmitter
RW 0
Register 1h – Basic Status
1.15 100BASE-T4
1 = T4 capable
0 = Not T4 capable
RO 0
1.14
100BASE-
TX Full-
Duplex
1 = Capable of 100 Mbps full-duplex
0 = Not capable of 100 Mbps full-duplex
RO 1
1.13
100BASE-
TX Half-
Duplex
1 = Capable of 100 Mbps half-duplex
0 = Not capable of 100 Mbps half-duplex
RO 1
1.12
10BASE-T
Full-Duplex
1 = Capable of 10 Mbps full-duplex
0 = Not capable of 10 Mbps full-duplex
RO 1
1.11
10BASE-T
Half-Duplex
1 = Capable of 10 Mbps half-duplex
0 = Not capable of 10 Mbps half-duplex
RO 1
1.10:7 Reserved — RO 0000
1.6 No Preamble
1 = Preamble suppression
0 = Normal preamble
RO 1
1.5
Auto-
Negotiation
Complete
1 = Auto-negotiation process completed
0 = Auto-negotiation process not completed
RO 0
1.4
Remote
Fault
1 = Remote fault
0 = No remote fault
RO/LH 0
1.3
Auto-
Negotiation
Ability
1 = Capable to perform auto-negotiation
0 = Not capable to perform auto-negotiation
RO 1
1.2 Link Status
1 = Link is up
0 = Link is down
RO/LL 0
1.1
Jabber
Detect
1 = Jabber detected
0 = Jabber not detected (default is low)
RO/LH 0
1.0
Extended
Capability
1 = Supports extended capabilities registers RO 1
Register 2h – PHY Identifier 1
2.15:0
PHY ID
Number
Assigned to the 3rd through 18th bits of the Orga-
nizationally Unique Identifier (OUI). Kendin Com-
munication’s OUI is 0010A1 (hex).
RO 0022h
TABLE 4-2: REGISTER DESCRIPTIONS (CONTINUED)
Address Name Description
Mode
Note 4-1
Default