Datasheet
2017 Microchip Technology Inc. DS00002436B-page 37
KSZ8041TL/FTL/MLL
Register 3h – PHY Identifier 2
3.15:10
PHY ID
Number
Assigned to the 19th through 24th bits of the Orga-
nizationally Unique Identifier (OUI). Kendin Com-
munication’s OUI is 0010A1 (hex).
RO 0001_01
3.9:4
Model
Number
Six bit manufacturer’s model number. RO 01_0001
3.3:0
Revision
Number
Four bit manufacturer’s revision number. RO
Indicates silicon
revision
Register 4h – Auto-Negotiation Advertisement
4.15 Next Page
1 = Next page capable
0 = No next page capability.
RW 0
4.14 Reserved — RO 0
4.13
Remote
Fault
1 = Remote fault supported
0 = No remote fault
RW 0
4.12 Reserved — RO 0
4.11:10 Pause
[00] = No PAUSE
[10] = Asymmetric PAUSE
[01] = Symmetric PAUSE
[11] = Asymmetric & Symmetric PAUSE
RW 00
4.9 100BASE-T4
1 = T4 capable
0 = No T4 capability
RO 0
4.8
100BASE-
TX Full-
Duplex
1 = 100 Mbps full-duplex capable
0 = No 100 Mbps full-duplex capability
RW
Set by SPEED strap-
ping pin.
See Table 2 - 2 for
details.
4.7
100BASE-
TX Half-
Duplex
1 = 100 Mbps half-duplex capable
0 = No 100 Mbps half-duplex capability
RW
Set by SPEED strap-
ping pin.
See Table 2 - 2 for
details.
4.6
10BASE-T
Full-Duplex
1 = 10 Mbps full-duplex capable
0 = No 10 Mbps full-duplex capability
RW 1
4.5
10BASE-T
Half-Duplex
1 = 10 Mbps half-duplex capable
0 = No 10 Mbps 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
Acknowl-
edge
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 — RO 0
5.11:10 Pause
[00] = No PAUSE
[10] = Asymmetric PAUSE
[01] = Symmetric PAUSE
[11] = Asymmetric & Symmetric PAUSE
RO 00
5.9 100BASE-T4
1 = T4 capable
0 = No T4 capability
RO 0
TABLE 4-2: REGISTER DESCRIPTIONS (CONTINUED)
Address Name Description
Mode
Note 4-1
Default