
Micrel, Inc.
KSZ8041NL/RNL
September 2010
34
M9999-090910-1.4
Register Description (Continued)
Address
Name
Description
Mode
(1)
Default
Register 2h – PHY Identifier 1
2.15:0
PHY ID
Number
Assigned to the 3rd through 18th bits of the
Organizationally Unique Identifier (OUI).
Kendin Communication’s OUI is 0010A1 (hex)
RO
0022h
Register 3h – PHY Identifier 2
3.15:10
PHY ID
Number
Assigned to the 19th through 24th bits of the
Organizationally Unique Identifier (OUI).
Kendin Communication’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 = 100Mbps full-duplex capable
0 = No 100Mbps full-duplex capability
RW
Set by SPEED strapping pin.
See “Strapping Options” section
for details.
4.7
100Base-TX
Half-Duplex
1 = 100Mbps half-duplex capable
0 = No 100Mbps half-duplex capability
RW
Set by SPEED strapping pin.
See “Strapping Options” 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