Intel PCI User Manual

Page of 406
Software Developer’s Manual
99
EEPROM Interface
Word
Used
By
Bit
15 - 8
Bit
7 - 0
Image 
Value
LAN
A/B
0Dh
HW
Device ID
see 
 for 
specific 
image 
values
LAN A
0Eh
HW
Vendor ID
8086h
both
0Fh
HW
Init Control 2
3040h for 
the 
82545GM/
EM
 and 
82540EP/
EM
B080h for 
the 
82541xx 
and 
82547GI/EI
both
10h
11h
SW
PHY Registers
82541xx and 82547GI/EI only
00BAh
0000h
N/A
10h
HW
Software Defined Pins Control (82546GB/EB only)
Note: Words 10h, 11h, and 13h through 1Fh are reserved for the 
82545GM/EM and 82540EP/EM
XXXXh
LAN B
11h
HW
Device ID
82546GB/EB only
see 
 for 
specific 
image 
values
LAN B
12h
HW
EEPROM Size
82541xx and 82547GI/EI only
N/A
12h
HW
Common Power
both
13h
1Eh
SW
PHY Registers
82541xx and 82547GI/EI only
00BAh
0000h
N/A
13h
HW
Management Control 
 
LAN B
14h
HW
Init Control 3
SMBus Address
b
XXXXh
LAN B
15h
16h
HW
IPv4 Address Byte 2
IPv4 Address Byte 4
IPv4 Address Byte 1
IPv4 Address Byte 3
IP(2,1)
IP(4,3)
LAN B
Table 5-2. Ethernet Controller Address Map