82801BA Datasheet, PDF (232/498 Pages) Intel Corporation – Intel 82801BA I/O Controller Hub 2 (ICH2) and Intel 82801BAM I/O Controller Hub 2 Mobile

LAN Controller Registers (B1:D8:F0)
7.1.13
SVID—Subsystem Vendor ID (LAN Controller—B1:D8:F0)
Offset Address: 2C–2D
Default Value: 0000h
Attribute:
Size:
RO
16 bits
Bit
15:0 Subsystem Vendor ID—RO.
Description
7.1.14
SID—Subsystem ID (LAN Controller—B1:D8:F0)
Offset Address: 2E–2Fh
Default Value: 0000h
Attribute:
Size:
RO
16 bits
Bit
15:0 Subsystem ID—RO.
Description
Note:
The ICH2’s integrated LAN Controller provides support for configureable Subsystem ID and
Subsystem Vendor ID fields. After reset, the LAN Controller automatically reads addresses Ah
through Ch of the EEPROM. The LAN Controller checks bits 15:13 in the EEPROM word Ah, and
functions according to Table 7-2.
Table 7-2. Configuration of Subsystem ID and Subsystem Vendor ID via EEPROM
Bits 15:14 Bit 13 Device ID Vendor ID
11b, 10b,
00b
X
01b
0b
2449h
2449h
8086h
8086h
01b
1b Word Bh Word Ch
Revision ID
00h
00h
Word Ah,
bits 10:8
Subsystem ID
0000h
Word Bh
Word Bh
Subsystem
Vendor ID
0000h
Word Ch
Word Ch
7.1.15 CAP_PTR—Capabilities Pointer
(LAN Controller—B1:D8:F0)
Offset Address: 34h
Default Value: DCh
Attribute:
Size:
RO
8 bits
Bit
Description
7:0
Capabilities Pointer (CAP_PTR)—RO. Hardwired to DCh to indicate the offset within configuration
space for the location of the Power Management registers.
7-6
82801BA ICH2 and 82801BAM ICH2-M Datasheet