NVM Information Guide—ICH8
14
1.4.16
Extended Configuration Word 1 (Word 14h)
1.4.17
Extended Configuration Word 2 (Word 15h)
1.4.18
Extended Configuration Word 3 (Word 16h)
Table 12.
Extended Configuration Word 1 (Word 14h)
Bit
Name
Default
Description
15
Reserved
0b
Reserved. Must be set to 0b.
14
Reserved
1b
1b = ICH8 (B0/B1 stepping).
0b = ICH8 (A0 stepping).
13
Reserved
1b
Set this field to 0b.
12
OEM Write Enable
1b
OEM Write Enable
0b = Disable.
1b = Enable.
Set this field to 0b.
11:0
Extended
Configuration
Pointer
020h
This field defines the base address (in Dwords) of the extended
configuration area in the NVM. It should equal a non-zero value.
Table 13.
Extended Configuration Word 2 (Word 15h)
Bit
Name
Default
Description
15:8
Extended PHY
Length
37h
This field identifies the size (in Dwords) of the extended PHY
configuration area.
For the
82566
PHY, if the extended PHY configuration area is
disabled, the length must be set to 37h.
7:0
Reserved
00h
These bits are reserved and should be set to 00h.
Table 14.
Extended Configuration Word 3 (Word 16h)
Bit
Name
Default
Description
15:0
Reserved
00h
These bits are reserved and should be set to 00h.
