307013-003 Datasheet, PDF (379/848 Pages) Intel Corporation – Intel I/O Controller Hub 7

LPC Interface Bridge Registers (D31:F0)
Bit
Description
FWH_E0_EN — R/W. This bit enables decoding two 512-KB Firmware Hub memory
ranges.
12 ^{0 = Disable.}
1 = Enable the following ranges for the Firmware Hub:
FFE00000h – FFE7FFFFh
FFA00000h – FFA7FFFFh
FWH_D8_EN — R/W. This bit enables decoding two 512-KB Firmware Hub memory
ranges.
11 ^{0 = Disable.}
1 = Enable the following ranges for the Firmware Hub
FFD80000h – FFDFFFFFh
FF980000h – FF9FFFFFh
FWH_D0_EN — R/W. This bit enables decoding two 512-KB Firmware Hub memory
ranges.
10 ^{0 = Disable.}
1 = Enable the following ranges for the Firmware Hub
FFD00000h – FFD7FFFFh
FF900000h – FF97FFFFh
FWH_C8_EN — R/W. This bit enables decoding two 512-KB Firmware Hub memory
ranges.
9
0 = Disable.
1 = Enable the following ranges for the Firmware Hub
FFC80000h – FFCFFFFFh
FF880000h – FF8FFFFFh
FWH_C0_EN — R/W. This bit enables decoding two 512-KB Firmware Hub memory
ranges.
8
0 = Disable.
1 = Enable the following ranges for the Firmware Hub
FFC00000h – FFC7FFFFh
FF800000h – FF87FFFFh
FWH_Legacy_F_EN — R/W. This enables the decoding of the legacy 128-K range at
F0000h – FFFFFh.
7 _{0 = Disable.}
1 = Enable the following legacy ranges for the Firmware Hub
F0000h – FFFFFh
FWH_Legacy_E_EN — R/W. This enables the decoding of the legacy 128-K range at
E0000h – EFFFFh.
6 _{0 = Disable.}
1 = Enable the following legacy ranges for the Firmware Hub
E0000h – EFFFFh
5:4 Reserved
FWH_70_EN — R/W. Enables decoding two 1-M Firmware Hub memory ranges.
0 = Disable.
3 _{1 = Enable the following ranges for the Firmware Hub}
FF70 0000h – FF7F FFFFh
FF30 0000h – FF3F FFFFh
Intel ^® ICH7 Family Datasheet
379