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(ICH和ICH0手册)Intel 82801AA (ICH) and Intel 82801AB (ICH0) IO Controller Hub
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The ICH is a highly integrated multifunctional I/O Controller Hub that provides the interface to the
PCI Bus and integrates many of the functions needed in today’s PC platforms. The ICH
communicates with the host controller over a dedicated hub interface. There are two versions of the
ICH （82801AA： ICH and 82801AB： ICH0）。 This provides added flexibility in designing costeffective system solutions. These devices are pin compatible and are in 241-pin packages.
This datasheet describes the 82801AA （ICH） and 82801AB （ICH0） components. Unless otherwise
specified， all non-shaded areas describe the functionality of both components. In the non-shaded
areas， the term I/O Controller Hub （ICH） refers to both the 82801AB and 82801AA products.
Shading， as is shown here， indicates differences between the two components. In the shaded areas
ICH refers to the 82801AA and ICH0 refers to the 82801AB.
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h1654156022.1315
2022-08-22
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