(ICHºÍICH0ÊÖ²á)Intel 82801AA (ICH) and Intel 82801AB (ICH0) IO Controller Hub

¡¡¡¡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£º ICH and 82801AB£º 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.