Intel 89xx Communication Chipsets
Intel's 89xx Communication Chipsets are a platform controller hub (PCH) that includes standard PC interfaces (e.g., PCI Express, SATA, USB, etc.) along with Intel QuickAssist Technology and I/O interfaces. The PCH can be accessed by the IA processor via two interfaces: a DMI interface that provides connectivity to the standard PC interfaces and a PCI Express interface that provides connectivity to the PCH's PCI Express End Point (EP) for Intel QuickAssist Technology and access to the GbE MACs. These interfaces are not dependent on one another and can be used independently in a system.