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CEGC Series
CyberResearch
®
CPU Cards
20 ©Copyright 2008
CyberResearch, Inc.
Figure Error! No text of specified style in document. -10: DMI Chip-to-Chip
Connection
Some of the features of the DMI include:
2.0 GBps point-to-point DMI to ICH9DO (1.0 GBps in each direction)
100 MHz reference clock (shared with PCI Express* Graphics Attach)
32-bit downstream addressing
APIC and MSI interrupt messaging support
Message Signaled Interrupt (MSI) messages
SMI, SCI and SERR error indication
2.5 Intel
®
ICH9DO Southbridge Chipset
2.5.1 Intel
®
ICH9DO Overview
Intel® ICH9DO Southbridge is an advanced I/O controller hub (ICH) connected to the
Intel® Q35 Northbridge through a DMI connection. The Intel® ICH9DO has six PCIe x1
ports, supports up to twelve USB 2.0 devices, six 3.0 Gbps SATA II drives with Intel®
Matrix Storage Technology (ACHI, RAID 0, RAID 1, RAID 5 or RAID 10), and comes with
an integrated GbE controller that is interfaced to an external RJ-45 connector. A
High-Definition audio (HDA) controller can be connected to an HDA codec on an optional
audio kit. Four PCI Masters provide PCI expansion capabilities on a compatible PICMG
1.3 backplane.