IEI Integration PCIE-Q350 v1.20 - Manual (Page 42)

PCIE-Q350 PICMG 1.3 CPU Card
Page 21
Figure 2-8: 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 SATA 3Gb/s 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.