MMGA Series
CyberResearch
®
Motherboards
18
©Copyright 2009
CyberResearch, Inc.
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). A High-Definition
audio (HDA) controller can be connected to an HDA codec. The PCI Masters provide PCI
expansion capabilities through the two PCI slots on the motherboard.
2.5.2 Intel
®
ICH9DO Features
The ICH9DO Southbridge chipset on the MMGA has the features listed below.
Complies with PCI Express Base Specification, Revision 1.1
Complies with PCI Local Bus Specification, Revision 2.3 and supports 33MHz
PCI operations
Supports ACPI Power Management Logic
Contains:
o
Enhanced DMA controller
o
Interrupt controller
o
Timer functions
Integrated SATA host controller with DMA operations on six ports with data
transfer rates up to 3.0 Gbps
Supports twelve USB 2.0 devices with six UHCI controllers and two EHCI
controller
Complies with System Management Bus (SMBus) Specification, Version 2.0
Supports Intel
®
High Definition Audio
Supports Intel
®
Matrix storage technology
Contains Low Pin Count (LPC) interface
Serial Peripheral Interface (SPI) for Serial and Shared Flash
