User`s manual

CyberResearch
®
Motherboards MMGA Series
CyberResearch, Inc. 17
25 Business Park Drive P: [phone]; F: [phone]
Branford, CT USA www.cyberresearch.com
Some of the capabilities of the Intel® Q35 analog CRT port are listed below:
 400 MHz Integrated 24-bit RAMDAC
 Up to 2048x1536 @ 75 Hz refresh
 Hardware Color Cursor Support
 DDC2B Compliant Interface
2.4.7 Intel® Q35 Direct Media Interface (DMI)
The Direct Media Interface (DMI) is the communication bus between the Intel® Q35
GMCH and the ICH9DO I/O controller hub (ICH). The DMI is a high-speed interface that
integrates advanced priority-based servicing and allows for concurrent traffic and true
isochronous transfer capabilities. The DMI is shown in Figure 1-9.
Figure 1-9: 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