Guide

System Overview
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Intel
®
852GM Chipset Platform Design Guide 21
2. System Overview
The Intel 852GM GMCH is a graphics memory controller hub (GMCH) component for mobile
platforms. It provides the processor interface, system memory interface (DDR-SDRAM), Hub interface,
CRT, LVDS, and one DVO port.
An ACPI-compliant Intel 852GM chipset platform can support the Full-On (S0), Power On Suspend
(S1-M), Suspend to RAM (S3), Suspend to Disk (S4), and Soft-Off (S5) power management states.
Through the use of an appropriate LAN device, the chipset also supports wake-on LAN* for remote
administration and troubleshooting. The chipset architecture removes the requirement for the ISA
expansion bus that was traditionally integrated into the I/O subsystem of PCIsets/AGPsets.
2.1. Intel
®
852GM Chipset Platform System Features
The Intel 852GM chipset contains two core components: the Intel 852GM GMCH and the Intel ICH4-
M. The GMCH integrates the following:
• 400-MHz processor Front Side Bus (FSB) controller
• Graphics controller interface
• Dual Channel 18 bit LVDS interface for TFT panel support
• One Digital Video Out Port (DVO)
• Supports DDR200/266 MHz memory technology
• High-speed Accelerated Hub Architecture interface for communication with the ICH4-M
The ICH4-M integrates the following:
• Ultra ATA 100/66/33 controller
• USB host controller that supports the USB 1.1 and USB 2.0 specification
• LPC interface
• FWH Flash BIOS interface controller
• PCI interface controller
• AC’97 digital controller with Enhanced 20-bit Audio support
• Hub Interface for communication with the GMCH
Figure 1 provides a basic system block diagram of the Intel 852GM chipset.