Intel ® 815Eg Chipset; Intel 815Eg Chipset Block Diagram - Intel D815EGEWLU - P3 Socket 370 MicroATX Motherboard Specification

Intel Desktop Board D815EGEW Technical Product Specification
®
1.7 Intel 815EG Chipset
®
The Intel 815EG chipset consists of the following devices:
•
82815G Graphics and Memory Controller Hub (GMCH) with Accelerated Hub Architecture
(AHA) bus
•
82801BA I/O Controller Hub (ICH2) with AHA bus
•
Intel 82802AB 4 Mbit Firmware Hub (FWH)
The GMCH is a centralized controller for the system bus, the memory bus, and the AHA bus. The
ICH2 is a centralized controller for the board's I/O paths. The FWH provides the nonvolatile
storage of the BIOS.
The Intel 815EG chipset provides the interfaces shown in Figure 3.
SDRAM Bus
Memory Controller
For information about
The Intel 815EG chipset
The resources used by the chipset
The chipset's compliance with ACPI and AC '97
22
ATA-66/100
System Bus
815EG Chipset
82815G
Graphics and AHA
Bus
Hub (GMCH)
Video
Bus
Figure 3. Intel 815EG Chipset Block Diagram
Network
USB
82801BA
I/O Controller Hub
(ICH2)
LPC Bus
SMBus PCI Bus AC Link
Refer to
http://developer.intel.com/design/chipsets/815eg
Chapter 2
Table 3, page 17
82802AB 4 Mbit
Firmware Hub
(FWH)
OM12838