Intel D845GLVA Product Specification - Page 23

Intel, 845GL Chipset

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Product Description 1.8 Intel® 845GL Chipset The Intel 845GL chipset consists of the following devices: • Intel 82845GL Graphics and Memory Controller Hub (GMCH) with Accelerated Hub Architecture (AHA) bus • Intel 82801DB I/O Controller Hub (ICH4) with AHA bus • Firmware Hub (FWH) The GMCH is a centralized controller for the system bus, the memory bus, the AGP bus, and the Accelerated Hub Architecture interface. The ICH4 is a centralized controller for the board's I/O paths. The FWH provides the nonvolatile storage of the BIOS. For information about The Intel 845GL chipset Resources used by the chipset Refer to http://developer.intel.com Chapter 2 1.8.1 Intel® Extreme Graphics Controller The Intel Extreme Graphics controller features the following: • Integrated graphics controller  32 bpp (Bits Per Pixel) graphics engine  200 MHz core frequency  256-bit internal data path for 2-D and 3-D graphics  Motion video acceleration • 3-D graphics visual and texturing enhancement • Display  Integrated 24-bit 350 MHz RAMDAC  DDC2B compliant interface • Video  Dual monitor synchronous display  Hardware motion compensation for software MPEG2 decode • Dynamic Video Memory Technology (DVMT) support up to 64 MB For information about DVMT Refer to Section 1.8.1.1, page 27 23

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Product Description
23
1.8 Intel
®
845GL Chipset
The Intel 845GL chipset consists of the following devices:
•
Intel 82845GL Graphics and Memory Controller Hub (GMCH) with Accelerated Hub
Architecture (AHA) bus
•
Intel 82801DB I/O Controller Hub (ICH4) with AHA bus
•
Firmware Hub (FWH)
The GMCH is a centralized controller for the system bus, the memory bus, the AGP bus, and the
Accelerated Hub Architecture interface. The ICH4 is a centralized controller for the board’s I/O
paths. The FWH provides the nonvolatile storage of the BIOS.
For information about
Refer to
The Intel 845GL chipset
Resources used by the chipset
Chapter 2
1.8.1
Intel
®
Extreme Graphics Controller
The Intel Extreme Graphics controller features the following:
•
Integrated graphics controller
32 bpp (Bits Per Pixel) graphics engine
200 MHz core frequency
256-bit internal data path for 2-D and 3-D graphics
Motion video acceleration
•
3-D graphics visual and texturing enhancement
•
Display
Integrated 24-bit 350 MHz RAMDAC
DDC2B compliant interface
•
Video
Dual monitor synchronous display
Hardware motion compensation for software MPEG2 decode
•
Dynamic Video Memory Technology (DVMT) support up to 64 MB
For information about
Refer to
DVMT
Section 1.8.1.1, page 27