JG82852GMSL7VP Datasheet, PDF (126/176 Pages) Intel Corporation – Intel® 852GM/852GMV Chipset Intel® 852GM/852GMV Chipset Hub (GMCH)

Functional Description
R
5.4. Integrated Graphics Overview
The GMCH provides a highly integrated graphics accelerator and PCI set while allowing a flexible
Integrated System Graphics solution.
Figure 6. Intel 852GM/852GMV GMCH Graphics Block Diagram
DDR/SDRAM
Memory Control
5.4.1.
Instr./
Data
Video Engine
(MPEG2 Decode)
2D Engine
3D Engine
Setup/Transform
Scan Conversion
Texture Engine
Raster Engine
Overlay
DAC
Sprite
Cursor
Cursor
Primary
Display
Secondary
Display
Pipe A
Cntl
Alpha
Mux
Blend/
Port
Gamma/
CRC Pipe B
LVDS
DVOC
Display C
2^nd Overlay
DDC
A_gmch_blk
High bandwidth access to data is provided through the System Memory port. The GMCH uses a tiling
architecture to minimize page miss latencies and thus maximize effective rendering bandwidth.
3D/2D Instruction Processing
The GMCH contains an extensive set of instructions that control various functions including 3D
rendering, BLT operations, display, MPEG decode acceleration, and overlay. The 3D instructions set
3D pipeline states and control the processing functions. The 2D instructions provide an efficient method
for invoking BLT operations.
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Intel^® 852GM/852GMV Chipset GMCH Datasheet