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Technical Reference Guide
The card includes four MGA G200 graphics controllers. Each controller includes a VGA
controller core, 2D and 3D engines, and a 250-MHz RAMDAC. Each controller can drive either
an analog RGB monitor or a DVI-compliant digital monitor.
128-bit
Data Bus
RGB
Analog
Monitor
H/VSync
DVI Data
Digital
Monitor
3D Array
Engine
Video
Scalar
2D/VGA
Engine
DVI
Controller
250-MHz
RAMDAC
CRT
Controller
Memory
I/F
PCI
I/F
Card
Edge
Connector
PCI
Bus
MGA G200 Graphics Controller
Figure H-3. MGA G200 Graphics Controller Architecture
The MGA G200 graphics controller includes the following features:
♦ 64-bit SGRAM interface
♦ PCI bus 2.1 compliant with bus-mastering support
♦ 2D drawing engine with:
• 128-bit BitBLTs, rectangle/polygon fills, line draws
• Hardware cursor
• 8-/16-/32-bpp mode acceleration
♦ Analog (RGB) or DVI monitor support
♦ 3D accelerator with:
• Vertex fog
• Anistropic filtering
• Specular lighting diffuse, flat and Gouraud shading
• Full-scene anti-aliasing
♦ 250-MHz RAMDAC
♦ VESA compliancy:
• Dual DDC2B monitor support
• VIP 2.0 interface
• DPMS, EPA Energy Star, and ACPI-compliant power management
Compaq Personal Computers
Original - March 2002
H-3