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Appendix G Compaq/ELSA GLoria II AGP Graphics Card
Compaq Personal Computers
Original - November 2000
G-2
G.2 FUNCTIONAL DESCRIPTION
The ELSA GLoria II-SD Graphics Card provides high performance 2D and 3D display imaging.
The card’s AGP design provides an economical approach to 3D processing by off-loading 3D
effects such as texturing, z-buffering and alpha blending to the system memory while 64 megabytes
of on-board SDRAM stores the main display image.
Figure G-2. ELSA GLoria II Graphics Card Block diagram
The ELSA GLoria II Graphics Card includes the following features:
♦ 64-MB SDRAM frame buffer using 128-bit 166-MHz access
♦ AGP 4X transfers with sideband addressing
♦ 2D drawing engine with:
• 128-bit BitBLTs, rectangle/polygon fills, line draws
• Hardware cursor
• 8-/16-/32-bpp mode acceleration
♦ DVD support with:
• Hardware-accelerated MPEG2 (720 x 480)
• HDTV format support (720i-1080i, 720p-1080p)
♦ 3D accelerator with:
• Hardware transform and lighting
• Single-pass dual textures
• 4 rendering pipelines
• Anistropic filtering
• 8-bit stencil buffer
• Specular lighting diffuse shading
• 16-/24-bit Z-buffering
♦ 350-MHz RAMDAC
♦ VESA compliancy:
• DVI/DFP connector
• DDC2B monitor support
• DPMS, EPA Energy Star, and ACPI-compliant power management
BIOS
ROM
HSync
128-bit
166-MHz
Data Bus
Analog
Monitor
Connector
RGB
NVIDIA N10 Graphics Controller
3D Array
Engine
Video
Scalar
350-MHz
RAM
DAC
CRT
Controller
Memory
I/F
AGP
Bus
Card
Edge
Connector
VSync
2D/VGA
Engine
64 MB
SDRAM
Frame Buffer
AGP 4X
I/F