Functional Description; E.2 Functional Description - HP Deskpro EX Technical Reference Manual

Appendix E Compaq/NVIDIA M64 AGP Graphics Card
E.2

FUNCTIONAL DESCRIPTION

The Compaq/NVIDIA M64 AGP Graphics Card is based on the NVIDIA M64 PRO controller.
This card supports 3D effects such as texturing, z-buffering and alpha blending. The graphics
BIOS code is contained on-board in BIOS ROM.
AGP
Bus
Card
Edge
Connector
Video
Data
VIP
Connector
Figure E–2. Compaq/NVIDIA M64 AGP Graphics Card Block diagram
The card includes a VESA-compliant video feature (VIP) connector allowing a video peripheral to
provide input to the DAC for overlaying a video image on the display. The video/graphics BIOS is
contained in ROM on the card. The NVIDIA M64 graphics controller contains the features listed
below:
16- or 32-MB SDRAM frame buffer using 128-bit 143-MHz access
AGP 4X transfers with sideband addressing
2D drawing engine providing:
3 ROP BtBLT
Triangle BLT
Stretch BLT
Line and poly draw
Color expansion
Coor conversion and scaling
3D rendering engine with:
Triangle setup
Anistropic filtering
Flat and Gouraud shading
Trilinear filtering
TwinTexel engine
300-MHz RAMDAC
32-bit Z/stencil buffer eliminates hidden screen portions for faster loading
32-bit color for increased image quality
30-fps full-screen DVD playback
Dual-monitor support with a PCI graphics card
E-2 Compaq Personal Computers
NVIDIA M64 Pro Graphics Controller
Video
Scalar
AGP 4X
I/F
3D Array
2D/VGA
Engine
Engine
BIOS
ROM
Original - August 2000
128-bit
143-MHz
Data Bus
Memory
I/F
CRT
Controller
VSync
HSync
300-MHz
RGB
RAM
DAC
16/32 MB
SDRAM
Frame Buffer
Analog
Monitor
Connector