Figure F-3. Ati 3Dr Age Prog; F.2.1 Ati Rage Pro Turbo Agp Graphics Controller - Compaq Deskpro EP 6233 Technical Reference Manual

F.2.1 ATI RAGE PRO TURBO AGP GRAPHICS CONTROLLER
The ATI RAGE PRO Turbo AGP graphics controller provides most of the functionality of the
integrated graphics subsystem and contains the features listed below:
128-level command FIFO 24-bit 200-MHz DAC
2D accelerator with:
Hardware BitBLT, line draw, polygon fill, h/w cursor
MS DirectDraw support (double buffering, virtual sprites, transparent BitBLT)
8-/16-/24-/32-bpp acceleration
24-bpp true color w/1 MB memory
3D accelerator with:
Integrated 4-KB texture cache for improved large triangle performance
3D primitive support for points, lines, triangle, lists, strips, and quadrilaterals
Full screen/window double buffering
Hidden surface removal with 16-bit Z-buffering
Single pass bi- and tri-linear filtering support
Full Direct3D texture lighting support
Dithering support in 16-bpp for near-24-bpp quality in less memory
VESA DDC1 and DDC2B support
Video processor/accelerator supporting the following formats:
YCrCb 4:2:2
RGB 5-5-5
RGB 5-6-5
Cirrus AcciPak 91m)
Power management for full VESA DPMS and EPA Energy Star compliance
Figure F-3 shows the basic architecture of the ATI 3D RAGE PRO controller, which is
compatible with software written for VGA, EGA, and CGA modes. Drivers are supplied for
control of graphics (GUI) accelerator engines used in extended VGA modes. The 3D RAGE
PRO includes multimedia support such as video overlay and DAC mode switching as well as
VESA standard feature connector (VSFC) baseline support. The 3D RAGE PRO accelerates
video playback by providing format conversion, interpolated x and y zooming, and color-space
conversion for the video display area (window).
AD31..0
AGP Bus
VD7..0
VESA
Connector
Figure F–3. ATI 3DRage Pro Graphics Controller Internal Architecture
3D RAGE PRO
VGA
Controller
Host
Bus
I/F
Video
Processor Coprocessor
Original - March 1998
Technical Reference Guide
Memory
I/F
CRT
Controller
Drawing
RAM
DAC
Compaq Personal Computers
Graphics
Data
Memory
HSync
VSync
Red
Display
Green
Monitor
Blue
F-3