Ati Rage Pro Turbo Agp Graphics Controller; Figure F-3. Ati 3Dr Age Prog - Compaq EN Series 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:
230-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
Supports DDC2B+ PnP monitors
Figure F-3 shows the basic architecture of the ATI 3D RAGE PRO controller. Both the AGP and
AGP 2X cards feature the RAGE PRO Turbo controller, with the AGP 2X card using an
enhanced version of the controller that supports AGP 2X operation. The VGA core of the
controller is compatible with VGA, EGA, and CGA software. Extended graphics modes are
supported through video BIOS in flash ROM, which can be easily updated if necessary.
AGP Bus
AGP
Connector
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 - April 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