Ati Rage Pro Turbo Agp Graphics Controller - Compaq EN Series Technical Reference Manual

6.2.1

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
♦ 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 6-2 shows the basic architecture of the ATI 3D Rage Pro Turbo AGP 2Xcontroller. The
VGA core of the controller is compatible with VGA, EGA, and CGA software. Extended
graphics modes are supported through the video BIOS integrated into the system ROM, which
can be updated if necessary.
AGP Bus
AGP
Connector
VD7..0
VESA
Connector
Figure 6-2. ATI 3D Rage Pro Turbo AGP 2X Graphics Controller Internal Architecture
3D RAGE PRO Turbo AGP 2X
VGA
Controller
Host
Bus
I/F
Video
Processor Coprocessor
Compaq Deskpro EN Series of Personal Computers
Net PC and Small Form Factor Models
First Edition - June 1998
Technical Reference Guide
Memory
I/F
CRT
Controller
Drawing
RAM
DAC
Graphics
Data
Memory
HSync
VSync
Red
Display
Green
Monitor
Blue
6-3