Video Interface - Compaq Armada e500 Series Reference Manual

Video Interface

The RAGE Mobility-P integrates the flat panel/VGA controller, 2D/3D graphics
acceleration hardware, motion compensation of MPEG-2 data, memory controller with
a 64-bit data path, RAMDAC, clock synthesizer, Zoomed Video interface, and LVDS
control interface into a single package. The Mobility-P interfaces to the system through
the AGP bus for maximum performance, and supports Zoomed Video.
The controller provides all current compatible modes, including VGA, SVGA, and
XGA modes. It supports the internal single-interface or dual-interface LCD panels as
well as an external CRT and TV monitor. Simultaneous display is supported on the
LCD and CRT, CRT and TV, or LCD and TV.
Figure 7-1 provides a block diagram for the controller.
Six Clock
Synthesizer
Power
Management
Controller
Built-in Self
Diagnostics
Figure 7-1. RAGE Mobility-P Graphics Controller used in the Armada E500 and
Armada V300
7-2 Video/Graphics Subsystem
AGP
or
PCI
Host Bus Interface
Drawing Coprocessor
Setup Engine
3D Engine
Texture Control
3D Engine
Scaler YUV2 RGB
iDCT Engine
2D Engine
VGA Graphics Controller
Video I/O Interface
ZOOM
VIDEO
PORT
DISPLAY
MEMORY
Memory Controller and Interface
Display Controller #1
Primary Display Controller
Display VGA ATTR
FIFO #1 Controller
Graphics
Palette 1
Stream 1
with
Hardware Switchable
Cursor 1 Video
Overlay
Hardware
Control
Icon 1
Back End
Video Stream YUV2
Scaler
DVD Subpicture
LCD Engine
Algorithm for STN/DSTN
Output
Display Controller #2
Primary Display Controller
Display FIFO #2
Graphics
Palette 2
Stream 2
with
Hardware Switchable
Cursor 2 Video
Overlay
Hardware
Control
Icon 2
CRT
DAC
TV Encoder
TV DAC
Output
Output