Integrated Graphics; Motion Video Controller; Graphics Accelerator - NEC POWERMATE VE - SERVICE MANUAL 05-1996 Service Manual

Table Section 1-6 Interrupt Level Assignments
Interrupt Priority
IRQ13
IRQ14
IRQ15

Integrated Graphics

The system has an SiS 6205 PCI local bus motion video playback controller and graphics
accelerator integrated on the system board. State of the art techniques are used for
optimizing performance in computer graphic intensive applications and graphical user
interfaces (GUI).
The integrated graphics controller integrates a motion video controller, a high-performance
GUI accelerator, 24-bit high frequency DAC and clock generator, VESA
feature connector, and 1 MB of fast 64-bit DRAM (upgradeable to 2 MB).

Motion Video Controller

The motion video controller integrates a powerful Windows
motion video playback hardware for superior performance. The graphics engine includes
an on-chip color space converter to accelerate decompression and a hardware scaler to
scale continuously from native size up to full screen at full speed. The graphics engine
delivers a full screen, smooth display of motion video data up to 30 frames per second
(fps). Support includes MPEG-1 (multimedia systems only) and Video for Windows.
MPEG is a compression/decompression standard developed by the Motion Picture Experts
Group. MPEG produces full-screen 30 fps, broadcast-quality digital video. The video
controller architecture maximizes the motion video performance and removes bandwidth
bottlenecks to display multimedia data at its full speed.

Graphics Accelerator

The graphics accelerator is specifically designed for graphics-intensive operations, text and
color pixel amplification, and scrolling. The graphics accelerator provides 64-bit, ultra-
high performance for demanding True Color, High Color, and pseudocolor GUI and CAD
applications.
The accelerator minimizes bus traffic by off-loading the tasks normally performed by the
processor. The dedicated bit-block transfers (BitBLT) engine maximizes performance by
speeding the movement of large blocks of image data in video memory.
Interrupt Device
Coprocessor
Primary IDE
Secondary IDE
Technical Information
®
-compliant
®
GUI engine and unique
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