Integrated Graphics; Motion Video Controller; Graphics Accelerator; Video Memory - NEC POWERMATE V Service Manual

Technical Information 1-11

Integrated Graphics

The system has an Alliance ProMotion-6422 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 -compliant
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 GUI engine and unique
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 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.

Video Memory

The system comes with 1 MB of on-board video DRAM, upgradeable to 2 MB. The
standard 1 MB DRAM consists of two 256K by 16 DRAM devices soldered to the system
board. The optional 1 MB of DRAM consists of two 256 KB by 16 modules that install in
two sockets on the system board.