User`s manual

DIGITAL-LOGIC AG MSLB-P5 Manual V0.3
PRELIMINARY 86
4.11 HiQ Video Multimedia Support
The 69000 uses independent multimedia capture and display systems on chip. The capture system
places data in display memory (usually off screen) and the display system places the data in a window
on the screen.
The capture system can receive data from the video portin the 422 YUV format. The YUV data are
served from the VideoInputProcessor (VIP) type SAA7111A. The VIP converts the analog CVBS in-
formation, coming from a videocamera, into the YUV digital information.
The YUV input data can also be scaled down in the 69000 bevor storage in the display memory.
Capture of input data may also be double buffered for smoothing and to prevent image tearing. To
better support MPEG2 (DVD) video decompression, the 69000 includes a line buffer to directly sup-
port the native format of MPEG2 data of 720 pixels wide.
The capture engine also supports image mirroring and rotation for camera support. This feature is im-
portant for applications such as video teleconferencing because it allows the image movements to ap-
pear on the display as it actually occurs.
The display system can independently place YUV data from anywhere in the display memory into an
on-screen window which can be any size and located at any pixel boundary (YUV data is converted to
RGB „on-the-fly“). This is important for the 69000 since the video must be stored in the integrated
2MB frame buffer and thus optimized to require very little space. Interlanced and non-interlanced data
are both supported in the capture and display system.
Display Modes Supported
The 69000 supports the modes which appear in the table below.
Resolution: Color (bpp) Refresh Rates (Hz)
640 x 480 8 60, 75, 85
640 x 480 16 60, 75, 85
640 x 480 24 60, 75, 85
800 x 600 8 60, 75, 85
800 x 600 16 60, 75, 85
800 x 600 24 60, 75, 85
1024 x 768 8 60, 75, 85
1024 x 768 16 60, 75, 85
1280 x 1024 8 60