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6 Chapter 1: Introduction
BNC
connector
Video
Input
Connector
(DB-25)
Opto-isolated Aux in
Matrox CronosPlus
Matrox CronosPlus is a standard monochrome and composite color analog frame
grabber for extremely cost-sensitive imaging applications. This board is available
in a PCI form factor and can acquire different types of standard video formats
using its video decoder.
CVBS0 / Y
VID_IN0
VID_IN1
VID_IN2
VID_IN3
CHROMA
TTL Aux in
TTL Aux out
The video decoder can accept composite (CVBS) and component S-video (Y/C)
in NTSC/PAL formats, and monochrome video in RS-170/CCIR. Grabbed data
can be converted into the following formats with square pixels: BGR32 packed,
BGR24 packed, YUV16 packed (stored in YUYV format), and 8-bit
monochrome. Formatting features include cropping (ROI capture), arbitrary
downscaling, and vertical/horizontal flipping.
You can attach and switch between 4 monochrome/CVBS video sources, or 1 Y/C
and 3 monochrome/CVBS video sources.
CVBS1
4:1
CVBS2
MUX
CVBS3
C
3
4
Low-
pass
filter
Low-
pass
Video Decoder
filter
and
PCI Interface
32-bit 33MHz, Host PCI Bus
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