34 Chapter 4: Matrox Rapixo CXP hardware reference
Matrox Rapixo CXP hardware reference
This chapter provides information on the Matrox Rapixo CXP hardware. It covers
the architecture, features, and modes of the board’s acquisition section. In
addition, the chapter covers the Matrox Rapixo CXP hardware related to the
formatting and transfer of data. A summary of the features of Matrox Rapixo CXP,
as well as pin assignments for the various connectors, can be found in
Appendix B: Technical information.
Acquisition path This manual uses the term acquisition path to refer to a path that has the capability
to, for example, capture a component or stream of the video input signal. The
term independent acquisition path is used to refer to an acquisition path that can,
if required, acquire data from a video source independently from another such
path on the same frame grabber. On Matrox Rapixo CXP, each CoaXPress
connection in a CoaXPress link uses a different acquisition path.
Digitizer MIL-Lite uses the concept of a MIL digitizer to represent the acquisition path(s)
with which to grab from one input source (one CoaXPress link on Matrox Rapixo
CXP) of the specified type. When several MIL digitizers are allocated, their device
number along with their DCF identify if they represent the same path(s) (but
perhaps for a different input format) or independent path(s) for simultaneous
acquisition.
Digitizer
configuration format
To program the acquisition section, allocate a MIL digitizer using MdigAlloc()
with an appropriate DCF (supplied or created) and digitizer device number. If
you find a DCF file that is suitable for your video source, but you need to adjust
some of the more common settings, you can do so directly, without adjusting the
file, using the appropriate MIL-Lite function. For more specialized adjustments,
use the Matrox Intellicam program to adjust the DCF file.
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