Glossary 55
• Saturate
To replace overflows (or underflows) in an operation with the highest (or lowest)
possible value that can be held in the destination buffer of the operation.
• SRAM QDRII
Static Random Access Memory Quad Data Rate II. A type of memory used for
processing. SRAM allows Matrox RadientPro CL to access data at a very high
speed, in a random or contiguous manner. The memory interface is actually
double data-rate, but is tagged quad data-rate because it has independent read and
write ports.
• Timer output
The signal generated by one of the programmable timers of the frame grabber.
The timer output can be used to control external hardware. For example, it can
be fed to the video source to control its exposure time or used to fire a strobe light.
• UART
Universal Asynchronous Receiver/Transmitter. A component that handles
asynchronous communication through a serial interface.
• Vertical blanking period
The portion of a video signal after the end of a frame and before the beginning of
a new frame
.
During this period, the video signal is "blank".
See also
horizontal blanking period
.
