108 Appendix A: Glossary
•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.
• UART
Universal Asynchronous Receiver/Transmitter. A component that handles
asynchronous communication through a serial interface (for example, RS-232 or
LVD S).
• 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.
• Vertical synchronization signal
The part of a video signal that indicates the end of a frame and the start of a new
one.
See also horizontal synchronization signal.
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