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102 Appendix A: Glossary
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UART
Universal Asynchronous Receiver/Transmitter. A component that handles
asynchronous communication through an RS-232 serial interface.
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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.
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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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