Specifications

96 Appendix A: Glossary
•Timer output
The signal generated by one of the programmable timers of the frame grabber
module. 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 (for example, RS-232 or
LVDS).
•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.