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5 cards from this section. Quick, good the night before a test.
What does HSYNC control?
Think about what happens at the end of a row of pixels.
Define VSYNC.
Consider what happens when the whole screen refreshes.
What does HSYNC control?
Consider what happens in a line scan.
Is VSYNC responsible for timing the refresh cycles of the screen?
It relates directly to frame refresh timing.
A new monitor specification states HSYNC must be set to 64 microseconds and the front porch to 10 microseconds. Calculate the total time for one horizontal scan line including back porch if the back porch is set to 20 microseconds.
Remember to add all the time periods involved in one cycle.
If a VGA output supports a vertical refresh rate of 60 Hz, what is the duration needed for one complete frame refresh, and how does this relate to VSYNC?
Consider how refresh rate dictates the timing of gegraphics output.
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