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VGA principle (draft version)

Overview from wiki

Video Graphics Array

http://en.wikipedia.org/wiki/Video_Graphics_Array

VGA port (pin out)

VGA principle (signal generation)

Thank to: http://lslwww.epfl.ch/pages/teaching/cours_lsl/ca_es/VGA.pdf

Mấy điều về VGA
- 3 dây tín hiệu chỉ thị màu, truyền tín hiệu tương tự
- 2 tín hiệu đồng bộ
+ H-SYNC: tín hiệu đồng bộ frame, khi quét hết 1 frame (toàn bộ 1 image) thì sẽ có tín hiệu này
+ V-SYNC: tín hiệu đồng bộ dòng, cữ mỗi dòng thì lại có tín hiệu này.


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