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HCS12 VGA generator

Posted December 23, 2011 by Chris

“My implementation produces 640×480 signals, but the display is limited to 80×60 blocks…the HCS12 bus can run at 25MHz max, and it takes at least 5 bus cycles to write a byte to an I/O port. For normal VGA, pixels must be written out at a rate of 25MHz.”

2 Responses to “HCS12 VGA generator”

  1. HCS12 VGA generator | Vga Port Says:

    […] post: HCS12 VGA generator Uncategorizedbus-cycles, display, hcs12, pixels-must, produces-640×480, takes-at-least, vga, […]

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