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vga upd7220

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Amber
2023-07-14 20:40:08 -04:00
parent 706023094f
commit 715fd08328
2 changed files with 99 additions and 0 deletions
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docs/video_timing.txt Normal file
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5MHZ IS VALID
128.0 K VRAM, up to 524280 pixels.
Pixel Clock (Mhz) > 25.175
Signal Clock (Mhz) > 5
Horizontal Resolution > 640
Vertical Resolution > 480
Horzontal Front Porch: 6
Horzontal Sync: 8
Horzontal Back Porch: 5
Vertical Front Porch: 10
Vertical Sync: 4
Vertical Back Porch: 18
Expected exact frequency: 59.15 Hz
Image pixel count: 307200 of maximum 524280
Words per line: 160
8MHZ IS VALID
80.0 K VRAM, up to 327680 pixels.
Pixel Clock (Mhz) > 25.175
Signal Clock (Mhz) > 8
Horizontal Resolution > 640
Vertical Resolution > 480
Horzontal Front Porch: 11
Horzontal Sync: 13
Horzontal Back Porch: 7
Vertical Front Porch: 10
Vertical Sync: 4
Vertical Back Porch: 18
Expected exact frequency: 58.88 Hz
Image pixel count: 307200 of maximum 327680
Words per line: 160
800X600
128.0 K VRAM, up to 524288 pixels.
Pixel Clock (Mhz) > 40
Signal Clock (Mhz) > 8
Horizontal Resolution > 800
Vertical Resolution > 600
Horzontal Front Porch: 8
Horzontal Sync: 13
Horzontal Back Porch: 7
Vertical Front Porch: 10
Vertical Sync: 4
Vertical Back Porch: 18
Expected exact frequency: 58.6 Hz
Image pixel count: 480000 of maximum 524288
Words per line: 200