Difference between revisions of "68k:Ports:600012"

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[[Category:68k:Ports:By Address|600012]] [[Category:68k:Ports:By Name|LCD logical size]]
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[[Category:68k:Ports:By Address|600012]] [[Category:68k:Ports:By Name|LCD logical height]]
  
* Bits 13-8: LCD logical width = (64-n)*2 bytes ((64-n)*16 pixels)
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== LCD logical height ==
* Bits 7-0: LCD logical height = (256-n)
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If the LCD logical height is less, the screen will appear darker, because each line is visited more often.
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* Bits 7-0: LCD logical height = (256-n)
  
This port can be written to one byte at a time without disturbing the other byte.
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The LCD logical height is the number of row syncs (RS) per frame sync (FS). If the LCD logical height is less, the screen will appear darker, because each line is visited more often.

Latest revision as of 23:32, 4 November 2006


LCD logical height

  • Bits 7-0: LCD logical height = (256-n)

The LCD logical height is the number of row syncs (RS) per frame sync (FS). If the LCD logical height is less, the screen will appear darker, because each line is visited more often.