NCR RealPOS 70 - Grayscale Display Mode

Chapter 11: APA Customer Display Interface 11-5
Grayscale Display Mode
Inthegrayscaledisplaymode,imagedataisstoredinDDRAMPages
0,1,2,and3.Thedisplaycontrollercombinesthedatafromall4pages
tocreateagrayscaleimage.Imagedatabitsadd25%relative
luminancetotheimageforeachpagetheyarestoredinaslogic
1ʹs.All
ofthe8192pixelsinanimagecanbeconfiguredfor0%,25%,50%,75%,
or100%relativeluminanceindependently.Overallluminancecanalso
besimultaneouslycontrolledto64levels.
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