Data Sheet S13392EJ1V0DS00

9

5. GRAY SCALE CONTROL

Gray scale control in the

µPD16663 realizes a palette of 49 gray scales, generated by culling frames and

modulating the pulse width. From these 49 gray scales, 16 can be selected and recorded in the gray scale palette

register.

5.1 Gray Scale Palette Register

The gray scale palette register is used to preselect 16 gray scales from a palette of 49. This register is

allocated to addresses 1FF80H to 1FFFEH (even addresses only) and has the following relationship with gray

scale data.

The gray scale palette register can be set according to the mapping positions of column drivers 0 to 3, as

determined by PL0 and PL1.