HD66750 Datasheet, PDF (32/96 Pages) Hitachi Semiconductor – 128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions

HD66750/1
Cursor Control
C: When C = 1, the window cursor display is started. The display mode is selected by the CM1Ð0 bits, and
the display area is specified in a dot unit by the horizontal cursor position register (HS6Ð0 and HE6Ð0 bits)
and vertical cursor position register (VS6Ð0 and VE6Ð0 bits). For details, see the Window Cursor Display
section.
CM1Ð0: The display mode of the window cursor is selected. These bits can display a white-blink cursor,
black-blink cursor, black-and-white reversed cursor, and black-and-white-reversed blink cursor.
R/W RS DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 1 * * * * * * * * * * * * * C CM1 CM0
Figure 12 Cursor Control Instruction
Table 13 CM Bits and Window Cursor Display Mode
CM1 CM0 Window Cursor Display Mode
0
0
White-blink cursor (alternately blinking between the normal display and an all-white
display (all unlit))
0
1
Black-blink cursor (alternately blinking between the normal display and an all-black
display (all lit))
1
0
Black-and-white reversed cursor (black-and-white-reversed normal display (no
blinking))
1
1
Black-and-white-reversed blink cursor (alternately blinking the black-and-white-
reversed normal display)
Double-height Display Position
DS6Ð0: Specify any common raster-row position where the double-height display starts. Note that no
scrolling is done by vertical scrolling. For details, see the Double-height Display section.
DE6-0: Specify any common raster-row position where the double-height display ends. Set the end
position of the double-height display after the start position of the double-height display, satisfying the
relationship DS6Ð0 ≤ DE6Ð0. When the area specifying the double height has an odd number of raster-
rows, the double-height display is done for the DE6Ð0 + 1 raster-rows.
When the double-height display is not used, set the DHE bit in the display-control instruction register to 0.
R/W RS DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 1 * ^{DE6 DE5 DE4 DE3 DE2 DE1 DE0} * DS6 DS5 DS4 DS3 DS2 DS1 DS0
Figure 13 Double-height Display Position Instruction
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