HD66750 Datasheet, PDF (65/96 Pages) Hitachi Semiconductor – 128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions

HD66750/1
Window Cursor Display Function
The HD66750/1 displays the window cursor by specifying a window area. The horizontal display position of the
window cursor is specified with the horizontal cursor position register (HS6Ð0 to HE6Ð0), and the vertical display
position is specified with the vertical cursor position register (VS6Ð0 or VE6Ð0). In these display position setting
registers, ensure that HS6Ð0 ≤ HE6Ð0 and VS6Ð0 ≤ VE6Ð0. If these relationships are not satisfied, normal display
cannot be attained. In addition, if the setting is VS6Ð0 = VE6Ð0 = 00H, a cursor is displayed on a raster-row at the
most-upper edge of the screen.
This window cursor can automatically display the hardware-supported block cursor, highlight window, or menu
bar. The CM1Ð0 bits select the following four displays in each window cursor:
1. White-blink cursor (CM1Ð0 = 00): Alternately blinks between the normal display and an all-white (unlit)
display
2. Black-blink cursor (CM1Ð0 = 01): Alternately blinks between the normal display and an all-black (all lit)
display
3. Black-and-white reversed cursor (CM1-0 = 10): Black-and-white-reversed normal display (no blinking)
4. Black-and-white-reversed blink cursor (CM1Ð0 = 11): Alternately blinks between the normal display and a
black-and-white-reversed display
The above blinking display is switched in a 32-frame unit.
In vertical scrolling, note that this window cursor does not automatically move vertically.
HS+1
VS+1 =>
VE+1 =>
HE+1
HS+1
VS+1 =>
VE+1 =>
Blink
display
HE+1
Figure 43 White Blink Cursor Display
HITACHI
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