HD66724 Datasheet, PDF (42/117 Pages) Hitachi Semiconductor – (Graphics LCD Controller/Driver with Key Scan Function)

HD66724/HD66725
B: The character indicated by the cursor blinks when B is 1. The blinking is displayed as switching
between all black dots and displayed characters every 32 frames. The cursor and blinking can be set to
display simultaneously. When LC and B = 1, the blinking is displayed as switching between all white dots
and displayed characters.
R/W RS DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 1 0 1 B/W C B
Figure 12 Cursor Control Instruction
Alternating display
(every 32 frames)
i) White-black inverting display example (When LC = 0)
ii) 8th raster-row
cursor display
Alternating
display
ii) Blink display example
Figure 13 Cursor Control Examples
Display On/Off Control
D: Display is on when D is 1 and off when D is 0. When off, the display data remains in DDRAM, and can
be displayed instantly by setting D to 1. When D is 0, the display is off with the SEG1 to SEG72 (96)
outputs, COM1 to COM24 outputs, and COMS1/2 output set to the GND level and off. Because of this, the
HD66724/HD66725 can control charging current for the LCD with AC driving.
CEN: Switches the common driver position from COM1 to COM8. When CEN = 1, it outputs the first line
of COM1 to COM8 in the center of the screen. For details, see the Partial-Display-On Function section.
LC: When LC = 1, a cursor attribute is assigned to the line that contains the address counter (AC) value.
Cursor mode can be selected with the B/W, C, and B bits. Refer to the Line-Cursor Display section.
R/W RS DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 1 1 0 D CEN LC
Figure 14 Display On/Off Control Instruction
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