hd66740 Renesas Electronics Corporation., hd66740 Datasheet - Page 23
hd66740
Manufacturer Part Number
hd66740
Description
112 X 80-dot Graphics Lcd Controller/driver - Hitachi Semiconductor
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.HD66740.pdf
(95 pages)
- Current page: 23 of 95
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Display On/Off Control
D: Display is on when SW = 0 and D = 1 and off when D = 0. When off, the display data remains in the
DDRAM or CGRAM, and can be displayed instantly by setting D = 1. When D is 0, the display is off
with the SEG1 to SEG112 outputs and COM1 to COM80 outputs set to the GND level. Because of this,
the HD66740 can control charging current for the LCD with AC driving.
DL10: When SW = 0, DL10 can be set. When DL10 = 1, the 10th line is displayed at double height.
DL9–DL7: When SW = 1, DL9–DL7 can be set.
line. When DL7 = 1, the seventh line is displayed at double height. Double-height display is used for
the eighth line when DL8 = 1 and for the ninth line when DL9 = 1.
first to the sixth lines, control them by using DL1–DL6 bits in the display-line control instruction.
R/W RS DB7
0
Figure 7
0
0
DB6 DB5 DB4 DB3 DB2 DB1
0
Display On/Off Control Instruction
1
1
23
Double-height display is specified for any display
0
DL9
D
DL10
DL8 DL7
DB0
For double-height display for the
0
(SW = 0)
(SW = 1)
HD66740
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