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LC128641-NRLNSUN Datasheet(Hoja de datos) 9 Page - List of Unclassifed Manufacturers

No. de Pieza. LC128641-NRLNSUN
Descripción  LCD Module Specification
Descarga  20 Pages
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Fabricante  ETC2 [List of Unclassifed Manufacturers]
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LG128642-BMDWH6V
- 9 -
4.5 Display On/Off Flip-Flop
The display on/off flip-flop makes on/off the liquid crystal display. When flip-flop is reset
(logical low), selective voltage or non selective voltage appears on segment output
terminals. When flip-flop is set (logical high), non selective voltage appears on segment
output terminals regardless of display RAM data.
The display on/off flip-flop can change status by instruction. The display data at all
segments disappear while /RST is low. The status of the flip-flop is output on DB5 by
Status Read instruction.
4.6 X Page Register
X page register designates page of the internal display data RAM. Count function is not
available. An address is set by instruction.
4.7 Y Address Counter
Y address counter designates address of the internal display data RAM. An address is set
by instruction and is increased by 1 automatically by read or write operations of display
data.
4.8 Display Data RAM
Display data RAM stores a display data for liquid crystal display. 1 bit data of this RAM
corresponds to light ON (data=1) or light OFF (data=0) of 1 dot on the display panel.
4.9 Display Start Line Register
The register specifies a line in display data RAM that corresponds to the top line of LCD
panel, when displaying contents in display data RAM on the LCD panel. Bit data
(DB<0:5>) of the display start line information is written into this register by display start
line set instruction. It is used for scrolling of the liquid crystal display screen.




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