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參數(shù)資料
| 型號： | KS0759 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | 81 COM / 128 SEG DRIVER & CONTROLLER FOR STN LCD |
| 中文描述： | 81的COM / 128賽格驅(qū)動 |
| 文件頁數(shù)： | 21/67頁 |
| 文件大小： | 580K |
| 代理商： | KS0759 |
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KS0759 PRELIMINARY SPEC. VER. 0.2
81 COM / 128 SEG DRIVER & CONTROLLER FOR STN LCD
17
Column Address Circuit
Column address circuit has a 7-bit preset counter that provides column address to the Display Data RAM as
shown in Figure 9. When set Column Address MSB / LSB instruction is issued, 7-bit [Y6:Y0] is updated. And,
since this address is increased by 1 each a read or write data instruction, microprocessor can access the display
data continuously. And the Column Address counter is independent of page address register.
ADC Select instruction makes it possible to invert the relationship between the column address and the segment
outputs. It is necessary to rewrite the display data on built-in RAM after issuing ADC Select instruction. Refer to
the following Figure 8.
SEG output
SEG
0
00H
1
SEG
1
01H
0
SEG
2
02H
1
SEG
3
03H
0
... ...
SEG
124
7CH
1
SEG
125
7DH
1
SEG
126
7EH
0
SEG
127
7FH
0
Column address [Y6:Y0]
Display data
LCD panel display
( ADC = 0 )
... ...
... ...
LCD panel display
( ADC = 1 )
Figure 8. The Relationship between the Column Address and the Segment Outputs
... ...
Segment Control Circuit
This circuit controls the display data by the Display ON / OFF, reverse display ON / OFF and entire display ON /
OFF instructions without changing the data in the display data RAM.
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