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參數(shù)資料
| 型號： | S-4543A |
| 廠商： | Seiko Instruments Inc. |
| 英文描述： | Dot Matrix LCD Driver(點陣LCD驅(qū)動器) |
| 中文描述： | 點陣LCD驅(qū)動器（點陣液晶驅(qū)動器） |
| 文件頁數(shù)： | 18/27頁 |
| 文件大?。?/td> | 163K |
| 代理商： | S-4543A |
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Dot Matrix LCD Driver
S-4543A
Seiko Instruments Inc.
17
COMMANDS
For S-4543A, the command functions can be set by the combination of A
0
and E1, and E2 and R/WX. The
commands are set for S-4543A, by the internal timings different from the instructions of MPU. When displayed data
writing in operational description, read-out timing chart, and timing characteristics chart are satisfied, the commands
can be input without checking the busy flag. Therefore, high speed operation and MPU load reduction are attainable.
For the command list, refer to Table 18.
1. Display ON/OFF
The logic D
0
controls the display ON/OFF. In display OFF, the screen is compelled to be all-off regardless of the
display RAM data. The display RAM data does not change.
In display ON, normal display is on according to the display RAM data. When the display ON command is input,
display OFF is canceled.
When setting display all-lit ON in the display OFF status, it changes to Power save mode (see the Power Save
command.)
2. Display Start Line Set
The line address of the display data RAM which indicates the display start line is set. The display start line
corresponding to COM
0
, as shown in the figure, indicates the correlation between the display data RAM and the
address. The display area read from the display data RAM corresponds to the number of the lines for the duty set
using the Duty select command. The line address is automatically incremented synchronizing with the common
output. Changing the display START line using this command enables a smooth scroll on the screen or a page
change .
3. Page Address Set
The page address is set when accessing the display data RAM from the MPU. It is possible to access the display
data RAM from the MPU using the page address and the column address. Refer to the figure 7 which shows the
correlation between the display data RAM and the address. Even if the page address is changed, it has no
influence, such as changing of the screen during operation.
4. Column Address Set
The column address is set when accessing the display data RAM from the MPU. When accessing the display data
RAM from the MPU, the column address is incremented by one. When accessing the successive column address
from the MPU, it is possible to access the display data without setting the column address each time. The
automatic increment stops after the uppermost column address is accessed.
When selecting “Reverse” using the “ADC select” command, the lowermost column address is 13H; the uppermost
column address is 4FH.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
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