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參數(shù)資料
| 型號： | NT7502H-TABF1 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 65 X 132 RAM-Map LCD Controller / Driver |
| 中文描述： | 65 × 132 RAM的地圖LCD控制器/驅(qū)動器 |
| 文件頁數(shù)： | 26/54頁 |
| 文件大?。?/td> | 687K |
| 代理商： | NT7502H-TABF1 |
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NT7502
10. Entire Display ON
Forcibly turns the entire display on regardless of the contents of the display data RAM. At this time, the contents of the
display data RAM are held.
This command has priority over the Normal/Reverse Display command. When D is low, the normal display status is
provided.
A0
E
RD
W
R
/
WR
0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
0
1
0
0
1
0
D
When D is high, the entire display ON status is provided. If the Entire Display ON command is executed in the display OFF
status, the LCD panel enters Power Save mode. Refer to the Power Save section for details.
11. Set LCD Bias
This command selects the voltage bias ratio required for the liquid crystal display.
Duty
A0
E
RD
WR
D7 D6 D5 D4 D3
D2
D1
D0
1/33
1/49
1/55
1/65
0
1
0
1
0
1
0
0
0
1
0
1/6 bias
1/8 bias
1/8 bias
1/9 bias
1
1/5 bias
1/6 bias
1/6 bias
1/7 bias
W
R
/
12. Read-Modify-Write
A pair of Read-Modify-Write and End commands must always be used. Once Read-Modify-Write is issued, column address
is not incremental by Read Display Data command but incremental by Write Display Data command only. It continues until
End command is issued. When the End is issued, column address returns to the address when Read-Modify-Write is
issued. This can reduce the microprocessor load when data of a specific display area is repeatedly changed during cursor
blinking or other events.
A0
E
RD
W
R
/
WR
0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
1
1
0
0
0
0
0
Note: Any command except Read/Write Display Data and Set Column Address can be issued during Read-Modify-Write
mode.
Cursor display sequence
Set Page Address
Set Column Address
Read-Modify-Write
Dummy Read
Read Data
Write Data
Completed
End
Yes
No
Data process
26
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