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參數(shù)資料
| 型號： | NT7501H-BDT |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 33 X 100 RAM-Map LCD Controller/Driver |
| 中文描述： | 33 × 100 RAM的地圖LCD控制器/驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 23/38頁 |
| 文件大小： | 319K |
| 代理商： | NT7501H-BDT |
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NT7501
23
14. Reset
Resets the Initial Display Line register, Column Address counter, Page Address register, and output status selector circuit
to their initial status. The Reset command does not affect the contents of the display RAM. Refer to the Reset circuit
section of FUNCTION DESCRIPTION.
A0
E
RD
W
R
WR
0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
1
1
0
0
0
1
0
The Reset command cannot initialize the LCD power supply. Only the Reset signal to the RES pad can initialize the
supply.
15. Output Status Select Register
Applicable to the NT7501. When D is high or low, the scan direction of the COM output pad is selectable. Refer to the
Output Status Selector Circuit in the FUNCTION DESCRIPTION for details.
A0
E
RD
W
R
WR
0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
1
0
0
D
*
*
*
D
D = 0: Normal
*: Invalid bit
16. Set Power Control
Selects one of eight power circuit functions using a 3-bit register. An external power supply and part of the on-chip power
circuit can be used simultaneously. Refer to the Power Supply Circuit section of the FUNCTION DESCRIPTION for details.
: Selects the scan direction of COM output pad
(COM0
→
COM31)
D = 1: Reverse (COM31
→
COM0)
A0
E
RD
W
R
WR
0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
0
1
0
1
A2
A1
A0
When A0 goes low, the voltage follower turns off. When A0 goes high, it turns on
When A1 goes low, the voltage regulator turns off. When A1 goes high, it turns on
When A2 goes low, the voltage booster turns off. When A2 goes high, it turns on
17. Set Electronic Control
Adjusts the contrast of the LCD panel display by changing the V0 LCD drive voltage that is output by the voltage regulator
of the on-board power supply.
This command selects one of the 32 V0 LCD drive voltages by storing data in the 5-bit register. The V0 voltage adjusting
range should be determined depending on the external resistance. Refer to the Voltage Regulator section of the
FUNCTION DESCRIPTION for details.
A0
E
RD
W
R
WR
0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
0
0
A4
A3
A2
A1
A0
A4
0
0
0
A3
0
0
0
A2
0
0
0
:
1
1
1
A1
0
0
1
A0
0
1
0
I V0 I
LOW
"
1
1
1
1
1
1
0
1
1
1
0
1
High
Set register to (D4, D3, D2, D1, D1, D0) = (0, 0, 0, 0, 0) to suppress the electronic control function.
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