NJU6677 데이터 시트보기 (PDF) - Japan Radio Corporation
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NJU6677 Datasheet PDF : 45 Pages
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NJU6677
(3-6) Write Display Data
This instruction writes the 8-bit data on the data bus into the Display Data RAM. The column address in-
creases "1" automatically after data writing, therefore, the MPU can write the 8-bit data into the Display Data
RAM continuously without any address setting after the start address setting.
R /W
A0 RD WR D7
D6
D5
D4
D3
D2
D1
D0
1
1
0
W R ITE DATA
(3-7) Read Display Data
This instruction reads out the 8-bit data from Display Data RAM addressed by the column and page address.
The column address increase "1" automatically after data reading out, therefore, the MPU can read out the 8-
bit data from the Display Data RAM without any address setting after the start address setting. One time of
dummy read must operate after column address set as the explanation in "(5-4) Access to the Display Data
RAM and Internal Register". In the serial interface mode, the display data is not read out.
R /W
A0 RD WR D7
D6
D5
D4
D3
D2
D1
D0
1
0
1
R E A D D ATA
(3-8) Normal or Inverse On/Off Set
This instruction changes the condition of display turn on and off as normal or inverse. The contents of Display
Data RAM is not changed by this instruction execution.
R /W
A0 RD WR D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
1
0
1
0
0
1
1
D
D 0 : Normal
1 : Inverse
RAM data "1" correspond to "On"
RAM data "0" correspond to "On"
(3-9) Whole Display On
This instruction turns on the all pixels indipendent of the contents of Display Data RAM. In this time, the
contents of Display Data RAM is not changed and kept. This instruction takes precedence over the "Normal or
Inverse On/Off Set Instruction".
R /W
A0 RD WR D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
1
0
1
0
0
1
0
D
D 0 : Normal Display
1 : Whole Display turn on
When Whole Display On Instruction is executed in the Display Off status, the internal circuits go
to the power save mode (refer to the (s) Power Save).
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