NJU6676 New Japan Radio Co., Ltd., NJU6676 Datasheet - Page 20

• Manufacturer Part Number: NJU6676
• Description: 64-Common x 132-Segment plus 1-Icon Bit Map Type LCD Controller and Driver
• Manufacturer: New Japan Radio Co., Ltd.

3-11) LCD bias set
This instruction selects LCD bias value.
3-12) Read modify write
This instruction controls column address increment.
By using of this instruction, the column address can’t increment when read operation but it can
increment when write operation. This status will be continued until the below -mentioned “end”
instruction will be issued.
This instruction can reduce the load of MPU, during the display data in specific DDRAM area is
repeatedly changed for cursor blink or others.
The sequence of cursor blink display
A0
A0
0
0
RD
RD
1
1
WR
WR
0
0
D7
D7
1
1
D6
D6
0
1
No
D5
D5
1
1
Column address set
Read modi f y write
Page address set
D4
D4
0
0
Dummy read
Dummy read
Data write
Data write
Data read
Data read
Finish?
End
D3
D3
0
0
Yes
Repeat
D2
D2
0
0
D1
D1
1
0
D0
D0
0
1
0
Inverse data in MPU
Set address
for cursor line
Start
“read
End
“read
modify
modify
LCD bias
PRELIMINARY
NJU6676
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