NJU6625 New Japan Radio Co.,Ltd, NJU6625 Datasheet - Page 21

• Manufacturer Part Number: NJU6625
• Description: Nju6625 12character 1-line Dot Matrix Lcd Controller Driver With Smooth Scroll Function
• Manufacturer: New Japan Radio Co.,Ltd

Ver.2008-03-21
and DD RAM address movement are shown as follows.
The smooth scroll sequence, which is executed by the 2 dot -shift and 4 dot-shift instruction, LCD display
Example of 2 dot smooth scroll
RAM Address Set
Display ON/OFF
Write to RAM
Write to RAM
Write to RAM
Write data to
Display Shift
Display Shift
Power ON
DD RAM
Dot Shift
Dot Shift
Dot Shift
Dot Shift
Set the address
(0C)
Write character code
to the address (0C)
2 dot-shift
4 dot-shift
Seems to
execute
2 dot-shift
Write character code to
the address (00)
2 dot-shift
4 dot-shift
Seems to
execute
2 dot-shift
Write character code to
the address (00)
Preliminary
H
to DDRAM
Note) The address set instruction for scroll RAM is not needed later on.
H
H
.
.
H
, (0D)
< LCD Display >
For example, the address (0D), auto-increments to (00), at the timing
of the write to RAM instruction, then the address (00), returns to 1st
line scroll RAM position by the display shift instruction.
H
.
1ch 2
00 01 02
00 01 02
00 01 02
00 01 02
01 02 03
01 02 03
01 02 03
02 03 04
Setting address in (AC)
< DD RAM Address >
3
10 11 12
NJU6625
0B 0C 0D 00 01
09 0A 0B 0C 0D
09 0A 0B 0C 0D
09 0A 0B 0C 0D
09 0A 0B 0C 0D
0A 0B 0C 0D 00
0A 0B 0C 0D 00
0A 0B 0C 0D 00
Scroll RAM
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