S6B0755 Datasheet, PDF (41/68 Pages) Samsung semiconductor – 128 SEG / 65 COM DRIVER & CONTROLLER FOR STN LCD

128 SEG / 65 COM DRIVER & CONTROLLER FOR STN LCD
PRELIMINARY SPEC. VER. 1.0
S6B0755
Set Modify-Read
This instruction stops the automatic increment of the column address by the read display data instruction, but
the column address is still increased by the Write display data instruction. And it reduces the load of
microprocessor when the data of a specific area is repeatedly changed during cursor blinking or others. This
mode is canceled by the reset Modify-read instruction.
RS
RW
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
0
0
1
1
1
0
0
0
0
0
Reset Modify-Read
This instruction cancels the Modify-read mode, and makes the column address return to its initial value just
before the set Modify-read instruction is started.
RS
RW
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
0
0
1
1
1
0
1
1
1
0
Set Page Address
Set Column Address (N)
Set Modify-Read
Dummy Read
Data Read
Data Write
No
Change Complete ?
Yes
Reset Modify-Read
Return Column Address (N)
Data Process
Figure 28. Sequence for Cursor Display
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