Datasheet

SH1107
39
18. Read-Modify-Write: (E0H)
A pair of Read-Modify-Write and End commands must always be used. In page addressing mode, once read-modify-write is
issued, column address is not incremental by read display data command but incremental by write display data command
only. In vertical addressing mode, once read-modify-write is issued, page address is not incremental by read display data
command but incremental by write display data command only. It continues until End command is issued. When the End is
issued, column address or page address (it depends on the addressing mode) returns to the address when
read-modify-write is issued. This can reduce the microprocessor load when data of a specific display area is repeatedly
changed during cursor blinking or others.
A0
RD
(E)
WR
(
WR/
)
D7 D6 D5 D4 D3 D2 D1 D0
0 1 0 1 1 1 0 0 0 0 0
Cursor display sequence:
Set Page Address
Set Column Address
Read-Modify-Write
Dummy Read
Read Data
Write Data
Completed?
End
Yes
No
Data process
Figure 16