Datasheet

SH1107
40
19. End: (EEH)
Cancel Read-Modify-Write mode and return column address or page address (it depends on the RAM addressing mode) to
the original address (when Read-Modify-Write is issued.)
A0
RD
(E)
WR
( WR / )
D7 D6 D5 D4 D3 D2 D1 D0
0 1 0 1 1 1 0 1 1 1 0
Read-Modify-Write
mode is selected
Return
N N+1 N+2 N+m NN+3
End
Column address
(Page address)
Figure 17
20. NOP: (E3H)
No Operation Command.
A0
RD
(E)
WR
(
WR/
)
D7 D6 D5 D4 D3 D2 D1 D0
0 1 0 1 1 1 0 0 0 1 1
21. Write Display Data
Write 8-bit data in display RAM. As the column address is incremental by 1 automatically after each write, the
microprocessor can continue to write data of multiple words.
A0
RD
(E)
WR
(
WR/
)
D7 D6 D5 D4 D3 D2 D1 D0
1 1 0 Write RAM data
22. Read ID
A0
RD
(E)
WR
(
WR/
)
D7 D6 D5 D4 D3 D2 D1 D0
0 0 1 BUSY ON/OFF ID
BUSY: When high, the SH1107 is busy due to internal operation or reset. Any command is rejected until BUSY goes
low. The busy check is not required if enough time is provided for each cycle.
ON/OFF: Indicates whether the display is on or off. When it goes low, the display turns on. When it goes high, the
display turns off. This is the opposite of Display ON/OFF command.
ID： These bits contain the information of the chip. They output bits 000111(it means 07).
23. Read Display Data
Read 8-bit data from display RAM area specified by column address and page address. As the column address or page
address (depends on the mode of memory addressing) is increment by 1 automatically after each write, the microprocessor
can continue to read data of multiple words. A single dummy read is required immediately after column address being setup.
Refer to the display RAM section of FUNCTIONAL DESCRIPTION for details. Note that no display data can be read via the
serial interface.
A0
RD
(E)
WR
(
WR/
)
D7 D6 D5 D4 D3 D2 D1 D0
1 0 1 Read RAM data