
21. NOP
This command is the no-op (no operation) command.
Issuing this command has no effects on the IC internal circuits.
22. Reference Supply Selection
This command sets the internal reference voltage temperature coefficient and the circuit's on/off state.
23. Step-up Stages Count Set
This command sets the number of stages and the on/off state of the internal voltage step-up circuit.
24. Partial Drive Setup
This command sets the duty used during partial drive.
The line address starts at the display start line address and is incremented by the duty value set using this command. It
then returns to the original display start line address.
The common address starts at the display start common address and is incremented by the duty value set using this
command. It then returns to the original display start common address.
On the display screen, display starts from the common output selected by the display start common address, and only the
number of lines given by the value of the specified duty are displayed in the direction that the address is incremented in.
25. Test
This command is used for IC testing. It should not be used in end applications.
No. 6853-27/34
LC73101C
A0
RD
WR
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
1
1
1
0
0
0
1
1
A0
RD
WR
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
1
1
1
1
Test item.
A0
RD
WR
D7
D6
D5
D4
D3
D2
×
D1
D0
Setting
0
1
0
0
0
1
1
0
0
0
Internal reference voltage: Off
0
1
Temperature coefficient: –0.05%
1
0
Temperature coefficient: –0.1%
1
1
Temperature coefficient: –0.2%
A0
RD
WR
D7
D6
D5
D4
D3
D2
×
D1
D0
Setting
3
×
step-up
4
×
step-up
5
×
step-up
6
×
step-up
0
1
0
0
0
1
1
1
0
0
0
1
1
0
1
1
A0
RD
WR
D7
D6
D5
D4
D3
D2
D1
D0
Duty setting
0
1
0
1
0
0
1
0
0
0
0
80
0
0
0
1
72
0
0
1
0
64
0
0
1
1
56
0
1
0
0
48
0
1
0
1
40
0
1
1
0
32
0
1
1
1
24
1
0
0
0
16
1
0
0
1
8