ST7571 Sitronix Technology, ST7571 Datasheet - Page 38

• Manufacturer Part Number: ST7571
• Description: 4 Gray Scale Dot Matrix LCD Controller/Driver
• Manufacturer: Sitronix Technology

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ST7571
9.1.10 Set Display Duty
This 2-byte instruction sets the display duty within the range of 1/(16+1) to 1/(128+1) to realize partial display.
The 1
The 2
NOTE: The duty includes the duty for ICON.
Ver 1.5a
L7
0
0
0
0
0
0
1
1
1
:
:
:
:
A0
A0
0
0
st
nd
Instruction
Instruction
L6
0
0
0
0
1
1
0
0
1
:
:
:
:
R/W
R/W
0
0
L5
0
0
0
0
1
1
0
0
1
:
:
:
:
DB7
DB7
L7
0
L4
0
0
1
1
0
1
0
0
1
:
:
:
:
Fig. 23 Sequence for Setting Display Duty
L3
DB6
DB6
0
1
0
0
0
1
0
0
1
:
:
:
:
L6
1
L2
0
1
0
0
1
1
0
0
1
:
:
:
:
DB5
DB5
L5
0
38/76
L1
0
1
0
0
0
1
0
0
1
:
:
:
:
DB4
DB4
L4
0
L0
0
1
0
1
0
1
0
1
1
:
:
:
:
DB3
DB3
Selected Partial Duty Ratio
L3
1
No Operation
No Operation
1/(100+1)
1/(127+1)
1/(128+1)
1/(16+1)
1/(17+1)
DB2
DB2
L2
0
:
:
DB1
DB1
L1
x
2009/7/21
DB0
DB0
L0
x