ST7571 Sitronix Technology, ST7571 Datasheet - Page 32

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

www.DataSheet4U.com
ST7571
9. INSTRUCTION DESCRIPTION
9.1.1 Set Mode
This 2-byte instruction specifies frame frequency (FR[3:0]) and booster efficiency (BE[1:0])
The 1
The 2
Frame Frequency
FR[3:0] specifies the frame frequency:
Booster Efficiency
The efficiency of internal Booster is configurable by BE[1:0]. The optimized setting is Level-3.
Ver 1.5a
BE1
A0
A0
0
0
st
nd
0
0
1
1
FR3
Instruction
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Instruction
R/W
R/W
BE0
0
0
0
1
0
1
FR2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Booster Efficiency Level 1
Booster Efficiency Level 2
Booster Efficiency Level 3
Booster Efficiency Level 4
DB7
DB7
FR3
0
DB6
DB6
FR2
FR1
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
DB5
DB5
FR1
1
32/76
Description
FR0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
DB4
DB4
FR0
1
Frame Frequency
DB3
DB3
BE1
1
102 Hz ±20%
123 Hz ±20%
113 Hz ±20%
77 Hz ±10%
51 Hz ±20%
55 Hz ±20%
58 Hz ±20%
63 Hz ±20%
67 Hz ±20%
68 Hz ±20%
70 Hz ±20%
73 Hz ±20%
75 Hz ±20%
80 Hz ±20%
85 Hz ±20%
91 Hz ±20%
DB2
DB2
BE0
0
DB1
DB1
0
x’
2009/7/21
DB0
DB0
0
0