ST7528 Sitronix, ST7528 Datasheet - Page 49

• Manufacturer Part Number: ST7528
• Description: 16 Gray Scale Dot Matrix LCD Controller
• Manufacturer: Sitronix

ST7528
Set Mode Register
2-byte instruction to set Mode (EXT) and FR (Frame frequency control), BE (Booster efficiency control).
The 1st Instruction
The 2nd Instruction
Frame frequency
This command is used to set the frame frequency. This table is suitable for no partial display
Booster Efficiency
The ST7528 incorporates software configurable Booster Efficiency Command. It could be used with Voltage
multiplier to get the suitable Vout and Power consumption. Default setting is Level 2
Flag
Mode Set
Flag
EXT
Ver2.3
A0
A0
0
0
BE
FR
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
3
Description
Description
Default
EXT=0
EXT=1
RW
RW
0
0
0
1
FR
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Booster Efficiency Level 1
Booster Efficiency Level 2
FR3
2
DB7
DB7
EXT=0
The Instruction of EXT=0 Mode is available
The Instruction of EXT=1 Mode is available
0
FR2
DB6
DB6
0
FR
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
1
FR1
DB5
DB5
1
FR
49/97
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
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FR0
DB4
DB4
1
DB3
DB3
0
1
FR frequency
102 Hz ±20%
113 Hz ±20%
123 Hz ±20%
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%
77 Hz ±5%
DB2
DB2
BE
0
DB1
DB1
x'
0
2007/1/3
EXT
DB0
DB0
0
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