ST7522 Sitronix, ST7522 Datasheet - Page 17

• Manufacturer Part Number: ST7522
• Description: 17 x 96 Dot Matrix LCD Controller
• Manufacturer: Sitronix

ST7522
The Reset Circuit
When the RES
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When the power is turned on, the IC internal state becomes unstable, and it is necessary to initialize it using the RES
After the initialization, each input terminal should
be controlled normally.
While RES
terminals D0 to D7 are not affected.
Ver 1.0c
Display OFF
Static drive is turned OFF.
ADC select: Normal (ADC command D0 = 0)
Display all point on is select to normal
Display normal/reverse is select to normal
Power control register: (D2, D0) = (0, 0)
Serial interface internal register data clear
1/6 bias is selected
1/17 duty is selected.
Read modify write OFF
Column address set to Address 0
Page address set to Page 0
Start line set to first line
Electronic contrast register = 35H(max:3FH)
OSC frequency set = 08H
Follower input voltage set =02H
Follower amplified ratio = 06H
Booster input voltage set = 00H
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is “L,” the oscillator works but the display timing generator stops, and the CL, FR, terminals are fixed to “H.” The
input comes to the “L” level, these LSIs return to the default state. Their default states are as follows:
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2002/07/10
terminal.
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