ST7556 Sitronix Technology, ST7556 Datasheet - Page 28

• Manufacturer Part Number: ST7556
• Description: 65 x 102 Dot Matrix LCD Controller/Driver
• Manufacturer: Sitronix Technology

ST7556
Referential Instruction Setup Flow: Initializing without the built-in Power Supply Circuits
User System Setup by External Pins
Start of Initialization
Power ON(VDD-VSS) Keeping the /RES Pin="L"
Waiting for Stabilizing the Power
Release the reset state. (/RESB pin="H")
Waiting reset circuit stablized(>1ms)
Set Power Save
Function set PD=0 ,V=0 , H=1
SET Bias system
S/W Internal register initial
Function set PD=0 , V=0 , H=0
Display control D=1 E=0 (Normal)
Set X , Y address
Waiting for Stabilizing the LCD Power Levels
End of Initialization
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Fig 15. Initializing without Built-in Power Supply Circuits
Ver 2.2
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2005/10/05