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HD66717 Datasheet, PDF (42/90 Pages) Hitachi Semiconductor – (Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver)
HD66717
k. Annunciator control
DA = 0: Annunciator display off
2. RAM data initialization
a. DDRAM
All addresses are initialized to 20H by the clear display instruction
b. CGRAM/SEGRAM
Not automatically initialized by reset input; must be initialized by software while display is off
(DC and DS = 0)
c. Annunciator data
Not automatically initialized by reset input; must be initialized by software while display is off
(DA= 0)
3. Output pin initialization
a. LCD driver output pins (SEG/COM, ASEG/ACOM): Outputs VCC level
b. Booster output pins (V5OUT2 and V5OUT3): Outputs GND level
c. Oscillator output pin (OSC2): Outputs oscillation signal
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