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ABOV Semiconductor Co., Ltd.
11.16 LCD Driver
11.16.1 Overview
The LCD driver is controlled by the LCD control register (LCDCRH/L) and LCD driver contrast control register
(LCDCCR). The LCLK[1:0] determines the frequency of COM signal scanning of each segment output. A RESET
clears the LCD control register LCDCRH, LCDCRL and LCDCCR values to logic ‘0’.
The LCD display can continue operating during IDLE and STOP modes if a sub-frequency clock is used as LCD clock
source.
The clock and duty for LCD driver is automatically initialized by hardware, whenever LCDCRH register data value is
rewritten. So, don’t rewrite LCDCRH frequently.
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