MC9S08LC60 Datasheet, PDF(156/358 Page) Freescale Semiconductor, Inc – Microcontrollers

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MC9S08LC60 Datasheet, PDF (156/358 Pages) Freescale Semiconductor, Inc – Microcontrollers

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Liquid Crystal Display Driver (S08LCDV1)

9.5.1 Initialization Sequence

The list below provides a recommended initialization sequence for the LCD module.

1. LCDCLKS register

a) Conï¬gure LCD clock source (SOURCE bit)

b) Adjust the clock source to achieve a value for LCDCLK of ~ 32 kHz (CLKADJ[5:0] & DIV16)

2. LCDSUPPLY register

a) Enable charge pump (LCDCPEN bit)

b) Conï¬gure the LCD module for doubler or tripler mode (LCDCPMS bit)

c) Conï¬gure charge pump clock (CPCADJ[1:0])

d) Conï¬gure HDRVBUF

e) Conï¬gure op amp switch (BBYPASS bit)

f) Conï¬gure LCD power supply (VSUPPLY[1:0])

3. LCDCR1 register

a) Conï¬gure the LCD frame frequency interrupt (LCDIEN bit)

b) Conï¬gure LCD behavior in low power mode (LCDWAI and LCDSTP3 bits)

4. LCDCR0 register

a) Conï¬gure LCD duty cycle (DUTY[1:0])

b) Conï¬gure LPWAVE

c) Select and conï¬gure the LCD frame frequency (LCLK[2:0])

5. LCDBCTL register

a) Conï¬gure the blink mode to blink individual or blink all segments (BLKMODE bit)

b) Conï¬gure the blink frequency (BRATE[2:0])

6. FPENR[5:0] register

a) Enable the LCD module frontplane waveform output (FP[40:0]EN bits)

7. LCDCR0 register

a) Enable the LCD module (LCDEN bit)

MC9S08LC60 Series Advance Information Data Sheet, Rev. 2

156

PRELIMINARY

Freescale Semiconductor

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