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136

µ

PD78214 Sub-Series

Fig. 7-37 Setting Procedure for PWM Output

Fig. 7-38 Changing Duty Factor of PWM Output

CIF00←0

Preprocessing for

changing duty factor

Clear INTC00 interrupt request

flag

; Clears bit 4 of IF0L

Enable INTC00 interrupt

; Clears bit 4 of MK0L

INTC00 interrupt

Duty factor changing

processing

Set duty factor in CR00

CMK00←0

Disable INTC00 interrupt

; Sets bit 4 of MK0L

CMK00←1

RETI

PWM output

Set CRC0 register

Set TOC register

Set P34 pin in control mode

Set initial value in compare

register

Start counting

; Sets bit 3 of TMC0

CRC0←90H

PMC3.4←1

CE0←1