Hardware manual

Rev. 3.0, 09/98, page 179 of 361
Section 9 PWM Timers
9.1 Overview
The H8/338 Series has an on-chip pulse-width modulation (PWM) timer module with two
independent channels (PWM0 and PWM1). Both channels are functionally identical. Each PWM
channel generates a rectangular output pulse with a duty cycle of 0 to 100%. The duty cycle is
specified in an 8-bit duty register (DTR).
9.1.1 Features
The PWM timer module has the following features:
•
Selection of eight clock sources
•
Duty cycles from 0 to 100% with 1/250 resolution
•
Output with positive or negative logic and software enable/disable control