HD6432142 datasheet(335/1177 Pages) RENESAS

Part #	HD6432142

Description	Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series

PDF	1177 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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Section 10 14-Bit PWM Timer (PWMX)

Rev. 4.00 Sep 27, 2006 page 291 of 1130

REJ09B0327-0400

Section 10 14-Bit PWM Timer (PWMX)

10.1

Overview

This LSI have an on-chip 14-bit pulse-width modulator (PWM) with two output channels.

Each channel can be connected to an external low-pass filter to operate as a 14-bit D/A converter.

Both channels share the same counter (DACNT) and control register (DACR).

10.1.1

Features

The features of the 14-bit PWM (D/A) are listed below.

• The pulse is subdivided into multiple base cycles to reduce ripple.

• Two resolution settings and two base cycle settings are available

The resolution can be set equal to one or two system clock cycles. The base cycle can be set

equal to T

× 64 or T × 256, where T is the resolution.

• Four operating rates

The two resolution settings and two base cycle settings combine to give a selection of four

operating rates.

HD6432142 Datasheet(PDF) 335 Page - Renesas Technology Corp