HD6432142 datasheet(47/1177 Pages) RENESAS

47 / 1177 page

Section 1 Overview

Rev. 4.00 Sep 27, 2006 page 3 of 1130

REJ09B0327-0400

Item

Specifications

Bus controller

• 2-state or 3-state access space can be designated for external

expansion areas

• Number of program wait states can be set for external expansion areas

Data transfer

controller (DTC)

(H8S/2148 Group)

• Can be activated by internal interrupt or software

• Multiple transfers or multiple types of transfer possible for one

activation source

• Transfer possible in repeat mode, block transfer mode, etc.

• Request can be sent to CPU for interrupt that activated DTC

16-bit free-running

timer module

(FRT: 1 channel)

• One 16-bit free-running counter (also usable for external event

counting)

• Two output compare outputs

• Four input capture inputs (with buffer operation capability)

8-bit timer module

(2 channels: TMR0,

TMR1)

Each channel has:

• One 8-bit up-counter (also usable for external event counting)

• Two timer constant registers

• The two channels can be connected

Timer connection and

8-bit timer module

(TMR) (2 channels:

TMRX, TMRY)

(Timer connection and

TMRX provided in

H8S/2148 Group)

Input/output and FRT, TMR1, TMRX, TMRY can be interconnected

• Measurement of input signal or frequency-divided waveform pulse

width and cycle (FRT, TMR1)

• Output of waveform obtained by modification of input signal edge (FRT,

TMR1)

• Determination of input signal duty cycle (TMRX)

• Output of waveform synchronized with input signal (FRT, TMRX,

TMRY)

• Automatic generation of cyclical waveform (FRT, TMRY)

Watchdog timer

module

(WDT: 2 channels)

• Watchdog timer or interval timer function selectable

• Subclock operation capability (channel 1 only)

8-bit PWM timer

(PWM)

(H8S/2148 Group and

H8S/2147N)

• Up to 16 outputs

• Pulse duty cycle settable from 0 to 100%

• Resolution: 1/256

• 1.25 MHz maximum carrier frequency (20-MHz operation)

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