R29 datasheet(180/473 Pages) RENESAS

Part #	R29

Description	RENESAS 16-BIT SINGLE-CHIP MCU R8C FAMILY / R8C/2x SERIES

PDF	473 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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180 / 473 page

R8C/28 Group, R8C/29 Group

14. Timers

Rev.2.10

Sep 26, 2008

Page 161 of 441

REJ09B0279-0210

Figure 14.19

Operating Example of Timer RB in Programmable Waveform Generation Mode

IR bit in TRBIC

Count source

Timer RB prescaler

underflow signal

Counter of timer RB

TRBO pin output

TOPL bit in TRBIO

Set to 1 by program

Set to 0 when interrupt

request is acknowledged,

or set by program.

The above applies under the following conditions.

TSTART bit in TRBCR

01h

00h

02h

Timer RB secondary reloads

Timer RB primary reloads

Set to 0 by program

TRBPRE = 01h, TRBPR = 01h, TRBSC = 02h

TRBIOC register TOCNT = 0 (timer RB waveform is output from the TRBO pin)

02h

01h

00h

01h

00h

Primary period

Secondary period

Waveform

output starts

Waveform output inverted

Waveform output starts

Initial output is the same level

as during secondary period.

R29 Datasheet(PDF) 180 Page - Renesas Technology Corp

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