R29 datasheet(154/473 Pages) RENESAS

154 / 473 page

R8C/28 Group, R8C/29 Group

14. Timers

Rev.2.10

Sep 26, 2008

Page 135 of 441

REJ09B0279-0210

NOTES:

1. For J, K version, fC4 and fC32 cannot be selected.

2. For N, D version only.

Table 14.1

Functional Comparison of Timers

Item

Timer RA

Timer RB

Timer RC

Timer RE

Configuration

8-bit timer with 8-

bit prescaler (with

reload register)

8-bit timer with 8-

bit prescaler (with

reload register)

16-bit free-run timer (with

input capture and output

compare)

4-bit counter

8-bit counter

Count

Decrement

Increment

Count source(1)

•f1

•f2

•f8

•fOCO

•fC32

•f1

•f2

•f8

•Timer RA

underflow

•f1

•f2

•f4

•f8

•f32

• fOCO40M

• TRCCLK

•f4

•f8

•f32

•fC4

Function Timer Mode

provided

(input capture function,

output compare function)

not provided

Pulse Output Mode

provided

not provided

Event Counter

Mode

provided

not provided

Pulse Width

Measurement Mode

provided

not provided

Pulse Period

Measurement Mode

provided

not provided

Programmable

Waveform

Generation Mode

not provided

provided

not provided

Programmable

One-Shot

generation Mode

not provided

provided

not provided

Programmable Wait

One-Shot

Generation Mode

not provided

provided

not provided

Input Capture Mode not provided

not provided

provided

not provided

Output Compare

Mode

not provided

provided

PWM Mode

not provided

provided

not provided

PWM2 Mode

not provided

provided

not provided

Real-Time Clock

Mode

not provided

provided(2)

Input Pin

TRAIO

INT0

INT0, TRCCLK, TRCTRG

TRCIOA, TRCIOB,

TRCIOC, TRCIOD

−

Output Pin

TRAO

TRAIO

TRBO

TRCIOA, TRCIOB,

TRCIOC, TRCIOD

−

Related Interrupt

Timer RA interrupt

INT1 interrupt

Timer RB interrupt

INT0 interrupt

Compare Match / Input

Capture A to D interrupt

Overflow interrupt

INT0 interrupt

Timer RE

interrupt

Timer Stop

provided

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