R8CSLASH15 datasheet(112/277 Pages) RENESAS

112 / 277 page

R8C/14 Group, R8C/15 Group

13. Timers

Rev.2.10

Jan 19, 2006

Page 100 of 253

REJ09B0164-0210

Figure 13.13

PREZ, TZSC and TZPR Registers

Prescaler Z Register

Symbol

Address

After Reset

PREZ

0085h

FFh

Mode

Function

Setting Range

Programmable Wait One-

shot Generation Mode

Counts internal count source or Timer X

underflow

00h to FFh

Programmable One-shot

Generation Mode

Counts internal count source or Timer X

underflow

00h to FFh

Timer Mode

Counts internal count source or Timer X

underflow

00h to FFh

Programmable Waveform

Generation Mode

Counts internal count source or Timer X

underflow

00h to FFh

Timer Z Secondary Register

Symbol

Address

After Reset

TZSC

0086h

FFh

Mode

Function

Setting Range

NOTES :

Programmable Wait One-

shot Generation Mode

Counts underflow of Prescaler Z (one-shot

w idth is counted)

00h to FFh

Programmable One-shot

Generation Mode

Disabled

——

Programmable Waveform

Generation Mode

WO(2)

Counts underflow of Prescaler Z(1)

00h to FFh

Disabled

—

Each value in the TZPR register and TZSC register is reloaded to the counter alternately and counted.

The count value can be read out by reading the TZPR register even w hen the secondary period is being

counted.

Timer Mode

—

Timer Z Primary Register

Symbol

Address

After Reset

TZPR

0087h

FFh

Mode

Function

Setting Range

NOTES :

1. Each value in the TZPR register and TZSC register is reloaded to the counter alternately and counted.

Timer Mode

Counts underflow of Prescaler Z

Programmable Waveform

Generation Mode

Counts underflow of Prescaler Z(1)

00h to FFh

Programmable One-shot

Generation Mode

Counts underflow of Prescaler Z

(counts one-shot w idth)

00h to FFh

Programmable Wait One-

shot Generation Mode

Counts underflow of Prescaler Z

(counts w ait period)

00h to FFh

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