R8CSLASH13 datasheet(108/224 Pages) RENESAS

108 / 224 page

Rev.1.20

Jan 27, 2006

page 97 of 205

REJ09B0111-0120

R8C/13 Group

Figure 12.25 Operation Example in Programmable One-shot Generation Mode

Count source

TZOUT pin output

IR bit in

TZIC register

TZS bit in

TYZMR register

“1”

“0”

0116

0016

0116

0016

Timer Z

primary

reload

Set to

“0” when interrupt request

is acknowledged or by program

Waveform

output starts

Waveform

output

completes

TZOPL bit in

PUM register

TZOS bit in

TYZOC register

Contents of Timer Z

Set to

“1” by program

0116

Count

starts

Set to

“1” by INT0 pin

input trigger

Set to

“0” when count

completes

The above applies to the following conditions;

PREZ=0116, TZPR=0116

TZOPL bit in PUM register=0, INOSTG bit= 1(INT0 one-shot trigger enabled)

INOSEG bit= 1(rising edge trigger)

INT0 pin input

Prescaler Z

underflow signal

“1”

“0”

“1”

“0”

“1”

“0”

“1”

“H”

“L”

Set to

“1” by program

Set to

“1” by program

Count

starts

Timer Z

primary

reload

Waveform

output starts

Waveform

output

completes

12.3 Timer (Timer Z)

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