R8C datasheet(91/199 Pages) RENESAS

91 / 199 page

R8C/10 Group

Rev.1.20 Jan 27, 2006

page 81 of 180

REJ09B0019-0120

Figure 12.24 TYZMR Register and PUM Register in Programmable One-shot Generation Mode

Bit name

Function

Bit symbol

Timer Y, Z waveform output control register

Symbol

Address

After reset

PUM

008416

0016

b7 b6 b5 b4 b3 b2 b1 b0

TYOPL

TZOPL

INOSEG

INOSTG

INT0 pin one-shot trigger

polarity select bit(1)

Timer Z output level

latch

Timer Y-related bit

INT0 pin one-shot trigger

control bit(2)

Reserved bit

Must set to “0”

(b3-b0)

0 : Edge trigger at falling edge

1 : Edge trigger at rising edge

0 : Outputs "H" level one-shot pulse.

Outputs "L" when the timer is stopped.

1 : Outputs "L" level one-shot pulse

Outputs "H" when the timer is stopped.

0 : INT0 pin one-shot trigger disabled

1 : INT0 pin one-shot trigger enabled(2)

NOTES:

1. The INOSEG bit is valid only when the INT0PL bit in the INTEN register is set to "0" (one-edge).

2. The INOSGT bit must be set to “1” after the INT0EN bit in the INTEN register and the INOSEG bit in the PUM register are

set.

When setting the INOSTG bit to "1" (INT0 pin one-shot trigger enabled), the INT0F0 and INT0F1 bits in the INT0F register

must be set.

The INOSTG bit must be set to “0” (INT0 pin one-shot trigger disabled) after the TZS bit in the TYZMR register is set to “0”

(count stop).

12.3 Timer (Timer Z)

Timer Y, Z mode register

SymbolAddressAfter reset

TYZMR008016

0016

Bit name

Function

Bit symbol

b7 b6 b5 b4 b3 b2 b1 b0

TZMOD1

TYS

TYWC

TYMOD0

TZMOD0

Timer Y-related bit

TZWC

TZS

0 : Stops counting

1 : Starts counting

Timer Z count

start flag

Timer Z operation

mode bit

b5 b4

Timer Z write

control bit

NOTES:

1. When the TZS bit is set to “1”(count starts), the count value is written to the reload register only.

When the TZS bit is set to “0”(count stops), the count value is written to both the reload register and counter.

R1EDG

Set to "1" in programmable one-shot generation

mode(1)

1 0 : Programmable one-shot generation mode

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