M16CSLASH1N datasheet(115/238 Pages) RENESAS

115 / 238 page

Rev.1.00

Oct 20, 2004

page 103 of 222

M16C/1N Group

12. Timers

REJ09B0007-0100Z

Note 1: When selecting programmable wait one-shot generation mode, output is set for Port P31 regardless of the value of

the direction register.

Note 2: When this bit is cleared to "0", the timer reloads the content of the reload register before it stops. Read out the

count value before you stop the timer.

b5 b4

Timer Y, Z mode register

TYMOD0

Nothing is assigned.

When write, set "0". When read, the content is "0".

Timer Y-related bit

0 : Stops counting (Note 2)

1 : Starts counting

TZMOD0

Timer Z operation

mode bit

TZWC

Timer Z write

control bit

TZS

Timer Z count

start flag

TZMOD1

TYWC

Timer Y-related bits

TYS

Symbol

TYZMR

Address

008016

When reset

000000X02

Function

Bit name

Bit symbol

11 1

b5 b4

1 1 : Programmable wait one-shot generation

mode

(Note 1)

1 : Set to "1" in programmable wait one-shot

generation mode

b5 b4

Timer Y, Z waveform output control register

TYPUM0

Timer Y-related bits

TYOPL

Timer Y-related bit

TZPUM0

Timer Z primary

waveform extension

control bit

0 : No waveform extension

1 : Waveform extension (Note 1)

TZPUM1

Timer Z secondary

waveform extension

control bit

0 : No waveform extension

1 : Waveform extension (Note 1)

INOSTG

INT0 pin one-shot

trigger control bit

0 : INT0 pin one-shot trigger invalid

1 : INT0 pin one-shot trigger valid (Note 2)

INOSEG

INT0 pin one-shot

trigger polarity select bit

(Note 3)

0 : Edge trigger at falling edge

1 : Edge trigger at rising edge

TZOPL

Timer Z output level

latch

TYPUM1

Symbol

PUM

Address

008416

When reset

0016

Function

Bit name

Bit symbol

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

"L" is outputted when the timer is stopped.

1 : Outputs "L" level one-shot pulse.

"H" is outputted when the timer is stopped.

Note 1: When setting this bit to "1", the Prescaler Z Register must be set to "0016".

Note 2: When changing this bit to "1", set the INT0 input filter select bit (bit 0 at address 009616), the INT0 input polarity select bit

(bit 1 at address 009616), the INT0 input filter select bit (bits 0 and 1 at address 001E16) and the INT0 pin one-shot trigger

polarity select bit.

Note 3: This bit is valid only when the INT0 input polarity select bit (bit 1 at address 009616) is "0" (one-edge).

Figure 12.29 Timer Y, Z mode register and Timer Y, Z waveform output control register in

programmable wait one-shot generation mode

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