R8C datasheet(81/199 Pages) RENESAS

81 / 199 page

R8C/10 Group

Rev.1.20 Jan 27, 2006

page 71 of 180

REJ09B0019-0120

Figure 12.16 TYZMR Register and PUM Register in Programmable Waveform Generation Mode

Bit name

Function

Bit symbol

TYOPL

TZOPL

INOSEG

INOSTG

Timer Z-related bits

Timer Y, Z waveform output control register

Symbol

Address

After reset

PUM

008416

0016

b5 b4

Timer Y output level

latch

0 : Outputs "H" for primary period

Outputs "L" for secondary period

Outputs "L" when the timer is stopped

1 : Outputs "L" for primary period

Outputs "H" for secondary period

Outputs "H" when the timer is stopped

(b3-b0)

Reserved bit

Must set to “0”

12.2 Timer (Timer Y)

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 operation

mode bit

NOTES:

1. The IR bit in the INT2IC register may be set to “1” (interrupt requested) when the R1EDG bit is rewritten.

Refer to the paragraph 19.2.5 “Changing Interrupt Factor” in the Usage Notes Reference Book.

1 : Programmable waveform generation mode

TZWC

TZS

0 : Stops counting

1 : Starts counting

Timer Z-related bit

Timer Y count

start flag

Timer Y write

control bit

R1EDG

Disabled in programmable waveform

generation mode

INT2/CNTR1 polarity

switching bit(1, 3)

Set to “1” in programmable waveform generation

mode(2)

2. When TYS bit= 1 (starts counting), the timer Y count value is written to the reload register only.

When TYS bit=0 (stops counting), the timer Y count value is written to both reload register and counter.

3. The INT2 interrupt request is not generated when the TYMOD0 bit is set to “1” (programmable waveform

generation mode).

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