R8C datasheet(97/199 Pages) RENESAS

97 / 199 page

R8C/10 Group

Rev.1.20 Jan 27, 2006

page 87 of 180

REJ09B0019-0120

Symbol

Address

After reset

009116-009016

000016

Internal count source is counted

Function

Timer C register

Symbol

Address

After reset

TM0

009D16-009C16

000016

When active edge of measurement pulse is input, the counter value of

Timer C is stored

Function

Capture register

(b15)

(b8)

(b15)

(b8)

Figure 12.29 TC Register, TM0 Register, TCC0 Register, and TCC1 Register

12.4 Timer (Timer C)

Timer C control register 0

SymbolAddressAfter reset

TCC0009A16

0016

Bit name

Function

Bit symbol

b7 b6 b5 b4 b3 b2 b1 b0

0 0 : f1

0 1 : f8

1 0 : f32

1 1 : Avoid this setting

TCC04

TCC02

TCC01

TCC00

TCC03

Timer C count start bit

Timer C count source select

bit(1)

0 : Count stops

1 : Count starts

TCC07

b2 b1

Timer C control register 1

SymbolAddressAfter reset

TCC1009B16

0016

Bit name

Function

Bit symbol

b7 b6 b5 b4 b3 b2 b1 b0

TCC11

TCC10

0 0 : Rising edge

0 1 : Falling edge

1 0 : Both edges

1 1 : Avoid this setting

b4 b3

b1 b0

INT3 input filter select bit(1)

NOTES:

1. Input is recognized only when the same value from INT3 pin is sampled three times in succession.

(b6-b5)

INT3 interrupt and

capture input polarity select

bit(1, 2)

INT3 interrupt and

capture input switching bit(1, 2)

0 : INT3

1 : fRING128

Reserved bit

(b7-b2)

0 0 : No filter

0 1 : Filter with f1 sampling

1 0 : Filter with f8 sampling

1 1 : Filter with f32 sampling

NOTES:

1. Change this bit when TCC00 bit is set to “0” (count stop).

2. The IR bit in the INT3IC may be set to “1” (interrupt requested) when the TCC03, TCC04, or TCC07 bit is rewritten.

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

reserved bit

Set to "0"

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