R8C2K datasheet(195/471 Pages) RENESAS

195 / 471 page

R8C/2K Group, R8C/2L Group

16. Timers

Rev.1.10

Dec 21, 2007

Page 178 of 450

REJ09B0406-0110

Figure 16.30

TRCCR1 Register

Timer RC Control Register 1

Symbol

Address

After Reset

TRCCR1

0121h

00h

Bit Symbol

Bit Name

Function

NOTES:

3. The TRC counter performs free-running operation for the input capture function of the timer mode independent of the

CCLR bit setting.

Count source select bits(1)

b6 b5 b4

0 0 0 : f1

0 0 1 : f2

0 1 0 : f4

0 1 1 : f8

1 0 0 : f32

1 0 1 : TRCCLK input rising edge

1 1 0 : fOCO40M

1 1 1 : Do not set.

0 : Disable clear (free-running

operation)

1 : Clear by compare match in the

TRCGRA register

Bits CCLR, TOA, TOB, TOC and TOD are disabled for the input capture function of the timer mode.

TCK0

TCK1

TRC counter clear select bit(2, 3)

TCK2

Set to these bits w hen the TSTART bit in the TRCMR register is set to 0 (count stops).

TOC

TRCIOD output level select bit(1)

CCLR

TRCIOC output level select bit(1)

TOB

TRCIOA output level select bit(1)

TRCIOB output level select bit(1)

Function varies according to the

operating mode (function).(2)

b7 b6 b5 b4 b3 b2

TOD

b1 b0

TOA

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