R8C2K datasheet(218/471 Pages) RENESAS

218 / 471 page

R8C/2K Group, R8C/2L Group

16. Timers

Rev.1.10

Dec 21, 2007

Page 201 of 450

REJ09B0406-0110

Figure 16.51

TRCCR1 Register for Output Compare Function

j = A, B, C, or D

BFC, BFD: Bits in TRCMR register

Table 16.19

Functions of TRCGRj Register when Using Output Compare Function

Setting

Output Compare

Output Pin

TRCGRA

−

General register. Write a compare value to one of these

registers.

TRCIOA

TRCGRB

TRCIOB

TRCGRC

BFC = 0

General register. Write a compare value to one of these

registers.

TRCIOC

TRCGRD

BFD = 0

TRCIOD

TRCGRC

BFC = 1

Buffer register. Write the next compare value to one of

these registers. (Refer to 16.3.3.2 Buffer Operation.)

TRCIOA

TRCGRD

BFD = 1

TRCIOB

Timer RC Control Register 1

Symbol

Address

After Reset

TRCCR1

0121h

00h

Bit Symbol

Bit Name

Function

NOTES:

TRC counter clear select bit

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, 2)

CCLR

0 : Initial output “L”

1 : Initial output “H”

Count source select bits(1)

TOB

TRCIOA output level select bit(1, 2)

TRCIOB output level select bit(1, 2)

TOA

TRCIOC output level select bit(1, 2)

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

TCK0

TCK1

b7 b6 b5 b4

If the pin function is set for w aveform output (refer to Tables 7.10 to 7.13 and Tables 7.29 to 7.32), the initial

output level is output w hen the TRCCR1 register is set.

b3 b2

TOD

b1 b0

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