R8C2K datasheet(277/471 Pages) RENESAS

277 / 471 page

R8C/2K Group, R8C/2L Group

16. Timers

Rev.1.10

Dec 21, 2007

Page 260 of 450

REJ09B0406-0110

Figure 16.100 Registers TRDSTR and TRDMR in PWM Mode

Timer RD Start Register

(1)

Symbol

Address

After Reset

TRDSTR

0137h

11111100b

Bit Symbol

Bit Name

Function

NOTES:

When the CSEL0 bit is set to 1, w rite 0 to the TSTART0 bit.

When the CSEL1 bit is set to 1, w rite 0 to the TSTART1 bit.

When the CSEL0 bit is set to 0 and the compare match signal (TRDIOA0) is generated, this bit is set to 0 (count

stops).

When the CSEL1 bit is set to 0 and the compare match signal (TRDIOA1) is generated, this bit is set to 0 (count

stops).

b3 b2

CSEL1

b1 b0

TSTART0

b7 b6 b5 b4

Nothing is assigned. If necessary, set to 0.

When read, the content is 1.

TSTART1

TRD1 count start flag(5)

0 : Count stops(3)

1 : Count starts

TRD0 count start flag(4)

0 : Count stops(2)

1 : Count starts

Set the TRDSTR register using the MOV instruction (do not use the bit handling instruction). Refer to 16.4.12.1

TRDSTR Register of Notes on Tim er RD.

TRD0 count operation select bit

0 : Count stops at the compare match w ith

the TRDGRA0 register

1 : Count continues after the compare

match w ith the TRDGRA0 register

CSEL0

TRD1 count operation select bit

0 : Count stops at the compare match w ith

the TRDGRA1 register

1 : Count continues after the compare

match w ith the TRDGRA1 register

—

(b7-b4)

Timer RD Mode Register

Symbol

Address

After Reset

TRDMR

0138h

00001110b

Bit Symbol

Bit Name

Function

b3 b2

BFD0

b1 b0

SYNC

b7 b6 b5 b4

—

(b3-b1)

—

Timer RD synchronous bit

0 : Registers TRD0 and TRD1 operate

independently

1 : Registers TRD0 and TRD1 operate

synchronously

Nothing is assigned. If necessary, set to 0.

When read, the content is 1.

TRDGRC0 register function

select bit

0 : General register

1 : Buffer register of TRDGRA0 register

BFC0

TRDGRD0 register function

select bit

0 : General register

1 : Buffer register of TRDGRB0 register

TRDGRC1 register function

select bit

0 : General register

1 : Buffer register of TRDGRA1 register

BFC1

BFD1

TRDGRD1 register function

select bit

0 : General register

1 : Buffer register of TRDGRB1 register

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