R8CSLASH20 datasheet(256/501 Pages) RENESAS

256 / 501 page

R8C/20 Group, R8C/21 Group

14. Timers

Rev.2.00 Aug 27, 2008

Page 240 of 458

REJ09B0250-0200

Figure 14.100 Registers TRDMR and TRDFCR in PWM3 Mode

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

This bit is disabled in PWM3 mode.

Nothing is assigned. If necessary, set to 0.

When read, the content is 1.

TRDGRD0 register function

selection bit

0 : General register

1 : Buffer register of TRDGRB0 register

TRDGRC1 register function

selection bit

0 : General register

1 : Buffer register of TRDGRA1 register

TRDGRC0 register function

selection bit

0 : General register

1 : Buffer register of TRDGRA0 register

BFC0

BFC1

BFD1

TRDGRD1 register function

selection bit

0 : General register

1 : Buffer register of TRDGRB1 register

Timer RD Function Control Register

Symbol

Address

After Reset

TRDFCR

013Ah

10000000b

Bit Symbol

Bit Name

Function

NOTES:

STCLK

External clock input selection bit

Set this bit to 0 (external clock input

disabled) in PWM3 mode.

PWM3

ADTRG

ADEG

A/D trigger edge selection bit

(enabled in complementary PWM mode)

This bit is disabled in PWM3 mode.

PWM3 mode selection bit(2)

Set this bit to 0 (PWM3 mode) in PWM3

mode.

Normal-phase output level selection bit

(enabled in reset synchronous PWM

mode or complementary PWM mode)

This bit is disabled in PWM3 mode.

Set bits CMD1 to CMD0 w hen both the TSTART0 and TSTART1 bits in the TRDSTR register are set to 0 (count stops).

OLS0

Counter-phase output level selection bit

(enabled in reset synchronous PWM

mode or complementary PWM mode)

This bit is disabled in PWM3 mode.

A/D trigger enable bit

(enabled in complementary PWM mode)

This bit is disabled in PWM3 mode.

CMD1

Combination mode selection bit(1)

Set to 00b (timer mode, PWM mode, or

PWM3 mode) in PWM3 mode.

CMD0

b7 b6 b5 b4

When bits CMD1 to CMD0 are set to 00b (timer mode, PWM mode, or PWM3 mode), the setting of the PWM3 bit is

enabled.

b3 b2

OLS1

b1 b0

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