TMP86FS49AIUG datasheet(138/296 Pages) TOSHIBA

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Page 122

11. 8-Bit TimerCounter (TC5, TC6)

11.1 Configuration

TMP86FS49AIUG

The TimerCounter 6 is controlled by the TimerCounter 6 control register (TC6CR) and two 8-bit timer registers

(TTREG6 and PWREG6).

Note 1: Do not change the timer register (TTREG6) setting while the timer is running.

Note 2: Do not change the timer register (PWREG6) setting in the operating mode except the 8-bit and 16-bit PWM modes while

the timer is running.

Note 1: fc: High-frequency clock [Hz] fs: Low-frequency clock [Hz]

Note 2: Do not change the TC6M, TC6CK and TFF6 settings while the timer is running.

Note 3: To stop the timer operation (TC6S= 1

→ 0), do not change the TC6M, TC6CK and TFF6 settings.

To start the timer operation (TC6S= 0

→ 1), TC6M, TC6CK and TFF6 can be programmed.

Note 4: When TC6M= 1** (upper byte in the 16-bit mode), the source clock becomes the TC6 overflow signal regardless of the

TC5CK setting.

Note 5: To use the TimerCounter in the 16-bit mode, select the operating mode by programming TC6M, where TC5CR<TC5 M>

must be set to 011.

TimerCounter 6 Timer Register

TTREG6

(0017H)

R/W

6543

210

(Initial value: 1111 1111)

PWREG6

(001BH)

R/W

6543

210

(Initial value: 1111 1111)

TimerCounter 6 Control Register

TC6CR

(002AH)

6543

210

TFF6

TC6CK

TC6S

TC6M

(Initial value: 0000 0000)

TFF6

Timer F/F6 control

Clear

Set

R/W

TC6CK

Operating clock selection [Hz]

NORMAL1/2, IDLE1/2 mode

SLOW1/2

SLEEP1/2

mode

R/W

DV7CK = 0

DV7CK = 1

000

fc/211

fs/23

001

fc/27

–

010

fc/25

–

011

fc/23

–

100

101

fc/2

–

110

–

111

TC6 pin input

TC6S

TC6 start control

Operation stop and counter clear

Operation start

R/W

TC6M

TC6M operating mode select

000:

001:

010:

011:

100:

101:

110:

111:

8-bit timer/event counter mode

8-bit programmable divider output (PDO) mode

8-bit pulse width modulation (PWM) output mode

Reserved

16-bit timer/event counter mode

Warm-up counter mode

16-bit pulse width modulation (PWM) output mode

16-bit PPG mode

R/W

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