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NEC PD78214 User Manual

Page 227

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198

µ

PD78214 Sub-Series

Fig. 7-108 Setting of Control Registers for PWM Output Operation

(a) Timer control register 1 (TMC1)

(b) Prescaler mode register 1 (PRM1)

(c) Capture/compare control register 2 (CRC2)

7

6

5

4

3

2

1

0

1

CRC2

0

0

1

0

0

0

0

Disables clearing TM2

Both TO2 and TO3 are used for PWM output

(d) Timer output control register (TOC)

(e) Port 3 mode control register (PMC3)

7

6

5

4

3

2

1

0

1

0

0

0

×

0

0

TMC1

×

Normal mode

Overflow flag

Enables counting for TM2

7

6

5

4

3

2

1

0

PRS23

×

PRM1

Specifies count clock

(x/f

CLK

; where x = 16, 32, 64, 128, 256 or 512)

PRS22 PRS21 PRS20

Ч

Ч

Ч

7

6

5

4

3

2

1

0

1

TOC

0

Ч

Ч

Ч

Ч

Ч

Ч

TO3 for high-active PWM signal output

Enables PWM output for TO3

7

6

5

4

3

2

1

0

1

PMC3

Ч

Ч

Ч

Ч

Ч

Ч

Ч

Specifies P37 pin as TO3 output

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