3819 datasheet(87/218 Pages) RENESAS

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3819 Group USER’S MANUAL

2. APPLICATION

MITSUBISHI MICROCOMPUTER

3819 Group

2.2 Timer

Fig. 2.2.4 Structure of Timer 12 mode register

Fig. 2.2.3 Structure of Timer 6 PWM register

Timer 6 PWM register

b7 b6 b5 b4 b3 b2 b1 b0

Function

At reset

Timer 6 PWM register (T6PWM) [Address:2716]

In Timer 6 PWM mode

Set the width of "L" of the PWM rectangular waveform.

Duty of the PWM rectangular waveform : n/(n + m)

Cycle : (n + m) ! ts

n = a set value of the Timer 6

m = a set value of the Timer 6 PWM register

ts = a cycle of the Timer 6 count source

Selection of the Timer 6 PWM mode

Set the Timer 6 operation mode selection bit of the Timer 56

mode register (Address : 2A 16) to "1".

Timer 12 mode register

b7 b6 b5 b4 b3 b2 b1 b0

Function

At reset

Timer 12 mode register (T12M) [Address:2816]

Name

Timer 1 count stop bit

Timer 2 count stop bit

Timer 1 count source

selection bit

Timer 2 count source

selection bits

Timer 1 output selection bit

(P46)

0 : Operating

1 : Stopped

0 : Operating

1 : Stopped

0 : f(XIN)/16 or f(XCIN)/16

1 : f(XCIN)

00 : Timer 1 underflow

01 : f(XCIN)

10 : External count input CNTR 0

11 : Not available

0 : I/O port

1 : Timer 1 output

b5 b4

Nothing is allocated for this bit. It is a write disabled bit.

When this bit is read out, the value is "0. "

Nothing is allocated for this bit. It is a write disabled bit.

When this bit is read out, the value is "0. "

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