M16CSLASH62 datasheet(515/615 Pages) RENESAS

515 / 615 page

Mitsubishi microcomputers

M16C / 62A Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

2-198

Timer A Applications

Figure 3.2.3. Set-up procedure of variable-period variable-duty PWM output (1)

Continued to the next page

Setting timer A0

Pulse output function select bit

0 : Pulse is not output (TA0OUT pin is a normal port pin)

Selecting timer mode and functions

Timer A0 mode register [Address 039616 ]

TA0MR

Gate function select bit

0 0 : Gate function not available (TA0IN pin is a normal port pin)

b4 b3

Selection of timer mode

0 (Must always be “0” in timer mode)

Count source select bit

0 0 : f1

b7 b6

Setting counter value

(b15)

(b8)

Timer A0 register [Address 038716, 038616]

TA0

3E16

7F16

Setting timer A1

Pulse output function select bit

1 : Pulse is output

Selecting one-shot timer mode and functions

Timer A1 mode register [Address 039716 ]

TA1MR

External trigger select bit (Invalid when choosing timer's overflow as trigger)

Selection of one-shot timer mode

0 (Must always be “0” in one-shot timer mode)

Trigger select bit

1 : Selected by event/trigger select register

Count source select bit

0 0 : f1

b7 b6

Count source period

f(XIN) : 16MHZ

f(XcIN) : 32.768kHZ

b7 b6

Count

source

62.5ns

500ns

2µs

976.56µs

f32

fC32

Count source period

f(XIN) : 16MHZ

f(XcIN) : 32.768kHZ

b7 b6

Count

source

62.5ns

500ns

2µs

976.56µs

f32

fC32

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