7702 datasheet(130/217 Pages) RENESAS

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TIMER A

7702/7703 Group User’s Manual

5–42

5.6 Pulse width modulation (PWM) mode

Count starts

Trigger input

to TAiIN pin

When external

trigger is selected

When internal trigger is selected

From preceding Figure5.6.2.

Trigger generated

Port P5 direction register

(Address D16)

Setting port P5 and port P6 direction registers

TA0IN pin

TA1IN pin

TA2IN pin

TA3IN pin

TA4IN pin

Clear the corresponding bit to “0.”

Port P6 direction

Setting interrupt priority level

Timer Ai interrupt control register (i = 0 to 4)

(Addresses 7516 to 7916)

Interrupt priority level select bits

When using interrupts, set these bits to

level 1 – 7.

When disabling interrupts, set these bits to

level 0.

Setting count start bit to “1”

Count start register (Address 4016)

Timer A1 count start bit

Timer A2 count start bit

Timer A3 count start bit

Timer A4 count start bit

Timer A0 count start bit

Setting count start bit to “1”

Count start register (Address 4016)

Timer A1 count start bit

Timer A2 count start bit

Timer A3 count start bit

Timer A4 count start bit

Timer A0 count start bit

Fig. 5.6.3 Initial setting example for registers relevant to PWM mode (2)

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