7906 datasheet(144/531 Pages) RENESAS

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TIMER A

7906 Group User’s Manual Rev.2.0

7-41

7.6 Pulse width modulation (PWM) mode

Fig. 7.6.3 Initial setting example for registers related to PWM mode (2)

Count starts.

When external trigger is selected

When internal trigger is selected

Continued from preceding

Figure 7.6.2

Trigger generated

Port P6 direction register

(Address 1016)

Setting port P6 and port P2 direction registers

Clear the corresponding bit to “0.”

Setting interrupt priority level

Timer Aj interrupt control register (j = 0 to 2, 4, 9)

(Addresses 7516 to 7716, 7916, F916)

Interrupt priority level select bits

When using interrupts, set these bits to one of levels 1 to 7.

When disabling interrupts, set these bits to level 0.

Trigger input

to TAjIN pin

Pin TA0IN

Pin TA1IN

Pin TA4IN

Port P2 direction register

(Address 816)

Pin TA2IN

Pin TA9IN

Setting count start bit to “1”

Count start register 0

(Address 4016)

Timer A0 count start bit

Timer A1 count start bit

Timer A2 count start bit

Timer A4 count start bit

Count start register 1

(Address 4116)

Timer A9 count start bit

Setting count start bit to “1”

Count start register 0

(Address 4016)

Timer A0 count start bit

Timer A1 count start bit

Timer A2 count start bit

Timer A4 count start bit

Count start register 1

(Address 4116)

Timer A9 count start bit

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