7733 datasheet(135/940 Pages) RENESAS

135 / 940 page

TIMER A

7733 Group User’s Manual

6–24

6.4 Event counter mode

Fig. 6.4.4 Initial setting example for registers related to event counter mode (2)

Counting is started.

Setting of the count start flag to “1”

Count start flag (address 4016)

Timer A0 count start flag

Timer A1 count start flag

Timer A2 count start flag

Continued from

“Initial setting example for registers related to event counter mode (1)”

on the preceding page

Timer A3 count start flag

Timer A4 count start flag

Setting of the port P5 and port P6 direction registers

Port P5 direction register (address D16)

Pin TA0OUT

Pin TA0IN

Pin TA1OUT

Pin TA1IN

Port P6 direction register (address 1016)

Pin TA4OUT

Set a bit corresponding to pin TAiIN to “0.”

When the two-phase pulse signal processing function is selected, or

when pin TAiOUT’s input signal is selected as the up-down switching

factor, set a bit corresponding to pin TAiOUT to “0.”

Pin TA2OUT

Pin TA2IN

Pin TA3OUT

Pin TA3IN

Pin TA4IN

Setting of the interrupt priority level

Timer Ai interrupt control register

(addresses 7516 to 7916)

Interrupt priority level selection bits

When using interrupts, one of levels 1 to 7 must be set.

When disabling interrupts, level 0 must be set.

7733 Datasheet(PDF) 135 Page - Renesas Technology Corp