7721 datasheet(151/577 Pages) RENESAS

Il numero della parte	7721

Spiegazioni elettronici	16-BIT SINGLE-CHIP MICROCOMPUTER

PDF	577 Pages

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Produttore elettronici	RENESAS [Renesas Technology Corp]

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TIMER A

7721 Group User’s Manual

8–32

8.5 One-shot pulse mode

Count starts

Trigger generated

Trigger input to TAjIN pin

When internal trigger

is selected

When external trigger

is selected

From preceding Figure 8.5.2.

One-shot start register (Address

4216)

Setting one-shot start bit to “1”

Timer A2 one-shot start bit

Timer A3 one-shot start bit

Timer A4 one-shot start bit

Setting count start bit to “1”

Timer A2 count start bit

Timer A3 count start bit

Timer A4 count start bit

Count start register (Address 4016)

Port P5 direction register

(Address D16)

Setting port P5 direction register

TA2IN pin

TA3IN pin

TA4IN pin

Set the corresponding bit to “0.”

Setting count start bit to “1”

Timer A2 count start bit

Timer A3 count start bit

Timer A4 count start bit

Count start register (Address 4016)

Fig. 8.5.3 Initial setting example for registers relevant to one-shot pulse mode (2)

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