7733 datasheet(101/940 Pages) RENESAS

tên linh kiện	7733

Giải thích chi tiết về linh kiện	16-BIT SINGLE-CHIP MICROCOMPUTER

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7733 Group User's Manual

INTERRUPTS

4–22

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4.10.2 How to switch INTi interrupt request occurrence condition

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The way to switch the INTi interrupt request occurrence condition from the level sense to the edge sense

is shown in Figure 4.10.5 (1).

The way to switch the polarity is shown in Figure 4.10.5 (2).

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4.10 External interrupts (INTi interrupt)

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Fig. 4.10.5 How to switch INTi interrupt request occurrence condition

Set interrupt priority level to 0.

( INTi interrupt is disabled. )

Clear the level sense/edge sense selection bit to “0.”

( Edge sense selected )

Clear the interrupt request bit to “0.”

Set the interrupt priority level to one of levels 1 to 7.

( INTi interrupt request is acceptable. )

Clear the interrupt request bit to “0.”

Set interrupt priority level to 0.

( INTi interrupt is disabled. )

Set the polarity selection bit.

Set the interrupt priority level to one of levels 1 to 7.

( INTi interrupt request is acceptable. )

(2) How to switch the polarity

(1) How to switch the INTi interrupt request

occurrence condition from level sense

to edge sense

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