7721 datasheet(99/577 Pages) RENESAS

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7721 Arkusz danych(PDF) 99 Page - Renesas Technology Corp

Numer części	7721

Szczegółowy opis	16-BIT SINGLE-CHIP MICROCOMPUTER

PDF	577 Pages

Scroll/Zoom	100%

Producent	RENESAS [Renesas Technology Corp]

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7721 Group User’s Manual

INTERRUPTS

7–2

7.1 Overview

The M37721 provides 23 interrupt sources to generate interrupt requests.

Figure 7.1.1 shows the interrupt processing sequence.

When an interrupt request is accepted, a branch is made to the start address of the interrupt routine set

in the interrupt vector table (addresses FFCE16 to FFFF16). Set the start address of each interrupt routine

to the corresponding interrupt vector address in the interrupt vector table.

7.1 Overview

Fig. 7.1.1 Interrupt processing sequence

Interrupt routine

Interrupt request is accepted.

Processing is resumed.

Processing is suspended.

Returns

to original

routine.

RTI instruction

Interrupt processing

Routine in progress

Branches

to start

address

of interrupt

routine.

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