7702 datasheet(78/217 Pages) RENESAS

Part #	7702

Description	16-BIT SINGLE-CHIP MICROCOMPUTER

PDF	217 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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78 / 217 page

7702/7703 Group User’s Manual

INTERRUPTS

4–16

4.7.1 Change in IPL at acceptance of interrupt request

When an interrupt request is accepted, the processor interrupt priority level (IPL) is replaced with the

interrupt priority level of the accepted interrupt. This results in easy control of multiple interrupts. (Refer

to section “4.9 Multiple interrupts.”)

When at reset or the watchdog timer or the software interrupt is accepted, the value shown in Table 4.7.1

is set in the IPL.

Table 4.7.1 Change in IPL at interrupt request acceptance

Change in IPL

Level 0 (“0002”) is set.

Level 7 (“1112”) is set.

No change

Interrupt priority level of the accepted interrupt request is set.

Interrupt source

Reset

Watchdog timer

Zero division

BRK instruction

Other interrupts

4.7 Sequence from acceptance of interrupt request to execution of interrupt routine

7702 Datasheet(PDF) 78 Page - Renesas Technology Corp