H83065 datasheet(113/963 Pages) RENESAS

Part #	H83065

Description	Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

PDF	963 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

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Section 5 Interrupt Controller

Rev. 4.00 Jan 26, 2006 page 91 of 938

REJ09B0276-0400

Section 5 Interrupt Controller

5.1

Overview

5.1.1

Features

The interrupt controller has the following features:

• Interrupt priority registers (IPRs) for setting interrupt priorities

Interrupts other than NMI can be assigned to two priority levels on a module-by-module basis

in interrupt priority registers A and B (IPRA and IPRB).

• Three-level masking by the I and UI bits in the CPU condition code register (CCR)

• Seven external interrupt pins

NMI has the highest priority and is always accepted*; either the rising or falling edge can be

selected. For each of IRQ

0 to IRQ5, sensing of the falling edge or level sensing can be selected

independently.

Note: * In the flash memory and flash memory R versions, NMI input is sometimes disabled. For

details see 18.6.4, NMI Input Disable Conditions.

H83065 Datasheet(PDF) 113 Page - Renesas Technology Corp