MB90F474LPF datasheet(76/118 Pages) FUJITSU

76 / 118 page

MB90470 Series

20. Interrupt Controller

The interrupt control registers are located in the interrupt controller. An interrupt control register is provided for

each I/O with an interrupt function. The registers have the following functions.

• Set the interrupt level of the corresponding peripheral.

(1) Register List

Note : Do not access these registers using read-modify-write instructions as this can cause misoperation.

(2) Block Diagram

IL2

IL1

IL0

ICR00

ICR02

ICR04

ICR06

ICR08

ICR14

: 0000B0H

: 0000B2H

: 0000B4H

: 0000B6H

: 0000B8H

: 0000BEH

ICR01

ICR03

ICR05

ICR07

ICR09

ICR11

ICR13

ICR15

Re-

served

IL2

IL1

IL0

: 0000B1H

: 0000B3H

: 0000B5H

: 0000B7H

: 0000B9H

: 0000BBH

: 0000BDH

: 0000BFH

bit

(W)

(R/W)

(R/W) (R/W)

(R/W)

(0)

(1)

(W)

(R/W)

(R/W) (R/W)

(R/W)

(0)

(1)

bit

Re-

served

Interrupt control register

Address:

Read/Write

→

Initial value

→

ICR01, 03, 05,

07, 09, 11, 13,

Address:

Read/Write

→

Initial value

→

ICR00, 02, 04,

26, 08, 10, 12,

Re-

IL2

IL1

IL0

served

Determine

priority

of interrupt

Interrupt request

(peripheral resource)

(CPU)

Interrupt level

MB90F474LPF Datasheet(PDF) 76 Page - fujitsu semiconductor

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