MB90330A datasheet(75/120 Pages) FUJITSU

Part #	MB90330A

Description	16-bit Microcontroller

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Manufacturer	FUJITSU [Fujitsu Component Limited.]

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MB90330A Series

75

14. Interrupt controller

The interrupt control register is located inside the interrupt controller; it exists for every I/O having an interrupt

function. This register has the following functions.

• Setting of the interrupt levels of relevant resources

• Register list

Note : Do not access interrupt control registers using any read modify write instruction because it causes a

malfunction.

• Block Diagram

Interrupt control register (ICR01, ICR03, ICR05, ICR07, ICR09, ICR11, ICR13, ICR15)

Interrupt control register (ICR00, ICR02, ICR04, ICR06, ICR08, ICR10, ICR12, ICR14)

bit

Initial Value

00000111B

Address : ICR01 : 0000B1H

ICR03 : 0000B3H

ICR05 : 0000B5H

ICR07 : 0000B7H

ICR09 : 0000B9H

ICR11 : 0000BBH

ICR13 : 0000BDH

ICR15 : 0000BFH

bit

Initial Value

00000111B

Address : ICR00 : 0000B0H

ICR02 : 0000B2H

ICR04 : 0000B4H

ICR06 : 0000B6H

ICR08 : 0000B8H

ICR10 : 0000BAH

ICR12 : 0000BCH

ICR14 : 0000BEH

( W )

( R/W ) ( R/W )

15

14

13

12

11

10

9

8

ICS2

( W )

ICS3

ICS1

ICS0

IL2

IL1

IL0

ISE

( W )

( R/W ) ( R/W )

76

5

4

3

2

1

0

ICS2

( W )

ICS3

ICS1

ICS0

IL2

IL1

IL0

ISE

IL2

IL1

IL0

32

3

Determine

priority

of

interrupt

Interrupt request

(peripheral resource)

(CPU)

Interrupt level

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