MSM82C59A-2GS 查看數據表（PDF） - Oki Electric Industry

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MSM82C59A-2GS

PROGRAMMABLE INTERRUPT CONTROLLER

Oki Electric Industry 

¡ Semiconductor

BLOCK DIAGRAM

D7 - D0

Data

Bus

Buffer

MSM82C59A-2RS/GS/JS

INTA

INT

Control Logic

RD

Read/

WR

Write

A0

Logic

CS

IR0

In-

Interrupt

IR1

Service

Register

Priority

Resolver

Request

Register

IR2

IR3

IR4

(ISR)

(IRR)

IR5

IR6

IR7

CAS0

CAS1

CAS2

SP/EN

Cascade

Buffer/

Comparator

Interrupt Mask Register (IMR)

Internal Bus (8 bits)

MSM82C59A-2 Internal Block Diagram

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