Discuss the control words of ic8259, Electrical Engineering

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Discuss the control words (ICWS) of IC8259.

The Intel 8259 is a single chip programmable interrupt controller. It is compatible with 8086, 8088 and 8085 microprocessor. It is a 28 -pin DIP I.C package and uses N-MOS technology.

8259 Control Word Initialization:

# CS

A0

Initialization

0

0

ICW1

0

1

ICW2, ICW3 and ICW4

1

x

Notaddressed

 

1579_8259 Control Word Initialization.png

470_Control Word Initialization.png


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