INTRODUCTION TO MICROPEOCESSOR
MICROCOMPUTER SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It is an 8259A pin configuration that enables the 8259A for programming and control
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Bi-directional Data
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Chip Select
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Interrupt Acknowledge
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Slave Program
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Explanation:
Detailed explanation-1: -It is an active low-input pin which is activated by the processor to write the control information to 8259. For selecting the chip it is used an active low input pin.
Detailed explanation-2: -The 8259 is known as the Programmable Interrupt Controller (PIC) microprocessor. In 8085 and 8086 there are five hardware interrupts and two hardware interrupts respectively. Bu adding 8259, we can increase the interrupt handling capability.
Detailed explanation-3: -The 8259A is a commonly used priority interrupt controller, which is specifically designed for use with interrupt signals INTR and INTA of Intel series. It is packaged in a 28 pin DIP. It uses NMOS technology and requires a single + 5V supply.
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