INTRODUCTION TO MICROPEOCESSOR
MICROCOMPUTER SYSTEM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
It is the programmable interrupt controller that adds eight vectored priority encoded interrupts to the microprocessor.
|
|
8088
|
|
|
80386SX
|
|
|
8259A
|
|
|
Pentium II
|
Explanation:
Detailed explanation-1: -The Intel 8259A Programmable Interrupt Controller handles up to eight vectored priority interrupts for the CPU. It is cascadable for up to 64 vectored priority interrupts without additional circuitry.
Detailed explanation-2: -It is also known as a priority interrupt controller and was designed by Intel to increase the interrupt handling ability of the microprocessor. An 8259 PIC never services an interrupt; it simply forwards the interrupt to the processor for the execution of interrupt service routine.
There is 1 question to complete.