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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. It is packaged in a 28-pin
DIP, uses NMOS technology and requires a single
a
5V supply. Circuitry is static, requiring no clock input.
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Why Intel 8259A PIC is used in microprocessor based system?
The Intel 8259A Programmable Interrupt Controller is used to manage interupts from various sources, source as the hard disk, the floppy disk, the communications ports, the keyboard, the real-time clock, etc., and provide interrupt vectors as specified by the program. Originally designed for the 8086, in 8086 mode it works with the 8086/8088 and its functionality is included in most South Bridge chipsets today.
What is Intel 8259 chip?
The Intel 8259 is a programmable interrupt controller.
What chip controls hardware interrupts?
Hardware interrupts can be controlled by the 8259 Programmable Interrupt Controller
What thing indicate a hardware conflict?
Received when two devices were trying to use the same interrupt request (or IRQ) to signal an interrupt to the Programmable Interrupt Controller (PIC).
In computing what does APIC stand for?
In computing, the term APIC stands for Advanced Programmable Interrupt Controller. It is a more advanced version of a programable interrupt controller, which uses interrupts onto CPU lines.
What interrupt is best to avoid because it is used as a connection between two interrupt controller chips?
In an IBM PC or compatible computer, IRQ2 should not be used because it is internally cascaded from the second 8259 Programmable Interrupt Controller, so as to provide IRQ8 through IRQ15.
What is the full meaning of PLC in television equipment?
Programmable Logic Controller
How do you get your PLC?
A PLC is programmable logic controller (PLC) or programmable controller is a digital computer used for automation of electromechanical processes.
Where can one purchase a programmable logic controller?
There are many websites where you can purchase a programmable logic controller. They include Automation Direct, The Learning Pit, eBay, and other websites.
What is meant by ICW1?
Terms using the acronym ICW1 include: "Initialization Command Word One" (programmable interrupt controller) "Information Coordination Training, 1st" (a 1999 seminar in Kazakhstan) (American International Health Alliance)
What are applications of programmable logic controller?
emergency shut down
What programming language can be use in programmable interface controller?
C
