Intel 8259 interrupt controller: 

The 8088 processor has only two interrupt control inputs, and interrupt request (INTR) and non mask able interrupt (NMI). NMI are interrupts that can't be masked (for examples: power loss ,memory parity error). The interrupt controller has many functions:

• It's receives interrupt requests from up to eight different sources.
• It's prioritized and queues interrupts that come at the same time
• it 's masks interrupt requests when instructed by the CPU
• It's processes the CPU's interrupt-acknowledge signal by sending the interrupt vector number to the CPU.

 

Posted Date: 10/10/2012 9:13:22 AM | Location : United States

Ask an Expert

Related Discussions:- Intel 8259 interrupt controller-microprocessor, Assignment Help, Ask Question on Intel 8259 interrupt controller-microprocessor, Get Answer, Expert's Help, Intel 8259 interrupt controller-microprocessor Discussions

Write discussion on Intel 8259 interrupt controller-microprocessor
Your posts are moderated

Write your message here..

Related Questions

Program, write a program assembly language for adding two 3*3 matrix write a program assembly language for adding two 3*3 matrix

Microcontroller, bello need help with a final project , I have to do a pres... bello need help with a final project , I have to do a presentation on a digital stop watch , but I have to use edsim51 to make it wondering if you guys can help me

Program which allows the user to select from menu, Write a 32-bit program w... Write a 32-bit program which when run, allows the user to select from a menu: (1)    Enter a Binary Number (2)    Enter a Decimal Number (3)    Enter a Hexadecimal Number

Program that will compute and output tuition cost, Write an assembly progra... Write an assembly program that will compute and output tuition cost: a. accept keyboard input of the number of credit hours taken b. accept keyboard input of the type of classes 1

Help with homework (python), i have trying to do the homework but there is ... i have trying to do the homework but there is a mistake. (Counting positive and negative numbers and computing the average of numbers) write a program that reads an unspecified nu

Memory segmentation-microprocessor, Memory Segmentation : The  memory ... Memory Segmentation : The  memory in an 8086/8088  based system is organized as segmented memory. In this scheme, the whole physically available memory can be divided into a n

Machine level programs-microprocessor, Machine Level Programs In this s... Machine Level Programs In this section, a few machine levels programming instance, rather then, instruction sequences are presented for comparing the 8086 programming with that

Dq-dt-assemblers directive-microprocessor, DQ:   Define  Quad word:-  Th... DQ:   Define  Quad word:-  This directive is taken in use to direct the assembler to reserve 4 words (8 bytes) of memory for the specified variable and can initialise it having

Assigment help, assempbly language routine that takes an array named A cont... assempbly language routine that takes an array named A containing n bytes of postive numebrs and fills two arranys, array B containing n words and array C containing n long words

Project, Any small project which can implement on any software. No need any... Any small project which can implement on any software. No need any external hardware approach.