Intel 8259 interrupt controller-microprocessor, Assembly Language

Assignment Help:

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.

Related Discussions:- Intel 8259 interrupt controller-microprocessor

External hardware-interrupts-microprocessor, External Hardware-Interrupts ...

External Hardware-Interrupts External hardware-interrupts are generated by controllers of external devices or coprocessors and are connected to the processor pin for Non Mask a

Logical instruction-microprocessor, Logical Instruction : This type of...

Logical Instruction : This type of instructions is utilized for carrying out the bit by bit shift, basic logical operations or rotate. All of the condition code flags are affe

LC-3 Program, Write an Lc-3 assembly language program to read in a sequence...

Write an Lc-3 assembly language program to read in a sequence of single-digit positive integers from the keyboard(one integer per line) until the sentinel value of 0 is reached and

Odd and even numbers, hi, i''m new to assembly language and my teacher told...

hi, i''m new to assembly language and my teacher told us to look for an example of the odd and even numbers program using debug.exe in ms dos as a guide since we just started. plea

8086 alp, to find the matrix addition

to find the matrix addition

Cbw-cwd-arithmetic instruction-microprocessor, CBW: Convert Signed Byte to...

CBW: Convert Signed Byte to Word: This instruction converts a signed byte to a signed word. In other terms, it copies the sign bit of a byte to be converted to all of the bits in

Thesis statement of " ambition " please, thesis statement about ambition in...

thesis statement about ambition in life

Program for dispaying lcd characters, #include"lcd.asm" ; assembly fi...

#include"lcd.asm" ; assembly file is included for displaying lcd characters Main: PORTA EQU 0xF80 ; PORTS PORTB EQU 0xF81 PORTC EQU 0xF82 PORTD EQU 0xF83 R

Program to convert decimal to binary number, Program is written but has err...

Program is written but has errors returning values from the procedure.

Write a program, write a program that calculates the fibonacci series: exce...

write a program that calculates the fibonacci series: except for the first two numbers in the sequence

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages