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

Zero flag, Zero flag: The next line compares the value in register. A ...

Zero flag: The next line compares the value in register. A with the value 1. If they are equivalent, the Zero flag is set (to 1). The next line then jumps to start: only if th

Comparison between 8086 and 8088, Comparison between 8086 and 8088 All ...

Comparison between 8086 and 8088 All the changes in 8088 above 8086 are indirectly or directly related to the 8-bit, 8085 compatible data and control bus interface. 1) The p

Introduction to 80 x 86 assembly language, Using the windows32 framework, w...

Using the windows32 framework, write a complete 80x86 program for Programming Exercises 4.3 number 3, on pages 130-131 of the textbook. Follow all coding conventions mentioned in

Segmentation, segmentation and overlapping in assemble language

segmentation and overlapping in assemble language

PIC MCU, CAN U GIVE BRIEF THEORY

CAN U GIVE BRIEF THEORY

The 486, The 486 Introduced in the year 1989 the 80486 did not feature ...

The 486 Introduced in the year 1989 the 80486 did not feature any radically new processor technology. Instead, it joints a 386 processor, a cache memory controller and a math c

Bcsl-022, define accounting.briefly explain the accounting concepts which g...

define accounting.briefly explain the accounting concepts which guide the accountant at the recording stage.

Introduction to microprocessor, Introduction to Microprocessor: Micropr...

Introduction to Microprocessor: Microprocessor works like a CPU in a microcomputer. It's present as a single IC chip in a microcomputer. Microprocessor is the soul of the machi

Need algorithm for multiplication in assemby with out mul, need algorithm f...

need algorithm for multiplication in assembly with out mul function?

Program to average ten 16-bit values, Write a MC68HC12 assembly language pr...

Write a MC68HC12 assembly language program to average ten 16-bit values that are stored starting at address $1100. Place the two-byte result at $1110. Use indexed addressing. Us

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages