Explain dma and interrupt breakpoints, Computer Engineering

Assignment Help:

Q. Explain about DMA and Interrupt Breakpoints?

DMA interface transfers complete block of data one word at a time directly to or from memory without going through processor. When transfer is complete, DMA interface transmits an interrupt signal to processor. So in DMA processor involvement can be restricted at beginning and end of transfer that can be displayed as in figure above. However question is when should DMA take control of bus?

For this we would recall phenomenon of execution of an instruction by processor. Figure below displays five cycles for an instruction execution. Figure also displays five points where a DMA request can be responded to and a point where interrupt request can be responded to. Please note an interrupt request is acknowledged only at one point of an instruction cycle and that is at interrupt cycle.  

2496_Explain DMA and Interrupt Breakpoints.png

Figure: DMA and Interrupt Breakpoints


Related Discussions:- Explain dma and interrupt breakpoints

What is .net and .net framework, What is .NET / .NET Framework?  It is ...

What is .NET / .NET Framework?  It is a Framework in which Windows applications might be developed and run. The Microsoft .NET Framework is a platform for building, deploying,

Running time - metrics for performance evaluation, Running Time - Metrics f...

Running Time - Metrics for performance evaluation: Running time is amount of time consumed in execution of an algorithm for a provided input on N-processor based parallel comp

increase the number of rows or columns in a worksheet, How can I increase ...

How can I increase the number of rows or columns in a worksheet? Ans) In Excel, each workbook has 255 columns and 65,526 rows. These values are fixed and cannot be changed. If

Write a subroutine in c which toggles the cursor, Q . Write a subroutine in...

Q . Write a subroutine in C which toggles the cursor? Write a subroutine in C which toggles the cursor. It takes one argument which toggles the value between on (1) and off (0)

Master scheduling , The alpha beta company generates two products; A and B,...

The alpha beta company generates two products; A and B, that are made from components C and D. Given the following product structures, master scheduling requirements and inventory

Show organisation of clos network, Q. Show Organisation of Clos network? ...

Q. Show Organisation of Clos network? Clos network: This network was designed by Clos (1953).  It's a non-blocking network and offers full connectivity similar to crossbar netw

Explain the fundamentals of c programming, Explain the Fundamentals of C Pr...

Explain the Fundamentals of C Programming? The C is a general purpose structured programming language. The C was developed and first implemented by the Dennis Ritchie at Bell L

What is concurrent control, What is concurrent control? Control resides...

What is concurrent control? Control resides concurrently in various independent objects, every a separate task. A task can wait for input but other task continues implementatio

Write a pseudocode for a program, Write a pseudocode for a program that acc...

Write a pseudocode for a program that accepts 10 numbers from a user and calculates the sum of all the numbers entered that are greater than or equal to 10.

Datatype functions for message passing, Q. Datatype Functions for Message P...

Q. Datatype Functions for Message Passing? Datatype: It denotes type of data in message. This field is essential in the sense that MPI supports heterogeneous computing and diff

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd