Why does dma have priority over the cpu, Computer Engineering

Assignment Help:

Why does DMA have priority over the CPU when both request a memory transfer?

The data transfer monitored by DMA controller which is called as DMA channel. The CPU is included only at the starting and end of the transfer, when the CPU wishes to read or write a block of data, it issues a command to DMA Channel by sending read/write operation, address of I/O, number of words to be read or written, as DMA have priority over the CPU when both request a memory transfer.

 


Related Discussions:- Why does dma have priority over the cpu

Where particular header ends & next item begins of ipv6, As IPV6 contain mu...

As IPV6 contain multiple headers, how does it know where particular header ends and next item begins? Several headers types contain fixed size. For illustration a base header h

Determine the object oriented features, Object Oriented Analysis  T h...

Object Oriented Analysis  T he basics of object oriented analysis with the help of object oriented features. Analysis  Analysis is not a solution of the problem. We w

Enumerate in detail about image scanners, Enumerate in detail about Image S...

Enumerate in detail about Image Scanners Drawings, graphs, colour and black-and-white photos, or text can be stored for computer processing with an image scanner by passing an

Explain the storage class static, Explain the Storage Class Static Th...

Explain the Storage Class Static The Storage Class Static : Static declarations have two important and distinct uses. The more elementary use is to allow a local variable to

Basic logic gates, Basic logic gates Introduce the basic logic gates i...

Basic logic gates Introduce the basic logic gates in terms of a) their function, b) their circuit symbol, c) their truth table and d) their equivalent in Boolean a

What is the difference among choice and list, A Choice is displayed in a co...

A Choice is displayed in a compact form that needs you to pull it down to see the list of available choices and only one item may be selected from a choice. A List may be shown in

Explain about microcomputers, Q. Explain about Microcomputers? Microco...

Q. Explain about Microcomputers? Microcomputers: A microcomputer's CPU is a microprocessor. They are characteristically used as single usercomputer though present day microco

Explain what are user controls, Briefly explain what user controls are and ...

Briefly explain what user controls are and what server controls are and the differences between the two.   An ASP.NET control (sometimes known as a server control) is a server-

Rectifier output with fitters, Rectifier output with fitters: When hal...

Rectifier output with fitters: When half-wave and full-wave rectification suffice to deliver a type of DC output, neither produces constant-voltage DC (direct current). To gen

Explain the configuration of a step-by-step switching system, With neat dia...

With neat diagrams explains the configuration of a step-by-step switching system. The schematic diagram for an exchange is specified in figure. Each subscriber is associated to

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