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

Data transmission and modems, Q. What is Data Transmission and Modems? ...

Q. What is Data Transmission and Modems? Data can be transferred between two stations in either serial or parallel transmission. Parallel data transmission, in which a group of

Develop a regular expression for real number and identifier, Develop a regu...

Develop a regular expression for Real number with optional fraction and Identifier. (i) A regular expression for real number with optional fraction is [+ | -] (d) +. (d)* (i

Face scanning security system - biometric, Face Scanning Security System - ...

Face Scanning Security System - Biometric Computer Security Systems Finally, face scanning security system are also one of biometric technologies. Generally, the principle of

What are the types of assemblies, What are the Types of Assemblies? One...

What are the Types of Assemblies? One of the drawback of using Visual Studio.NET and the .NET framework to develop applications has been the lack of cross-platform support. As

How to turn on the session support in php, The session support can be turne...

The session support can be turned on automatically at the site level, or manually in every PHP page script: * Turning on session support automatically at the site level: Set s

Determine about the locator devices, Determine about the Locator Devices ...

Determine about the Locator Devices Mouse  A mouse is small hand-held box used to position the screen cursor. Wheels or rollers on the bottom of the mouse can be used to r

Copy file from a floppy disk to the hard disk, Q. Copy file from a floppy d...

Q. Copy file from a floppy disk to the hard disk? While using a PC, often you need to copy file from a floppy disk to the hard disk or vice-versa.  For instance, you buy some s

Which data structures used in language processing, Which structure can be u...

Which structure can be used as a criterion for classification of data structures used in language processing. And. Nature of a data structure, purpose of a data structure and l

Interpolation search, Interpolation Search The next task is to implemen...

Interpolation Search The next task is to implement a variable size decrease-and-conquer solution to search. See Levitin [2007] pp 190 for a detailed description of the interpol

Explain extranet, Extranet : Extranet is Extension of an Intranet that ...

Extranet : Extranet is Extension of an Intranet that makes the latter accessible to outside companies or individuals with or without an intranet. It is also described as a coll

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