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

Id3 algorithm, ID3 algorithm: Further for the calculation for informat...

ID3 algorithm: Further for the calculation for information gain is the most difficult part of this algorithm. Hence ID3 performs a search whereby the search states are decisio

Fundamental functional units of a computer, Fundamental functional units of...

Fundamental functional units of a computer: QUE. What are the fundamental functional units of a computer? Ans: A computer consists of 5 functionally independent major parts

Representation scheme in artificial intelligence, Representation scheme in ...

Representation scheme in artificial intelligence: It is not hard to see why logic has been popular representation scheme in AI: In this way, It is easy to represent knowl

Binary number system using 8 bit registers, Q. Binary number system using 8...

Q. Binary number system using 8 bit registers? Add 25 and -30 in binary number system using 8 bit registers using: Signed magnitude representation Signed 1's comple

Main memory location, Poor Richard's cache as explained in Conference Topic...

Poor Richard's cache as explained in Conference Topic 2. Suppose that a 7th word (gggg gggg) from main memory location 011110 is read and stored in cache. a) Determine the cach

What is asynchronous transmission, What is asynchronous transmission An...

What is asynchronous transmission An asynchronous transmission technique used in many interactive terminals employ special bits. With this method each character consists of thr

Assembly 8086 program that computes the minimum and maximum, Write a progra...

Write a program that computes the minimum and maximum of elements in an array in Assembly 8086.

Nmknl''knl, Ask question bhjjnjnnjnjm#Minimum 100 words accepted#

Ask question bhjjnjnnjnjm#Minimum 100 words accepted#

What are the different types of parameters, What are the different types of...

What are the different types of parameters? Formal Parameters: Parameters, which are described during the definition of subroutine with the FORM statement.

Describe the size and speed of scanners, Q. Describe the Size and Speed of ...

Q. Describe the Size and Speed of Scanners? Before actual scanning, a quick, low resolution scan known as pre-scan is made to preview the image and select scanning area. After

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