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

Datawarehousing, ) Define a job scheduling strategy that will meet business...

) Define a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a picto

Duplicating processes, DUPLICATING PROCESSES : As we mentioned earlier dup...

DUPLICATING PROCESSES : As we mentioned earlier duplicating is a process whereby a master copy is prepared from which a large number of other copies are obtained with the help of

Illustrate function of 4-input multiplexer using basic gates, Illustrate fu...

Illustrate functional diagram of digital multiplexer . Write the scheme of a 4- input multiplexer using basic gates (AND/OR/NOT) and explain its operation. Ans: Multiple

What is telnet explain, Q. What is Telnet explain? TELNET stands for TE...

Q. What is Telnet explain? TELNET stands for TErminal NETwork. Telnet is both a protocol for connecting a local computer to a remote computer and a TCP/IP application. Telnet i

Define hyperlinks, Q. Define Hyperlinks? Hyperlinks, or links are one o...

Q. Define Hyperlinks? Hyperlinks, or links are one of the most significant characteristics of web pages. A link moves us from current page to a destination which is specified i

Show the connections used in sound cards, Q. Show the Connections used in S...

Q. Show the Connections used in Sound cards? Sound cards must have connections to allow different functions.  One of the most significant is MIDI port (MIDI signifies Musical I

Dynamic screen sequence, Dynamic screen sequence  for a  screen can be set ...

Dynamic screen sequence  for a  screen can be set using which commands? It uses two commands:- A) Set Screen B) Call screen.

What is common language runtime, What is "Common Language Runtime" (CLR)?  ...

What is "Common Language Runtime" (CLR)?  CLR is .NET equivalent of Java Virtual Machine (JVM). It is the runtime that changes a MSIL code into the host machine language code,

Explain characteristics of latch and flip-flop, Explain characteristics of ...

Explain characteristics of Latch and Flip-Flop. Latches are level-sensitive and transparent While the clock is high it passes input value to Output While the clock is l

State about sixth generation electronic computers, Sixth Generation (1990 -...

Sixth Generation (1990 - ) This  generation  begun  with  many  gains  in  parallel  computing,  both  in  hardware area and in improved understanding of how to build up algori

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