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

Construct the finite automata, Give the regular expression of the set of al...

Give the regular expression of the set of all even strings over the alphabet {a, b} along with at least one of the two substrings aa or bb. As well construct the finite automata wh

Observed speedup and parallel overhead, Observed Speedup Observed speed...

Observed Speedup Observed speedup of a system which has been parallelized, is defined as:                             Granularity is one of the easiest and most extensi

Average enzyme activity , Activity of a some  enzyme was calculated  in ext...

Activity of a some  enzyme was calculated  in extracts from brain, heart and lung. In every  tissue,  the activity was calculated  various  times, giving the following results (in

What is strobe, What is Strobe. Asynchronous data are transfer among tw...

What is Strobe. Asynchronous data are transfer among two independent unit needs that control signals to be transmitted among the communicating units to indicate the time at whi

What are the components of loadrunner, The workings of LoadRunner are The V...

The workings of LoadRunner are The Virtual User Generator, Controller, and the Agent process, LoadRunner examines and Monitoring, LoadRunner Books Online. What Component of LoadRun

Association and classes betwnn student and university, Association and clas...

Association and classes betwnn student and university Association and classes are alike in the sense that classes describe objects, and association describe links. Figure shows

Important parameters for transmitting data, For this project, we hope to us...

For this project, we hope to use the basic idea of InfraRed (IR) communication for our television in ES103.  In ES103, we have a Sony large-screen television that we hope to commun

What is write miss, What is write miss? During the write operation if t...

What is write miss? During the write operation if the addressed word is not in cache then said to be write miss.

Using library methods returns number of threads, Q. Using Library methods r...

Q. Using Library methods returns number of threads? #include void subdomain(float x[ ], int istart, int ipoints) { int i; for (i = 0; i x[istart+i] = 123.456;

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