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

Fuzzy logic - artificial intelligence, Fuzzy set theory provides a means fo...

Fuzzy set theory provides a means for modeling the kind of uncertainty associated with vagueness, with imprecision, and/or with a lack of information regarding a particular element

What are the types of operations required for instructions, What are the va...

What are the various types of operations required for instructions?  Data transfers among the main memory and the CPU registers Arithmetic and logic operation on data

What are the features of cisc processors, What are the Features of CISC Pro...

What are the Features of CISC Processors The standard features of CISC processors are listed below:  CISC chips have a large amount of dissimilar and complex instructions.

Write an applet, Write an applet that can interact with both the HTTP clien...

Write an applet that can interact with both the HTTP client and HTML interpreter in a browser.  import java.applet.*; import java.net.*;                        // import pac

Dick cheney approach, How many "true" terrorists are there in the US?  I do...

How many "true" terrorists are there in the US?  I don't know, but let's suppose that there are 3000 out of a total population of, say, 3,000,000.  That is, one person in 100,000 i

Name some popular storage devices, Name some popular storage devices In...

Name some popular storage devices In contrasts with storage, which 1) retains data and programs irrespective of whether they are currently in use or not, (2) retains data

Double negation, Double Negation : All parents are forever correcting ...

Double Negation : All parents are forever correcting their children for the find of double negatives,  there we have to be very alert with them in natural language like: "He d

Explain 100 line exchange with selector finder, Explain 100 line exchange w...

Explain 100 line exchange with selector finder. Design: In place of 100 two-motion selectors as in the case of Design 3, suppose we consider only 24 two-motion selectors. Whe

Online teaching jobs, Dear, I''m an engineering post graduate in computer s...

Dear, I''m an engineering post graduate in computer science. I would like to work as online tutor. please suggest ideas. Thank You.

Define wide area network, Q. Define Wide Area Network? Wide Area Networ...

Q. Define Wide Area Network? Wide Area Network (WAN): It takes a large geographical area and frequently owned by a state. Data transfer rate is low (few KBPS to 10 MBPS) and er

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