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

Describe the term- macros, Describe the term- Macros A macro is a key o...

Describe the term- Macros A macro is a key or name which signifies a series of commands or key strokes. Many applications allow single nominated key or single word on a keyboar

Cut-off search - artificial intelligence, Cut-off Search: By using  a m...

Cut-off Search: By using  a minimax search, all we have to do is program, in a game playing situation our agent to look at the whole  search tree from the current state of the

What are compilers and interpreters, What are compilers and interpreters? ...

What are compilers and interpreters? Compiler and Interpreter: These are two types of language translators. A compiler changes the source program (user-written program) int

At least two optional data fields, As an XML expert you are needed to model...

As an XML expert you are needed to model a system for an online furniture shop. After an interview with the shop manager you have the certain information: The detail of th

Write the game using writing functions, The year is 2199. For many generati...

The year is 2199. For many generations, the robotic Cyleth have faithfully served humanity. However, under the direction of the computerized superintelligence Skyweb, they have tur

Define the refresh rates and frame rate, Q. Define the Refresh Rates and fr...

Q. Define the Refresh Rates and frame rate? A special circuit known as the Video Controller scans video memory one row at a time and reads data value at each address sending th

Design issues related to interrupt-driven input - output, Q. Design issues ...

Q. Design issues related to interrupt-driven Input - output? So interrupt handling includes interruption of currently executing program, execution of interrupt servicing progra

Internrt application, what is the significance of telecommunications deregu...

what is the significance of telecommunications deregulation for managers and organization

Subtract two number by using 1's complement, Subtract the given number usin...

Subtract the given number using 1's complement 11011 - 11001 Ans. 11011 - 11001 = X - Y                             X =    11011  1's complement of Y =    00110

What do you mean by term procedure, What do you mean by term procedure? Dif...

What do you mean by term procedure? Differentiate between far call and near call? PROC: PROC and ENDP directives indicate the start and end of a procedure. These directives for

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