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

How can you show only selected records with a form, How can you show only s...

How can you show only selected records with a form? There are dissimilar ways in which you can limit the records that you will see with a form, you can: Open a form and app

How a java program compiles, How a Java program compiles? First sou...

How a Java program compiles? First source file name should be extended with .java extension. For example Myprog.java Execute javac compiler. javac compiler creates

Show the liability of cpu in interrupt cycle, Q. Show the liability of CPU ...

Q. Show the liability of CPU in interrupt cycle? In the interrupt cycle the liability of CPU/Processor is to ensure whether any interrupts have happened checking presence of in

Convert number to hexadecimal and decimal, Perform the following calculatio...

Perform the following calculations assuming that all numbers are stored in 16-bit registers as 2's complement binary numbers with no overflow provision. Convert each of the numbers

Define compilers with high level programming language, Define Compilers wit...

Define Compilers with High Level Programming Language? All high-level programming language (except strictly interpretive languages) comes with a compiler. Effectively the compi

Distributed workstation cluster, A distributed workstation cluster must be ...

A distributed workstation cluster must be viewed like single computing resource and not as a group of particular workstations'.  Details of cluster were: 150MHz R4400 workstatio

Explain segment registers in bus interface unit, Q. Explain Segment Registe...

Q. Explain Segment Registers in bus interface unit? These are very significant registers of CPU. Why? We will answer this later. In 8086 microprocessor memory is a byte organiz

An example of load-store optimization using expression trees, Give LOAD-STO...

Give LOAD-STORE optimization based on expression trees for the expression (A+B)/(C-D). LOAD-STORE optimization based on expression trees for the expression (A+B)/(C-D) is given

What makes a circuit ''digital''?, All digital devices are made from circui...

All digital devices are made from circuits whichcan be switched between two possible states.These two states are represented by a voltagelevel at the output of the circuit e.g. 0V

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