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

Mapping, what is transform mapping and transaction mapping?

what is transform mapping and transaction mapping?

Inverse of exclusive or known as xnor gate, Truth table of NAND and NOR can...

Truth table of NAND and NOR can be made from NOT (A AND B) and NOT (A OR B) correspondingly. Exclusive OR (XOR) is a special gate whose output is one only if two inputs aren't equa

Floating point arithmetic pipelines, Floating point Arithmetic pipelines ...

Floating point Arithmetic pipelines Floating point computations are the finest candidates for pipelining. Take the instance of addition of two floating point numbers. Following

Computer systems architecture, Assume that you are working in a software co...

Assume that you are working in a software company as a programmer and a bank is your company's client. The Bank is a most popular and one of the leading banks in Malaysia. Your

The last character of the ldb name, The last character of the LDB name deno...

The last character of the LDB name denote?? Application

Show the spawned program, Q. Show the spawned program? include "pvm3.h"...

Q. Show the spawned program? include "pvm3.h"  main() {    int ptid, msgtag;    char buf[100];    ptid = pvm_parent();    strcpy(buf, "hello, world from ");

Requirements for cache simulator, Using your cache simulator and using smal...

Using your cache simulator and using smalltex.din as your memory trace determine the total miss rate, compulsory miss rate, capacity miss rate, and conflict miss rate for the follo

What are the 3 segments of the default route, What are the 3 segments of th...

What are the 3 segments of the default route, that is there in an ASP.NET MVC application? Ans)  Segment 1st - Controller Name Segment 2nd - Action Method Name Segment 3r

Explain about cathode ray tubes, Q. Explain about Cathode Ray Tubes? Ca...

Q. Explain about Cathode Ray Tubes? Cathode ray tube is the major technology on that televisions and monitors have been based.  CRT is a partially evacuated glass tube which is

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