Dma controllers - computer architecture, Computer Engineering

Assignment Help:

DMA controllers in computer system:

  •   DMA Controller
  •   Part of the I/O device interface
  •   DMA Channels
  •   Performs functions that in general would be performed by the processor
  •   Bus signals that control transfer
  •   Provides memory address
  •   Keeps track of number of transfers
  •   Under control of the processor

INTERFACE CIRCUITS

o   Provides a storage buffer for at least one word of data.

o   Circuitry required connecting an I/O device to a computer bus

o   Contains address-decoding circuitry

o   Contains status flag that can be accessed by the processor.

o   Generates the appropriate timing signals required by the bus control scheme.

o   Performs format conversions

o   Ports

o  Parallel port

o  Serial port

Keyboard to processor connection

8_DMA controllers.png

 


Related Discussions:- Dma controllers - computer architecture

Define diffrent aspects of a system, Q. Define diffrent aspects of a System...

Q. Define diffrent aspects of a System? The aspects of a System are as below: Organization implies order and structure. It is aprearrangement of components which helps t

The javascript validation not run on the asp.net, Why The JavaScript Valida...

Why The JavaScript Validation Not Run on the Asp.Net? The Asp.Net Button Is post backed on the server & not yet Submit & when it goes to the server its states is lost so if we

Programming , Adavantages and disadvantages of compilers and interpreters

Adavantages and disadvantages of compilers and interpreters

Adding xml files to your page, Step 1: Choose File -> Import XML into Templ...

Step 1: Choose File -> Import XML into Template Step 2: Select the XML file & click Open When an XML file is imported, Dreamweaver merges XML content in Template, which is be

Keys, why impotant keys

why impotant keys

Illustrate diffrent types of modems, Q. Illustrate Diffrent types of modems...

Q. Illustrate Diffrent types of modems? There are four different types of modems: half-duplex, full-duplex, synchronous, and asynchronous.With half-duplex modems data can be tr

List factors that determine the storage device performance, List the factor...

List the factors that determine the storage device performance. i.Access time ii.Cycle time iii.Transfer Rate.

Determine the logic gate having input 0 and output 1, The output of a logic...

The output of a logic gate is 1 when all its inputs are at logic 0. The gate is either ? Ans. When all inputs of logic gate at logic 0 and output is 0. The gate is either a NOR

Write decoder functionality in only one statement in verilog, Write decoder...

Write decoder functionality in only one statement in verilog module decoder( // Outputs dout, // Inputs din ); input [3:0] din; output [15:0] dout;

What is default look-and-feel of a swing component, The default Look and Fe...

The default Look and Feel of swing components are Java Look-and-Feel.

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