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

What is load-through or early restart, What is load-through or early restar...

What is load-through or early restart? When a read miss happens for a system with cache the needed word may be sent to the processor as soon as it is read from the main memory

What is e-brokerage, What is e-brokerage? E-brokerage is an investment ...

What is e-brokerage? E-brokerage is an investment house that permits you to buy and sell stocks and get investment information from its Web site.

Fundamental components of a CPU, Q. Fundamental components of a CPU? Th...

Q. Fundamental components of a CPU? The two fundamental components of a CPU are control unit and arithmetic and logic unit. The control unit of CPU selects and interprets progr

Command mode to insertion mode using vi editor, How to enter from command m...

How to enter from command mode to insertion mode using Vi Editor? Ans) There are various commands that put the VI editor into insert mode. The most usually used commands to get

Explain simple interfacing, Q. Explain Simple Interfacing? The followin...

Q. Explain Simple Interfacing? The following is a sample of the coding, used for procedure interfacing: PUBLIC CUROFF             _TEXT SEGMENT WORD PUBLIC 'CODE'

What is internal path length, Internal Path length It is described as t...

Internal Path length It is described as the number of node traversed while moving by one particular node to any other node in the tree.

Explain problem-oriented and procedure-oriented language, Explain differenc...

Explain difference between Problem-oriented and procedure-oriented language. Problem-oriented and procedure-oriented language: The programming languages which can be utilized

One of the fault base testing techniques, One of the fault base testing tec...

One of the fault base testing techniques is:- Mutation testing is the fault base testing.

Explain pre-emptive scheduling, Explain Pre-emptive scheduling? Pre-em...

Explain Pre-emptive scheduling? Pre-emptive scheduling: in its approach, center processing unit can be taken away from a process if there is a require while in a non-pre-empt

Algorithm and pseudocodes, develop an algorithm using pseudocode for comput...

develop an algorithm using pseudocode for computing cos(x) and sin(x). use a sentinel controlled while loop. use the series definition of e^+-jx

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