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

Functional requirements of a control unit, Q. Functional Requirements of a ...

Q. Functional Requirements of a Control Unit? Let's first try to define functions that a control unit should perform in order to get things to happen. However in order to defin

Features of supply chain management, Features of Supply Chain Management ...

Features of Supply Chain Management Supply Chain Management Consultancy's scope is extensive, and typically contains:  1.  Sales order processing and customer service 2.

High level language program characteristics, Q. High Level Language Program...

Q. High Level Language Program Characteristics? So it is clear that new architectures must support high-level language programming. A high-level language system can be implemen

Storage devices, Logic manufactures have produced 'large scale' logic (LSI)...

Logic manufactures have produced 'large scale' logic (LSI) blocks to achieve complex functions; a typical set of logic functions is that of data storage. There are two main types o

Perform binary addition and subtraction on two numbers, Q Develop a menu ...

Q Develop a menu driven program to perform Binary addition and subtraction on two numbers that are inputted. Check that entered numbers are in base 2 or not else error messag

Problems for decision tree learning, A ppropriate Problems for Decision Tr...

A ppropriate Problems for Decision Tree Learning - Artificial intelligence It is a expert job in AI to select accurately the right learning representation for a particular lea

Define the system users, Q. Define the System users? System users are d...

Q. Define the System users? System users are defined as the people who employ information systems or who are affected by information system on a regular basis i.e. validating,

Describe about the layered computer design, Describe about the Layered comp...

Describe about the Layered computer design Introduction Layered computer design focuses on computer design. It uses top-down, layered approach to design and also to improve

What is a null object in c++, It is an object of a number of classes whose ...

It is an object of a number of classes whose purpose is to indicate that a real object of that class does not exist. One common use for a null object is a return value from a membe

Explain about the biometrics, Explain about the Biometrics  This inclu...

Explain about the Biometrics  This includes obtaining data and identifying characteristics automatically in security systems e.g. use of palm prints, finger prints, facial ima

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