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

De morgans laws, De Morgan's Laws : With continuing the relationship b...

De Morgan's Laws : With continuing the relationship between ^ and ? , we can also needs De Morgan's Law to rearrange sentences involving negation in conjunction with these con

Reading decision trees - artificial intelligence, Reading Decision Trees ...

Reading Decision Trees There is a link between decision tree representation and logical representations, which may be exploited to form it more easy  to understand and learned

What is a privileged instruction, What is a privileged instruction? To ...

What is a privileged instruction? To protect the operating system of a computer from being corrupted by user programs, particular instructions can be executed only whereas the

What is called when distortion caused on telephone line, Distortion caused ...

Distortion caused on telephone line by an adjacent one is called (A) Cross Fire                      (B) Inductive Disturbance (C)  Cross Talk                     (D) Non

How reassembling of ip fragments is advantageous, Reassembling of IP fragme...

Reassembling of IP fragments at the ultimate destination is advantageous. Give reasons. Needing the ultimate destination to reassemble the fragments has two major advantages. F

What is multiplexer, Q. What is multiplexer? Explain 4 X 1 Multiplexer.   ...

Q. What is multiplexer? Explain 4 X 1 Multiplexer.    Q. Explain the working of a Binary Half-Adder. Construct a Full-Adder from Half- Adder. Also draw the circuit diagram of full

Explain the effect of cell breathing, Problem : (a) State and describe ...

Problem : (a) State and describe the transmission ranges associated with wireless transmission. Illustrate your answer with a diagram. (b) Sketch a graph representing how a

Implementation of logic micro-operations, Q. Implementation of Logic Micro-...

Q. Implementation of Logic Micro-operations? For implementationlet's first ask questions how many logic operations can be performed with two binary variables. We can have 4 pos

Robotics artificial intelligence, what is robot?explain different types of ...

what is robot?explain different types of robots with respect to joints.

What are the major components of a web browser, What are the major componen...

What are the major components of a web browser? A browser contains a set of clients, a controller and a set of interpreters which manages them. All browsers must have an HTML

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