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

Which one state is not a fundamental process state, Which one state is not ...

Which one state is not a fundamental process state? Ans. Blocked state is not a fundamental process state.

Write a program for comparing two strings, Q. Write a program for comparing...

Q. Write a program for comparing two strings? Let's write a program for comparing two strings. Determine the following piece of code that has been written in C to compare two s

Illustrate lcd technology, Q. Illustrate LCD Technology? The technology...

Q. Illustrate LCD Technology? The technology behind LCD is known as Nematic Technology since the molecules of liquid crystals used are nematic which implies that rod-shaped. Th

Connectivity options accessible to internet subscribers, What are the diffe...

What are the different connectivity options accessible to Internet Subscribers? Explain in detail. Internet Connectivity Options: Internet access is perhaps one of the ma

What is common language runtime, What is "Common Language Runtime" (CLR)?  ...

What is "Common Language Runtime" (CLR)?  CLR is .NET equivalent of Java Virtual Machine (JVM). It is the runtime that changes a MSIL code into the host machine language code,

Explain non-pre-emptive algorithms, Explain non-pre-emptive algorithms?   ...

Explain non-pre-emptive algorithms?   Non preemptive algorithms: In this algorithm a job is provided to CPU for execution as long as the job is non-completed the CPU cannot

OS, why we say OS is a resource allocator and control program

why we say OS is a resource allocator and control program

How the conversation speed of A/D converter is maximum, The conversation sp...

The conversation speed of an analog to digital converter is maximum with which technique? Ans. With parallel comparator AD converter technique the conversation speed of an ana

Explain the advantages of object oriented analysis design, Advantages of Ob...

Advantages of Object oriented analysis design The OO approach inherently makes every object a standalone component which can be reused within specific stat problem domains we

What is the length of function code at user-command, What is the length of ...

What is the length of function code at user-command? Every menu function, push button, or function key has an associated function code of length FOUR (for example, FREE), which

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