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 npblox framework, Designed, developed, tested and documented the de...

Designed, developed, tested and documented the demo created for NPBlox framework. NPBlox framework is a framework which enabled developers to create CLI/WEB/SNMP interfaces for

How do cmos and acpi relate to bios, Complementary metal oxide semiconducto...

Complementary metal oxide semiconductor (CMOS) refers to a chip inside your computer that saves your BIOS settings. As a result, the terms CMOS & BIOS are sometimes used interchang

Need of the assembly language, Q. Need of the assembly language ? Machi...

Q. Need of the assembly language ? Machine language code comprises the 0-1 combinations which computer decodes directly.  Though the machine language has the following problems

Convert the following decimal numbers into octal, Q. Convert the following ...

Q. Convert the following DECIMAL numbers into OCTAL, double check by converting the result OCTAL to DECIMAL. a) 932 b) 4429.625 c) 19

C++ programming, how does a ohms law c++ programming works

how does a ohms law c++ programming works

What is stack addressing, Q. What is Stack Addressing? In this addressi...

Q. What is Stack Addressing? In this addressing technique operand is implied as top of stack. It isn't explicit however implied. It employs a CPU Register known as Stack Pointe

What are the four necessary condition of deadlock prevention, What are the ...

What are the four necessary conditions of deadlock prevention? Four essential conditions for deadlock prevention are: 1.  Removing  the  mutual  exclusion  condition  implie

Functions in first-order logic sentences, Functions in first-order logic se...

Functions in first-order logic sentences - artificial intelligence: Functions may be thought of as special predicates, where we think of all but 1 of the arguments as input and

What is algorithm design technique, What is Algorithm Design Technique? ...

What is Algorithm Design Technique? An  algorithm  design  method  is  a  general  approach  to  solving  problems  algorithmically  that  is applicable to a variety of proble

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