Dma controllers - computer architecture, Computer Engineering

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

 

Posted Date: 10/13/2012 7:27:06 AM | Location : United States







Related Discussions:- Dma controllers - computer architecture, Assignment Help, Ask Question on Dma controllers - computer architecture, Get Answer, Expert's Help, Dma controllers - computer architecture Discussions

Write discussion on Dma controllers - computer architecture
Your posts are moderated
Related Questions
Explain FDM and show how CCITT standards help in building the base band? Frequency Division Multiplexing: This is the process of combining some information channels through s

Rigging is use for if we need to give animation for any object or character then we apply to character or object internal bone setting(like our bones).that is known as rigging. Whe

Write short note on code optimization. Code optimization: It is the optional phase designed to enhance the intermediate code therefore the Ultimate object program runs quicke

How can I pass parameters to my simulation? A  test  bench  and  simulation  would likely  need  many  different  parameters  and  settings  for  various sorts of tests and con

Explain dynamic server creation briefly. Dynamic Server Creation: If only one server handles one request at a time, each client should wait while the server fulfils the on

Explain Client Server Model. In the client- server model, communication usually takes the form of a request message from the client to the server asking for several works to be

MIPS - computer architecture: The MIPS ISA, so far 3 instruction formats Fixed 32-bit instruction 3-operand, load-store architecture 32 general-purpose register

l need a help for my project pllz:) Write a program that will simulate ATM machine. The Program should prompt the user to enter a valid PIN password number of 5 digits (PIN: 12312)

Example of circuit switching and S&F (Stored and Forward) switching is (A) Telephone and Post of Telegraph (B) Video Signal Post or Telegraph (C)  Digital Signal P

Which structure can be used as a criterion for classification of data structures used in language processing. And. Nature of a data structure, purpose of a data structure and l