Hardware interrupts - computer architecture, Computer Engineering

Hardware interrupts:

Hardware interrupts-from I/O devices, processor, memory Software interrupts-produced by a program.

Direct Memory Access (DMA)

 Interrupt or Polling driven I/O incurs considerable overhead

  • Saving program state
  • Incrementing memory addresses
  • Multiple program instructions
  • Keeping track of word count

Transfer  high  amounts  of  data  at  high  speed  without  continuous  intervention  by  the processor

DMA controller keeps track of memory locations, directly transfers to memory (using the bus)

independent of the processor

Special control circuit needed in the I/O device interface which is called a DMA controller

1840_Hardware interrupts.png

Posted Date: 10/13/2012 7:24:42 AM | Location : United States







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

Write discussion on Hardware interrupts - computer architecture
Your posts are moderated
Related Questions
Images in the top area of Compass home page guide visitors to specific pages on the site. Now you will add links for navigation buttons. You will see that there are some ways to

What do you understand by WWW? WWW (World Wide Web): It is an architectural framework for accessing linked documents outspread over thousands of machines the whole world.

In order to restore the system defaults for all changes made with the format statement is Format Reset

When a window is repainted by the AWT painting thread, it sets the clipping regions to the area of the window that needs repainting.

What is common control switching system? Explain. Common Control Switching System: It is a functional block diagram of a common control switching system is demonstrated in figu

What are the Rules of Timescale directive Rules -  'Timescale directive, like all compiler directives, affects all modules compiled after directive,  whether  in  same  fi

Q. Define HEX directive? HEX: HEX directive enables the coding of hexadecimal values in body of the program. That statement directs assembler to treat tokens in source file wh

A) Execute a program where an ellipse follows the perimeter of the window. B)  Execute a program that can draw graphs, possibly following your plan from last week. Have it graph

What is a parallel port? A parallel port transfers data in the form a number of bits, typically 8 to 16, concurrently to or from the device.

What is automated information system Using this automated information system affords below benefits to the company and customers: -  System can be linked into websites to g