Hardware interrupts - computer architecture, Computer Engineering

Assignment Help:

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


Related Discussions:- Hardware interrupts - computer architecture

By which the information is stored in ROM, The information in ROM is stored...

The information in ROM is stored ? Ans. By the manufacturer throughout fabrication of the device.

create a class called auditorium, Create a class called auditorium that sp...

Create a class called auditorium that specifies the seats in the auditorium. The class should include at least one data item: seat (two dimensional array of Char) and at least thre

Cascade delete options, Create a relationship among Employee and Sales tabl...

Create a relationship among Employee and Sales tables using Emp No. Enforce referential integrity and select both cascade update and cascade delete options. Save the relationship.

Explain about iframe, Q. Explain about IFRAME? is an HTML 4.0 addition...

Q. Explain about IFRAME? is an HTML 4.0 addition to frames toolbox. Presently only MSIE supports . Unlike frames created employing and

Explain about data segment, DATA SEGMENT  NUM1            DB      15h;...

DATA SEGMENT  NUM1            DB      15h;     First number   NUM2            DB      20h;     Second number  RESULT DB?  ; Put sum here  CARRY DB? ; Put any carry he

Explain the do while loops, Explain The do while loops The do while loo...

Explain The do while loops The do while loops is similar, but the test occurs after the loop body is executed. This ensures that the loop body is run at least once.

There no polymorphic-type response, Why is there no polymorphic-type respon...

Why is there no polymorphic-type response from a create() or find() method? Ans) The EJB Specification forbids this behavior, and the weblogic.ejbc compiler checks for this beha

Representation in prolog - logic programs, Representation in Prolog - Logic...

Representation in Prolog - Logic Programs: If we justimpose some additional constraints on first-order logic, so than we get to a representation language knowing as logic prog

What is a size category, What is a Size Category? The Size category ve...

What is a Size Category? The Size category verifies the probable space needs of the table in the database.

Differentiate between programming tools and authoring tools, Diffrentiate p...

Diffrentiate programming tools and authoring tools Distinction between programming tools and authoring tools is not at first obvious. Though, authoring tools require less techn

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