Handling multiple devices - computer architecture, Computer Engineering

Assignment Help:

Handling Multiple Devices

Interrupt Priority

  •   Continue to accept interrupt requests from higher priority components
  •   Disable interrupts from component at the same level priority or lower
  •   At the time of execution of interrupt-service routine
  •   Privileged instructions executed in the supervisor mode

Controlling device requests

  •   Interrupt-enable

KEN, DEN

Implementation of interrupt priory by using individual interrupt-request and acknowledge lines

Polled interrupts: Priority decided by the order in which processor polls the component (polls their status registers) vectored interrupts: Priority determined by the order in which processor tells component toput its code on the address lines (order of connection in the chain)

801_Handling Multiple Devices.png

(a)   Daisy chain

Daisy chaining of INTA: If device has not requested any service, passes the INTA signal to next device if necessitate service, does not pass the INTA, puts its code on the address lines Polled

518_Handling Multiple Devices1.png

 


Related Discussions:- Handling multiple devices - computer architecture

Number square, Ask question #MinimYour professor wants you to fill a two-di...

Ask question #MinimYour professor wants you to fill a two-dimensional N by N matrix with some numbers by following a specific pattern. According to his explanation as in the figure

Can you explain about internet protocol, Q. Can you explain about Internet ...

Q. Can you explain about Internet Protocol? Internet protocol specifies the rules which define the details of how computers communicate. It specifies exactly how a packet shoul

Explain characteristics of program translation model, Explain characteristi...

Explain characteristics of program translation model. The program translation model characteristics are: A program should be translated before this can be executed.

Other equivalences, Equivalences: In this following miscellaneous equi...

Equivalences: In this following miscellaneous equivalence rules are often useful during rewriting sessions. So there the first two allow us to completely get rid of implicatio

How to make frames for web documents, Q. How to make frames for web documen...

Q. How to make frames for web documents? Intelligent use of frames can give your pages a cleaner look and make easier to navigate. The fundamental concept goes like this: Every

Give brief summary of common aspects found in spreadsheets, Give brief summ...

Give brief summary of common aspects found in spreadsheets -  It's made up of columns and rows; every row is identified by a number and every column is identified with a letter

Dynamic programing, a ship is loaded with a stock of 3 items each unit of i...

a ship is loaded with a stock of 3 items each unit of item n has a wt wn and vn the max cargo wt the ship can take is the details of 3items are item(n):1 2 3 wt(wn):2 3 1 value(vn)

Differentiate between static and dynamic step loops, Differentiate between ...

Differentiate between static and dynamic step loops. Step loops fall into two classes: Static and Dynamic.  Static step loops have a fixed size that cannot be changed at runti

Explain the life cycle of java server pages, Discuss the life cycle of JSP....

Discuss the life cycle of JSP. A JSP (JavaServer Pages) page services requests like a servlet. Therefore, the life cycle and many of the abilities of JSP pages (particular in t

Dic, draw 4 bit binary to gray code

draw 4 bit binary to gray code

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