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

Aussie wine tours awt, Business Narrative Aussie Wine Tours (AWT) condu...

Business Narrative Aussie Wine Tours (AWT) conduct tours of the wineries of Victoria's Yarra Valley wine region. The tours take place on the last Sunday of each month. Currentl

Discuss the mount and unmount system calls, Discuss the mount and unmount s...

Discuss the mount and unmount system calls. The privileged mount system call is used to join a file system to a directory of another file system; the unmount system call detach

Draw a circuit of TTL gates with Wired-AND connection, Draw a circuit of TT...

Draw a circuit of TTL gates with Wired-AND connection and explain its operation. Wired - AND Connection In digital IC's NAND and NOR gates are most frequently used. For th

Use of typewriters for multiple copies, Use of Typewriters for Multiple Cop...

Use of Typewriters for Multiple Copies : Offices frequently require copies of various letters and documents. The simplest method is to make the copies at the same time along with

Pd controller, PD controller Student should aim for Kp and Kd value that...

PD controller Student should aim for Kp and Kd value that will minimize the steady error with improved rise time and settling time. The amount of over shoot should not be more t

Assignment, zero, one, two three address instructions

zero, one, two three address instructions

What is rational robot, Rational Robot is a whole set of components for aut...

Rational Robot is a whole set of components for automating the testing of Microsoft Windows client/server and Internet applications. The major component of Robot lets you start

Explain the working of a hybrid in telephone networks, How does a hybrid in...

How does a hybrid in telephone networks work ? The circuit operation is as follows: The input signal is coupled to the B and F windings similarly. By the C winding, the i

What is organizational structure, What is Organizational Structure? A b...

What is Organizational Structure? A business organization may be structured in many dissimilar ways, depending upon the environment within which it handles.  There is always

What is collective message passing, Q. What is Collective Message Passing? ...

Q. What is Collective Message Passing? In collective message passing all the processes of a group take part in communication. MPI offers a number of functions to apply the coll

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