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

Adaptive mechanism in Ais, pls give the list of adaptive mechanism in arti...

pls give the list of adaptive mechanism in artificial immune system

State the structure of verilog code you follow, State the structure of Veri...

State the structure of Verilog code you follow? A good template for your Verilog file is shown below. // timescale directive tells the simulator the base units and precision

Pushbutton switches, Use the input capture to control the digital clock.  I...

Use the input capture to control the digital clock.  In this part, there will be two switches to control the clock, one is for starting the clock and one is for stopping the clock.

What is self reference, What is self reference?  The Turing machine tha...

What is self reference?  The Turing machine that ignores its input and prints out a copy of its own description,   we call this as SELF. There is a computable function q: €*€*,

Steps in building the structure chart, Steps in Building the Structure Char...

Steps in Building the Structure Chart 1. Recognize top level modules and decompose them into lower levels 2. Add control connections 3. Add couples 4. Review and revis

What is verification method, The verification method states how Robot compa...

The verification method states how Robot compares the baseline data captured while recording with the data captured during playback.

Explain working of d flip -flop, Q. Explain working of D Flip -Flop? D ...

Q. Explain working of D Flip -Flop? D (data) flip-flop is modification of RS flip-flop. Problem of undefined output in SR flip-flop when both R and S become 1 gets avoided in D

Give the sequence of procedure calls for server and client, Give the sequen...

Give the sequence of procedure calls for both server and client for connect ion-oriented application.   In connection oriented communication the order of Procedure call

Is it possible to decrease clock skew to zero, Is it possible to decrease c...

Is it possible to decrease clock skew to zero? Describe your answer? Even if there are clock layout strategies (H-tree) which can into theory reduce clock skew to zero by havi

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