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

Differentiate between synchronous and asynchronous i/o, Differentiate betwe...

Differentiate between synchronous and asynchronous input/output with the help of an example. The input-output operation is asynchronous input/output operation since after the s

Calculus, i want an assignment on application of integraton and my topc of ...

i want an assignment on application of integraton and my topc of assifment is area under the curve includin solved examples

What is switched mode power supply, Q. What is Switched Mode Power Supply? ...

Q. What is Switched Mode Power Supply? SMPS is the unit into which electric supply from the mains is connected to your PC and this supplies DC to internal circuits. It is more

Scanf function, How can the maximum field width for a data item be specifie...

How can the maximum field width for a data item be specified within a scanf function? When the program is executed, three integer quantities will be entered from the standard i

Explain the logic symbols - flip flops, Explain the Logic symbols - Flip Fl...

Explain the Logic symbols - Flip Flops? These flip-flops are as well called Master-Slave flip-flops simply because their internal construction is divided into two sections. Th

Manipulating numbers, Computers manipulate numbers - but decimalnumbers wit...

Computers manipulate numbers - but decimalnumbers with digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 cannot be represented using two states of a digitalcircuit.Instead decimal numbers are co

The concept of program-parallel computing, The Concept of Process Infor...

The Concept of Process Informally, a method is a program in execution, behind the program has been loaded in the main memory. However, a method is more than just a program code

Show the developments that happened in third generation, Q. Show the develo...

Q. Show the developments that happened in third generation? The main developments that happened in third generation can be summarized as below: Application of IC circuit

Find the simplified function f and implement, Q. F'(a,b,c,d) = (a + b + d')...

Q. F'(a,b,c,d) = (a + b + d')(a + c' + d')(a + b' + c') d'(a,b,c,d) = (a + b' + c + d')(a' + c' + d')(a' + b + d) Find the simplified function F and implement it using NOR Ga

#title, what are the applications of microprogramming

what are the applications of microprogramming

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