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

Explain automated and manual systems, Q. Explain Automated and Manual syste...

Q. Explain Automated and Manual systems? Automated and Manual systems: The system that doesn't need human intervention is known as'Automated system'. In this system whole proce

Mobile computing, Explain the key characteristics of mobile computing appli...

Explain the key characteristics of mobile computing applications

BCD ADDER, create a BCD adder combinational ckt. that adds 2 digit BCD inpu...

create a BCD adder combinational ckt. that adds 2 digit BCD inputs

Show matrix multiplication problem, Q. Show Matrix Multiplication Problem? ...

Q. Show Matrix Multiplication Problem? Let there be 2 matrices M1 and M2 of sizes a x b and b x c correspondingly. If we multiply M1 and M2 product matrix O will be of size a x

Clarify the operation of iret instruction, Clarify the operation of IRET in...

Clarify the operation of IRET instruction.  What memory locations comprise the vector for an INT 34 instruction? Interrupt return (IRET) instruction is used only with hardware

Define seek time and latency time, Define seek time and latency time. ...

Define seek time and latency time.  The time taken by the head to move to the appropriate cylinder or track is known as seek time. Once the head is at right track, it must wai

Design issues of multi-threaded processors, Q. Design issues of Multi-threa...

Q. Design issues of Multi-threaded processors? To accomplish the maximum processor utilization in a multithreaded architecture, the subsequent design issues should be addressed

Do you provide storage and destruction services, Do you provide storage and...

Do you provide storage and destruction services? We will assess your storage and destruction needs as part of our evaluation process. Our destruction services can be performed

Illustration of an instruction cycle, Q. Illustration of an instruction cyc...

Q. Illustration of an instruction cycle? Instruction cycle displayed in given figure comprises subsequent stages: First address of the subsequent instruction is calculat

Menu driven program with following menu, Q.  Develop a Menu driven program ...

Q.  Develop a Menu driven program with following menu: 1.  Gray code 2.  BCD 3.  Excess-3 code 4.  Exit I/P must be a valid Binary number. Fractional numbers are all

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