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

Define the heat transfer processes, Heat Transfer Coursework An interna...

Heat Transfer Coursework An internal combustion engine of a passenger car is operating at steady state conditions e.g. constant speed (r.p.m.) and load (torque), so the engine

What is double data rate sdram, What is double data rate SDRAM?  Double...

What is double data rate SDRAM?  Double data rates SDRAM are those which can transfer data on both edges of the clock and their bandwidth is fundamentally doubled for long burs

What is focussed ion beam fix, What is Focussed Ion Beam Fix? A FIB Fix...

What is Focussed Ion Beam Fix? A FIB Fix (Focussed Ion Beam) Fix is simply performed onto a terminated chip. FIB is a somewhat exotic process where a particle beam is capable t

Units of artificial neural networks, Units of artificial neural networks: ...

Units of artificial neural networks: However the input units simply output the value that was input to them from the example to be propagated. So every other unit in a network

Write a program for comparing two strings, Q. Write a program for comparing...

Q. Write a program for comparing two strings? Let's write a program for comparing two strings. Determine the following piece of code that has been written in C to compare two s

State the datatypes of verilog, State the datatypes of Verilog Verilog....

State the datatypes of Verilog Verilog. Compared to VHDL, Verilog data types are very simple, easy to use and very much geared towards modeling hardware structure as opposed to

Explain the importance of computer architecture, Explain the importance of ...

Explain the importance of computer architecture Studying the architecture implies working on machine language programs. However, this isn't practical when we design a computer

Basic need of random access memory, Q. Basic need of Random Access Memory? ...

Q. Basic need of Random Access Memory? Main memory is Random access memory. It is generally organised as words of fixed length. Length of a word is termed as word length. Every

What are the different layers of tcp/ip protocol stack, What are the differ...

What are the different layers of TCP/IP protocol stack? Layers in the TCP/IP protocol architecture are:- o  Application Layer o   Host-to-Host Transport Layer,  o  Net

Explain the meaning of bind socket primitive, Explain the meaning of BIND s...

Explain the meaning of BIND socket primitive The bind Primitiv: While created, a socket has neither a remote address nor a local address. A server utilizes the bind proce

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