What do you mean by daisy chain, Computer Engineering

Assignment Help:

Q. What do you mean by Daisy chain?

This scheme provides a hardware poll. With this scheme, an interrupt acknowledge line is chain by different interrupt devices. All I/O interfaces share a common interrupt request line. When processor senses an interrupt it sends out an interrupt acknowledgement. This signal passes via all I/O devices till it gets to requesting device. First device that has made interrupt request so senses signal and responds by putting in a word that is generally an address of interrupt servicing program or a unique identifier on data lines. This word is also called as interrupt vector. This address or identifier in turn is used for selecting an appropriate interrupt-servicing program. Daisy chaining has an in-built priority scheme that is determined by sequence of devices on interrupt acknowledge line.


Related Discussions:- What do you mean by daisy chain

What is blocking probability, What is blocking probability? Blocking ...

What is blocking probability? Blocking Probability: The blocking probability P is described as the probability like all the servers in system are busy. If all the servers ar

Computers and cntrol, Define open and closed loop cotrol systems.Explain di...

Define open and closed loop cotrol systems.Explain difference between time varying and time invariant control system wth suitable example

What is the difference between eprom and eeprom, Question 1: (a) Wha...

Question 1: (a) What is the difference between IT (Information Technology) and ICT(Information Communication Technology) (b) Explain why information systems are so im

Hypothetical reliable data transfer protocol, the c code for hypothetical r...

the c code for hypothetical reliable data transfer protocol

Analysis the pc configuration, 1) Identify the software needs of each PC an...

1) Identify the software needs of each PC and whether or not anything needs to change. a. State the changes that you would make (and why) b. If no "change" needs to be made b

Explain the compiler - computer programming, Explain the Compiler - Compute...

Explain the Compiler - Computer Programming? The Compiler is a program that translates source code into object code. The compiler derives its name from the means it works looki

Computer Graphics , What do you mean by ‘Bresenham’s him Algorithm?

What do you mean by ‘Bresenham’s him Algorithm?

Explain dataflow computing, DATAFLOW COMPUTING A substitute to the Von ...

DATAFLOW COMPUTING A substitute to the Von Neumann model of calculation is dataflow computation model. In the dataflow model, control is tied to flow of data. Order of instruct

What are the steps in a bdc session, What are the steps in a BDC session? ...

What are the steps in a BDC session? The first step in a BDC session is to recognize the screens of the transaction that the program will process.  Next step is to write a pro

Visualization, Visualization Visualization is a general method in contr...

Visualization Visualization is a general method in contract to search based tools.  In this method visual aids are given like pictures to assist the programmer in evaluating th

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