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

Add the equation by using 648 and 487 in bcd code, Add 648 and 487 in BCD c...

Add 648 and 487 in BCD code. Ans. In BCD Code, addition of 648 and 487: 6 4 8  =  0 1 1 0   0 1 0 0      1 0 0 0 4 8 7  =  0 1 0 0   1 0 0 0      0 1 1 1 ---------------------

Decimal equivalent of hex number 1A53, What is the decimal equivalent of he...

What is the decimal equivalent of hex number 1A53 ? Ans. 6739 is the decimal equivalent of Hex Number 1A53. From Hex Number to Decimal Number conversion is shown below: 1

What is a multiple line field, What is a multiple line field? A multipl...

What is a multiple line field? A multiple line field is a special part of field which allows the user to enter multiple lines of data into it.

What is requisitepro, Rational RequisitePro is a needed management tool tha...

Rational RequisitePro is a needed management tool that helps project teams control the development process. RequisitePro organizes your requirements by linking Microsoft Word to a

K-nearest neighbor for text classification, Assignment 2: K-nearest neighbo...

Assignment 2: K-nearest neighbor for text classification. The goal of text classification is to identify the topic for a piece of text (news article, web-blog, etc.). Text clas

Abap/4 module can "branch to " or "call" the next screen, The commands thro...

The commands through Which an ABAP/4 Module can "branch to " or "call" the next screen are Set screen Call screen , Leave screen, Leave to screen

Limitation identified in amdahls law, Q. Limitation identified in Amdahls l...

Q. Limitation identified in Amdahls law? There is one main limitation identified in Amdahl's law. As said by Amdahl's law workload or problem size is forever fixed as well as n

Find the complement of following functions, Q. Find the complement of follo...

Q. Find the complement of following functions and reduce to minimum literals 1. (A+C+D) (A+C+D') (A+C'+D)(A+D') 2. ABC(ABC' + AB'C + A'BC) 3. AB + AB' + A'C +A'C'

Initial considerations in problem solving, Initial considerations in proble...

Initial considerations in problem solving: Three initial considerations in problem solving for easiest(as described in Russell and Norvig):  Initial State  First

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