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

Explain about the microsoft and the netscape, Explain about the Microsoft a...

Explain about the Microsoft and the Netscape With the increasing competition between certain vendors especially the Microsoft and the Netscape, there have been a number of chan

Register data type as sequential element, Reg data type as Sequential eleme...

Reg data type as Sequential element module reg_seq_example( clk, reset, d, q); input clk, reset, d; output q; reg q; wire clk, reset, d; always @ (posedge clk or

What is enctype, ENCTYPE="application/x-www-form-urlencoded" and in its pl...

ENCTYPE="application/x-www-form-urlencoded" and in its place use ENCTYPE="text/plain". The subsequent illustration displays a general form which includes some of the commo

Hazards of pipeline - computer architecture, Hazards of pipeline - computer...

Hazards of pipeline - computer architecture: Hazards : When a programmer (or compiler) writes assembly program code, they make the supposition that each instruction is execut

Explain characteristics of prototyping, Question: (a) List five main c...

Question: (a) List five main characteristics of ‘Prototyping'. (b) Describe briefly why ‘Prototyping' is essential to Rapid Application Development. (c) Describe the 2 t

What is microfilm, What is microfilm? This is a photographic reproducti...

What is microfilm? This is a photographic reproduction of a document greatly decreased in size from the original on fine grain, high resolution film. Microfilm needs a reader f

Risks by financial service provider perspective, What are the risks by fina...

What are the risks by financial service provider's perspective in Electronic Payment Systems? Through the financial service provider's perspective: • Stolen service or c

Computer Graphics, Distinguish between uniform scaling differential scaling...

Distinguish between uniform scaling differential scaling

Write short note on associated vs. common channel signaling, Write short no...

Write short note on Associated vs. Common channel signaling. Associated vs Common channel signalling: The out band signalling suffers from the very restricted bandwidth.

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