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

Determine waiting and average waiting time of CPU, CPU burst time indicates...

CPU burst time indicates the time, the process needs the CPU. The following are the set of processes with their respective CPU burst time     (in milliseconds). Process

Explain about physical model, Explain about Physical model The Physical...

Explain about Physical model The Physical model describes concrete software and hardware components of system's context or implementation.

Illustrate memory read operation, Q. Illustrate Memory Read operation? ...

Q. Illustrate Memory Read operation? Memory unit receives the address from a register known as the memory address register designated by MAR. Data is transferred to another re

Backpropagation, Backpropagation: However Backpropagation can be seen ...

Backpropagation: However Backpropagation can be seen as utilising searching a space of network configurations as weights in order to find a configuration with the least error,

Why does ipv6 use separate extension headers, Why does IPV6 use separate ex...

Why does IPV6 use separate extension headers? Explain. The extension headers in Ipv6 are utilized for economy and extensibility. Partitioning the datagram functionality in sepa

What is system programming, what is system programming? System programm...

what is system programming? System programming is the activity of implementing and designing SPs. System programs that are the standard component of the s/w of most computer

C program, Write a program to find the area under the curve y = f(x) betwee...

Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can b

What is the advantage of buffering, What is the advantage of buffering? Is ...

What is the advantage of buffering? Is buffering always effective? Justify your answer with help of an example. I/O buffer: One type of input-output requirement arises from d

Which important terminal required between dte and pstn, An important termin...

An important terminal that is required between DTE and PSTN is (A)  Server                                      (B) MODEM (C)  Relay

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