Handshake packets - computer architecture, Computer Engineering

Assignment Help:

Handshake packets:

Handshake packets consist of nothing but a PID byte, and are usually sent in response to data packets. The 3 basic types are, NAK, indicating that the data cannot be retain at this time ACK, indicating that data was successfully retain and should be retried, and STALL, indicating that the device has an error and will never be able to successfully transfer data till some corrective action (e.g. device initialization) is performed.

USB 2.0 added 2 extra handshake packets called NYET which indicates that a split transaction is not still complete. A NYET packet is also used to tell the host that the receiver has accepted a data packet, but cannot accept any more for reason to buffers being full. Then the host will send PING packets and will continue along data packets once the components ACK's the PING. The other packet which is added was the ERR handshake to indicate that a split transaction failed. Only handshake packet the USB host may generate is called ACK; if it is not prepared to retain data, it should not instruct a component to send any.

 

 


Related Discussions:- Handshake packets - computer architecture

What is the need of modem in data communication, What is the need of MODEM ...

What is the need of MODEM in data communication? Need of Modem: Modems are utilized to interface computer networks, computers and other terminal equipment for radio channels

Define the karnaugh maps (k maps), Define The Karnaugh Maps (K Maps) Th...

Define The Karnaugh Maps (K Maps) The Karnaugh map (K map) provides the systematic method for simplifying a Boolean expression or a truth table function when used properly the

#titlecompiler design.., c program for converting context free grammar to g...

c program for converting context free grammar to griebach normal form

Evaluate fixed execution time, The statement of Gustafson's law can be desc...

The statement of Gustafson's law can be described with the help of an illustration. Let us take a problem, say P, which has to be solved using a parallel computer. Let Ts be the ti

Megaflops, Speed in scientific computing is measured in megaflops, gigaflop...

Speed in scientific computing is measured in megaflops, gigaflops, teraflops and petaflops. A megaflop is 10 6 floating point arithmetic operations (+, -, *, /) in one second What

Or-introduction rule, Or-Introduction : Thus if we know about one thin...

Or-Introduction : Thus if we know about one thing is true, and also we know that a sentence when there thing is in a disjunction is true. Here if we consider example, like we

Explain handle graphics in matlab, This is the MATLAB graphics system. It c...

This is the MATLAB graphics system. It contains high-level commands for two-dimensional and three-dimensional data visualization, image processing, animation, and presentation grap

Effectiveness - efficiency - safety and utility of site, Based on your unde...

Based on your understanding of Unit 2, compile a set of five usability and/or user experience goals which you think will be useful in evaluating the two sites when gathering the in

Determine the two input of NOR gate if output will be low, The NOR gate out...

The NOR gate output will be low if the two inputs are ? Ans. Output is low if any of the input is high means input may be 01,10 or 11.

Safety argument for good design, So far we have considered the problems of ...

So far we have considered the problems of poor ID in terms of the loss of productivity and efficiency to business. There is another important aspect to consider: the issue of safet

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