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

Positive logic nand gate is equivalent to negative logic nor, Show that a p...

Show that a positive logic NAND gate is equivalent to negative logic NOR gate. Ans:  Positive logic denotes True or 1 with a high voltage and False or 0 with a low volt

Explain naming convention in arrays, Explanation Arrays in many programm...

Explanation Arrays in many programming-languages generally show a fixed list of values (e.g. a list of lastnames). Though within SQABasic the size for an array can either be fix

What is the sequence in which resources may be utilized, What is the sequen...

What is the sequence in which resources may be utilized?  Under normal mode of operation, a process might be utilize a resource in the following sequence:  • Request: If the

What is a binary tree, What is a binary tree? A binary tree 'T' is desc...

What is a binary tree? A binary tree 'T' is described as A finite set of elements, known as nodes, such that: either (i) or (ii) happens: (i) T is empty (known as the 'nu

Explain progressive control, Explain the term Progressive Control. Pro...

Explain the term Progressive Control. Progressive Control: Step by step system is an illustration of progressive control. The connection is established in stages, in respo

Defined for a push button fields in the screen attributes, What is to be de...

What is to be defined for a push button fields in the screen attributes? A function code has to be described in the screen attributes for the push buttons in a screen.

What is computer to computer communication, Computer to computer communicat...

Computer to computer communication is: (A)  Simplex                                   (B)  Duplex (C)  Half Duplex                             (D)  Both Duplex and Half D

Unix, A friend has promised to log in at a particular time. However, he nee...

A friend has promised to log in at a particular time. However, he needs to be contacted as soon as he logs in. The shell script checks after every minute whether he has logged in o

Control of program, Example:                         CMP    AX,BX    ;...

Example:                         CMP    AX,BX    ; compare instruction: sets flags JE        THERE    ; if equal then skip the ADD instruction  ADD  AX, 02    ; add 02

Voice identifier - biometric computer security systems, Voice Identifier - ...

Voice Identifier - Biometric Computer Security Systems Besides fingerprint, another popular security technology is voice identifier. According to VSS organization (2007), voic

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