Usb communication - computer architecture, Computer Engineering

Assignment Help:

Data packets:

USB communication takes the form of packets. Originally, all packets are sent from the host, using the root hub and possibly more hubs, to components. Some of those packets direct a device to send some packets in reply.

After the sync field discussed above, all packets are made of 8-bit bytes, transmitted least-significant bit first. First byte is a packet identifier (PID) byte. The PID is in fact 4 bits; the byte consists of the 4-bit PID followed by its bitwise complement. It redundancy helps detect errors. (Note that a PID byte contains at most 4 consecutive 1 bits, and consequently will never require bit-stuffing, even when combined with the last 1 bit in the sync byte. though, trailing 1 bits in the PID may need bit-stuffing within the first few bits of the payload.)

1173_USB communication.png

 


Related Discussions:- Usb communication - computer architecture

Estimate the circuit switched network, a) Total available bandwidth = 1 Mbp...

a) Total available bandwidth = 1 Mbps = 1000 Kbps Each user requires send data at the rate of = 500 kbps As it is circuit switched network we have to dedicate the bandwidth So the

Development of information system, Development of information system must b...

Development of information system must be considered as capital investment: The developer of an information system must think about different solutions of a particular problem and

Differentiate between rom test and the ram test, Probelm : a) What is t...

Probelm : a) What is the purpose of "Jumps" in the 8051 Microcontroller? Describe three types of "Jumps". b) What is the purpose of a "call"? c) Differentiate between ROM

Explain process control block, Explain Process Control Block Process Co...

Explain Process Control Block Process Control Block (PCB): Information related with every process is stored in Process control Block. a) Process state b) Program counter c

Implementation of arithmetic circuits, Implementation of Arithmetic Circuit...

Implementation of Arithmetic Circuits for Arithmetic Micro-operation  An arithmetic circuit can be implemented by a number of full adder circuits or parallel adder circuits. F

Describe the bespoke versus off-the-shelf software, Bespoke versus off-the-...

Bespoke versus off-the-shelf software Generally software packages are bought off-the-shelf. Though, certain applications (generally for industrial companies, commercial busines

Explain about the object identity of object oriented, Explain about the Obj...

Explain about the Object Identity of object oriented analysis Object identity is a feature of an object that differentiates the objects from all other objects in the applicati

Desirable choice for the partitioning element in quick sort, A desirable ch...

A desirable choice for the partitioning element in quick sort is First element of the list.

Register-to-register architecture, Register-to-Register Architecture : In t...

Register-to-Register Architecture : In this organization, results and operands are accessed not directly from the main memory by the scalar or vector registers. The vectors which a

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