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 feram?, Ferroelectric RAM is a random-access memory same in constr...

Ferroelectric RAM is a random-access memory same in construction to DRAM but uses a ferroelectric layer rather of a dielectric layer to achieve non-volatility. FeRAM is one of a gr

Determine about the microprocessor, Determine about the microprocessor ...

Determine about the microprocessor A microprocessor contains at the least CPU which was the case in 1970s and early 1980s. Today they include cache memories, bus interfaces, an

Shared memory and distributed memory, Shared Memory Refers to the memor...

Shared Memory Refers to the memory part of a computer system in which the memory can processed directly by any of the processors in the system. Distributed Memory Refer

Number conversion, (a) Convert the following number to single precision IEE...

(a) Convert the following number to single precision IEEE 754 based on the procedure described in class and in the notes. Express the result in hexadecimal. Show all your work.

What do you understand by client-server architecture, Question: (a) (i...

Question: (a) (i) Explain what do you understand by Client/server architecture? (ii) List and briefly describe 3 types of Client/server architecture. (b) The most impo

What is public, * Public, protected and private are 3 access specifier in C...

* Public, protected and private are 3 access specifier in C++. * Public data members and member functions are accessible outside the class. * Protected data members and memb

Device drivers in unix, Device Drivers in UNIX, MS-DOS and Windows System ...

Device Drivers in UNIX, MS-DOS and Windows System Though device drivers are in effect add-on modules they are however considered to be part of system because they are closely i

What are the roll and page areas, What are the roll and page areas? Ro...

What are the roll and page areas? Roll and page areas are SAP R/3 buffers used to kept user contexts (process requests).  The SAP dispatcher assigns procedure requests to work

Explain register addressing mode, Q. Explain Register Addressing Mode? ...

Q. Explain Register Addressing Mode? Operand can be a 16-bit register: Addressing Mode Description Example AX, BX, CX, DX, SI,

Differentiate between intranet and internet, Differentiate between intranet...

Differentiate between intranet and internet Some comparisons between intranet and internet include: -  INTERNET is INTERnational NETwork -  An INTRANET is INTernal Restri

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