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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.)
What is big endian and little endian format? The name big endian is used when lower byte addresses are used for the more important of the word. The name little endian is used f
Q. Explain about Interrupt-Processing Sequence? The occurrence of an interrupt fires a numbers of events both in processor hardware and software. Figure below displays a sequen
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It is desirable that operating speed of primary storage of a computer system be as fast as possible since most of the data transfer to and from processing unit is via main memory.
What will exactly the hide statement do? For displaying the details on secondary lists needs that you have previously stored the contents of the selected line from within the
Define Polling. A Polling process is used to recognize the highest priority source by software means. In this process there is one common branch address for all interrupts.
Minimize the logic function Y(A, B, C, D) = ∑m(0,1,2,3,5,7,8,9,11,14). Use Karnaugh map. Draw logic circuit for the simplified function. Ans: In following figure (a) shows the
What is reification and behaviour? Reification is the promotion of something that is not an object into an object. Behavior usually requires this description. It isn't usually
The hybrid models are mostly tailormade models suiting to exact applications. Actually these fall in the category of mixed models. Such type of application-oriented models keep cro
can i get a prepared ppt for this topic to present it in a seminar??
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