Point-to-point messaging with SSI can be done with SSI / UART . An SSI UART message consists of a 3-byte UART header, an SSI message as the payload and an optional Cyclic redundancy check checksum.
32.
One method that avoids the problem of strings having great similarity ( " Aaaaaaaaaa " and " Aaaaaaaaab " ) is to use a Cyclic redundancy check ( CRC ) of the string to compute a 32-or 64-bit value.
33.
Since most modern link layers protect the carried data with a strong cyclic redundancy check ( CRC ) and will discard damaged frames, making effective use of UDP Lite requires the link layer to be aware of the network layer data being carried.
34.
Unlike most network frames, which place control information in the field, a 32-bit cyclic redundancy check ( CRC ) and two 8-bit fields labeled " UU " and " CPI " that are currently unused.
35.
Packet aggregation is useful in situations where each transmission unit may have significant overhead ( preambles, headers, cyclic redundancy check, etc . ) or where the expected packet size is small compared to the maximum amount of information that can be transmitted.
36.
The checksum algorithms most used in practice, such as Fletcher's checksum, Adler-32, and cyclic redundancy checks ( CRCs ), address these weaknesses by considering not only the value of each word but also its position in the sequence.
37.
In 1999, version 3.0 ( 12 September 1999 ) was released, with a new " fast mode " ( albeit with reduced compression ratio ), compression of raw ( headerless ) PCM audio files, and error detection using a 32-bit cyclic redundancy check.
38.
"' Packetized Elementary Streams "'( " PES " ) are elementary streams packetized into packets of variable lengths, i . e ., divided ES into independent chunks where cyclic redundancy check ( CRC ) checksum was added to each packet for error detection.
39.
On the transmit side, the data link layer generates an incrementing sequence number for each outgoing TLP . It serves as a unique identification tag for each transmitted TLP, and is inserted into the header of the outgoing TLP . A 32-bit cyclic redundancy check code ( known in this context as Link CRC or LCRC ) is also appended to the end of each outgoing TLP.
40.
The BIST name and concept originated with the idea of including a pseudorandom number generator ( PRNG ) and cyclic redundancy check ( CRC ) on the IC . If all the registers that hold state in an IC are on one or more internal scan chains, then the function of the registers and the combinational logic between them will generate a unique CRC signature over a large enough sample of random inputs.
