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8B/10B encoding
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8B/10B encoding

8B/10B encoding is an encoding scheme used to encode data and send it over a serial link. The encoded data has the clock embedded in the data, in the sense that there will be enough transitions on the data bus which enables the receiving device to recover the clock from the data.

As the name suggests, 8 bits of data are taken and encoded into a 10-bit entity called a code-group. This is serialized and sent to the receiving device. The encoding is done based on a lookup table. However, there are advanced techniques to encode the data which would use few smaller lookup tables and combine the encoded data from each of the tables.

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