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What is 4B4B data mapping?

Updated: 11/4/2022
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10y ago

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Perhaps you mean 4B5B? That's a way to assign combinations of 5 bits to every combination of 4 bits, in such a way that you avoid transmitting long strings of only zeros or only ones. This avoids synchronization problems.

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Q: What is 4B4B data mapping?
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