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Main article: Clock ___domain crossing Tags: Reverted Visual edit Mobile edit Mobile web edit |
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{{Short description|Ordering of binary values, used for positioning and error correction}}
{{Use dmy dates|date=May 2019|cs1-dates=y}}
{{Gray code by bit width}}
The '''reflected binary code''' ('''RBC'''), also known as '''reflected binary''' ('''RB''') or '''Gray code''' after [[Frank Gray (researcher)|Frank Gray]], is an ordering of the [[binary numeral system]] such that two successive values differ in only one [[bit]] (binary digit).
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=== Communication between clock domains ===
{{Main article|Clock ___domain crossing}}
Digital logic designers use Gray codes extensively for passing multi-bit count information between synchronous logic that operates at different clock frequencies. The logic is considered operating in different "clock domains". It is fundamental to the design of large chips that operate with many different clocking frequencies.
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