One-hot code detection method and one-hot code detector

Abstract

The invention provides a one-hot code detection method and a one-hot code detector. The method comprises the following steps: connecting a plurality of smallest unit cascades into the one-hot code detector of which an input bit is a target bit Nx, wherein Nx is an integer more than 2; detecting a one-hot code of which the input bit is the Nx through the one-hot code detector, wherein both a smallest unit and the one-hot code detector comprise result output ends and auxiliary output ends, the result output ends are used for providing whether the input ends are detection results of the one-hot code or not, and the auxiliary output ends are used for providing auxiliary information for one-hot code detection in the cascade connection. The one-hot code detector with any bit has excellent expandability and can be conveniently constructed through the smallest unit. In addition, when the detection of a one-hot code with a larger bit is realized, the code is enabled to be clear in structure, brief in contents and better in repeatability, so that the detection work of the one-hot code is optimized, and the application of the one-hot code is more convenient.

Description

technical field [0001] The invention relates to the field of electronic circuit design, in particular to a one-hot code detection method and a one-hot code detector. Background technique [0002] One-hot code, the English name is one-hot code, which is a coding method in which one and only one bit is 1 and all others are 0 in multi-bit coding. Compared with other encodings, the biggest advantage of one-hot encoding is that only one bit needs to be compared when comparing states, which simplifies the decoding logic to a certain extent. [0003] The one-hot code can be used to control the operation of the state machine. For example, the system has multiple states, and only one state is in operation at a time. Therefore, the operation of the state machine can be controlled by inputting the one-hot code. When the input one-hot code When the different bits in the code are 1, the corresponding control states are in operation. [0004] In order to ensure that the parallel data in...

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Problems solved by technology

[0005] The present invention provides a one-hot code detection method and a one-hot code detector, which are used to solve the problem of unclear code structure, lengthy code and low repeatability in the prior art due to the need to describe all logical expressions at one time. bad question

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