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Circuit coding method and identification method of circuit structure

An identification method and circuit technology, applied in the field of circuit coding and identification, can solve problems such as time-consuming, and achieve the effects of shortening identification time, improving efficiency and accuracy, and fast coding

Active Publication Date: 2021-12-10
REALTEK SEMICON CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage of this method is that it is time-consuming to build the architectural hierarchy tree and the recursive method

Method used

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  • Circuit coding method and identification method of circuit structure
  • Circuit coding method and identification method of circuit structure
  • Circuit coding method and identification method of circuit structure

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Embodiment Construction

[0019] The disclosed content of the present invention includes a circuit encoding method and a circuit structure identification method to improve the speed and accuracy of circuit structure identification. The technical terms in the following description refer to the customary terms in this technical field. If some terms are explained or defined in this manual, the explanations of these terms shall be based on the descriptions or definitions in this manual.

[0020] figure 1 It is a flow chart of an embodiment of the identification method of the circuit structure of the present application. The circuit structure identification method in this case is applied to a component connection relationship description file of a circuit, and the component connection relationship description file records the connection relationship of a plurality of transistors in the circuit. The identification method of the circuit structure first encodes the circuit (step S105). In detail, this step e...

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Abstract

The invention discloses a circuit coding method and a circuit structure identification method. The circuit encoding method is applied to a circuit structure identification process of a circuit. The circuit encoding method includes: selecting all the transistors of the circuit as the target transistor one by one; when one terminal of the target transistor is electrically connected (DC Connect) to the voltage source or ground port, adding a value to the terminal value of the terminal a first value; when the terminal of the target transistor is electrically connected to the voltage source and a terminal other than the reference voltage, adding a second value to the terminal value of the terminal; and using a plurality of terminals of the target transistor The set of values ​​serves as a transistor signature of the target transistor.

Description

technical field [0001] The present invention relates to circuit design, in particular to circuit encoding and identification methods. Background technique [0002] Most of today's circuit designs are completed with the assistance of Electronic Design Automation (EDA) and Computer-Aided Design (CAD). When it is desired to identify the structure of a circuit from a description file of a circuit's component connection relationship (such as a circuit netlist (netlist) produced by a simulation program focusing on integrated circuits (Simulation Program with Integrated Circuit Emphasis, hereinafter referred to as SPICE) Usually, the hierarchy tree of the circuit is established according to the component connection relationship description file, and the sub-circuits corresponding to the branches of the hierarchy tree are found by a recursive method, and then the sub-circuits are compared . The disadvantage of this method is that it is time-consuming to build the architectural hie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/367
CPCG06F30/30
Inventor 林筠菁李孟蓉罗幼岚高淑怡刘建男楼禹慷林庆和
Owner REALTEK SEMICON CORP