发明申请
- 专利标题: Method for design validation using retiming
- 专利标题(中): 使用重新定时的设计验证方法
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申请号: US11053915申请日: 2005-02-10
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公开(公告)号: US20050149301A1公开(公告)日: 2005-07-07
- 发明人: Aarti Gupta , Pranav Ashar , Sharad Malik
- 申请人: Aarti Gupta , Pranav Ashar , Sharad Malik
- 专利权人: NEC CORPORATION
- 当前专利权人: NEC CORPORATION
- 主分类号: G06F17/10
- IPC分类号: G06F17/10 ; G06F17/50
摘要:
A method for derivation and abstraction of test models for validation of industrial designs using guided simulation is described. The method employs automatic abstractions for the test model which reduce its complexity while preserving the class of errors that can be detected by a transition tour. A method for design validation comprising generating a state-based test model of the design, abstracting said test model by retiming and latch removal; and applying validation technique on the abstracted test model. First, the number of internal (non-peripheral) latches in a design is minimized via retiming using a method of Maximal Peripheral Retiming (MPR). According to the MPR method, internal latches are retimed to the periphery of the circuit. Subsequently, all latches that can be retimed to the periphery are automatically abstracted in the test model. The validation technique may comprise of model checking, invariant checking or guided simulation using test sequences generated from the abstracted test model.
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