| 摘要 |
A system and method for determining circuit functionality under varying external operating conditions. One embodiment provides a circuit for a given input signal. Internal signals are generated at internal nodes for the given input signal and the next set of external operating conditions. The internal signals are compared with internal reference signals to determine whether the integrated circuit is functional under the next set of external operating conditions. If the circuit is found functional under the next set of external operating conditions, then the internal reference signals are set equal to the internal signals, the initial set of external operating conditions are set equal to the next set of external operating conditions, and the above described method is repeated.
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