Patent ID: 7996693

Claim:
A system, comprising, comprising: an integrated circuit including a non-volatile storage for storing an indication of a set of environmental conditions for operation of the integrated circuit that were predetermined during manufacturing test of the integrated circuit; a control unit that, during initialization of the system, first retrieves the indication of the set of environmental conditions from the non-volatile storage within the integrated circuit, second retrieves the set of environmental conditions from either the non-volatile storage within the integrated circuit or another storage within the system in accordance with the indication of the set of environmental conditions, sets operating parameters within the system and external to the integrated circuit, that impose environmental conditions that conform to operating conditions for the integrated circuit that meet requirements specified by the set of environmental conditions, wherein the control unit further determines whether or not the indication of the set of environmental conditions has been previously retrieved, and if the indication of the set of environmental conditions has been previously retrieved, performing the setting in conformity with an indication of the operating parameters stored within the system and external to the integrated circuit, and if the indication of the particular set of environmental conditions has not been previously retrieved, provides operating voltage to the integrated circuit sufficient to access the non-volatile storage within the integrated circuit, and performs the first retrieving of the indication of the set of environmental conditions from the non-volatile storage within the integrated circuit, performs the second retrieving of the set of environmental conditions from either the non-volatile storage within the integrated circuit or the another storage within the system in accordance with the indication of the set of environmental conditions retrieved from the integrated circuit, and performs the setting in conformity with the retrieved set of environmental conditions.