Integrated circuit having internal signature

摘要

A multi-chip system in which at least one of the chips includes a register for storing a value indicating a performance parameter. The value is called a device signature. After system assembly, the value can be obtained by a companion chip and used to automatically or semi-automatically fine tune the companion chip to the specific parameters of the at least one chip. A multi-chip system in which at least one of the chips includes a register for storing a value indicating a performance parameter. The value is called a device signature. After system assembly, the value can be obtained by a companion chip and used to automatically or semi-automatically fine tune the companion chip to the specific parameters of the at least one chip.