INTEGRATED CIRCUIT ADAPTIVE VOLTAGE SCALING WITH DE-AGING

An integrated circuit compensates for circuit aging by measuring the aging with an aging sensor and controlling a supply voltage based on the measured aging. The operating environment for the aging sensor can be set to reduce impacts of non-aging effects on the measured aging. For example, the operating environment can use a temperature inversion voltage. An initial aging measurement value which is the difference between an initial aged measurement and an initial unaged measurement can be stored on the integrated circuit. A core power reduction controller can use the measured aging and the stored initial aging measurement value to update a performance-sensor target value and then perform adaptive voltage scaling using the using the updated performance-sensor target value. 种集成电路通过用老化传感器测量老化并基于所测得的老化来控制供电电压以补偿电路老化。针对老化传感器的操作环境可被设置为降低非老化效应对所测得的老化的影响。例如，操作环境可使用温度反相电压。作为初始已老化测量和初始未老化测量之间的差异的初始老化测量值可被存储在集成电路上。核心功率降低控制器可使用所测得的老化及所存储的初始老化测量值来更新性能传感器目标值，并随后使用经更新的性能传感器目标值来执行自适应电压缩放。