Abstract: A system and method is disclosed for providing multi-point calibration of an adaptive voltage scaling (AVS) system. A plurality of Reference Calibration Codes (RCCs) within a multi-point calibration table is provided. Each code is associated with one of the clock frequencies of the adaptive voltage scaling (AVS) system. The present invention provides multi-point calibration by calibrating a Reference Calibration Code (RCC) for each operating point (clock frequency) of the adaptive voltage scaling (AVS) system.

Abstract: A system and method is disclosed for providing a plurality of hardware performance monitors for adaptive voltage scaling in an integrated circuit system that comprises a plurality of clock domains. Each hardware performance monitor is associated with one of the plurality of clock domains and provides a signal that measures a performance of its respective clock domain temperature, process corner and supply voltage. The difference between the measured performance and a nominal expected performance for each hardware performance monitor is determined. The largest of the plurality of difference signals is selected and used in an advanced power controller to provide adaptive voltage scaling for the integrated circuit system.

Abstract: A system and method is disclosed for rapidly increasing a rising slew rate of an adjustable power supply signal in an adaptive voltage scaling system. When a central processing unit of an adaptive voltage scaling system requests an increase in a performance level, a closed loop control mode of the adaptive voltage scaling system is disabled. Then a value of voltage that corresponds to the requested increased performance level is provided as a voltage change command to an adaptive voltage scaling regulator. The adaptive voltage scaling system is then operated at a maximum slew rate that can be achieved by the adaptive voltage scaling regulator. The closed loop mode is enabled after the adjustable power supply voltage reaches the requested voltage value.

Abstract: A system and method is disclosed for providing multi-point calibration of an adaptive voltage scaling (AVS) system. A plurality of Reference Calibration Codes (RCCs) within a multi-point calibration table is provided. Each code is associated with one of the clock frequencies of the adaptive voltage scaling (AVS) system. The present invention provides multi-point calibration by calibrating a Reference Calibration Code (RCC) for each operating point (clock frequency) of the adaptive voltage scaling (AVS) system.

Abstract: A method for minimizing bandwidth consumption for communicating over an interface is provided that includes defining a one-frame event that comprises a specified operation type and defining an n-frame event that comprises the specified operation type. A single frame is assembled for the one-frame event. The single frame comprises an event type identifier that is operable to identify the single frame as corresponding to the one-frame event. The single frame is sent over the interface.

Abstract: A system and method is disclosed for providing an improved voltage monitor that is capable of determining that a value of an adjustable supply voltage is suitable for a requested performance level in an adaptive voltage scaling system. An integrator circuit of the voltage monitor integrates a slack time error signal from a hardware performance monitor. Control circuitry evaluates a suitability of the integrated slack time error signal for the requested performance level for a number of voltage evaluation time periods. The adjustable supply voltage is deemed to be stable when the integrated slack time error signal is within a predetermined range of limits for at least two voltage evaluation time periods.