Integrated circuit with autonomous power management

An autonomous power managing system for an integrated circuit, said integrated circuit comprising at least one functional block and a system clock having a clock signal driving said functional block, said clock signal having a normal operation clock rate on which said functional block normally operates, said power managing system comprising:

• power management circuitry distributed in said integrated circuit for locally managing power consumption of said functional block, wherein said power management circuitry is configured to monitor at least one signal in said integrated circuit for detecting a predetermined condition associated with said at least one signal, and, in response to said predetermined condition, to adjust said clock signal to the functional block to a lower clock rate, and, in response to another predetermined condition associated with said at least one signal, to restore the normal operational clock rate to said clock signal to said functional block.

An autonomous power managing system for managing power consumed by a functional block in an integrated circuit, said functional block having an interface for communicating with outside of said functional block, said power managing system comprising:

• a reconfigurable wrapper coupled to said interface of said functional block, wherein said reconfigurable wrapper comprises power management circuitry configured to monitor at least one signal at said interface for detecting a predetermined condition associated with said at least one signal, and, in response to said predetermined condition, to set said functional block to a power saving mode, and, in response to another predetermined condition associated with said at least one signal, to set said functional block to a normal operational mode.