Patent ID: 6968467

Claim:
A power management system for an integrated circuit, the system comprising: a signal line; a management data generating unit connected to the signal line; and a plurality of management data using units each connected to the signal line, wherein the management data generating unit outputs, to the signal line, power management data indicative of a state of at least a part of the power management system, wherein each of the management data using units reads the power management data for common use from the signal line and controls power consumed by the management data using unit itself utilizing the power management data, wherein each of the management data using units includes: a slave block operating as a slave; and a power management unit corresponding to the slave block, the power management unit reading the power management data from the signal line, generating a control signal for performing power control over the corresponding slave block based on the power management data, and outputting the control signal, wherein the slave block controls power consumed by the slave block in accordance with the control signal outputted from the corresponding power management unit, wherein each of the power management units generates the control signal based on the power management data for common use.