Systems and methods manage power in an integrated circuit using power islands.
The integrated circuit includes a plurality of power islands where power consumption
is independently controlled within each of the power islands. A power manager determines
a target power level for one of the power islands. The power manager then determines
an action to change a consumption power level of the one of the power islands to
the target power level. The power manager performs the action to change the consumption
power level of the one of the power islands to the target power level.