Patent ID: 9007112
Filing Date: 2015-04-14
Classification: H03K

Abstract:
1. A device including an State Retention Power Gating (SRPG) cell, the SRPG cell comprising: at least one retention component; and at least one non-retention component, wherein the SRPG cell is operable in at least a run state, a first retention state and a second retention state, in the run state, the at least one retention component and the at least one non-retention component receive a supply voltage, in the first retention state, the at least one retention component receives essentially a same supply voltage as in the run state, and the at least one non-retention component is powered down, and in the second retention state, the at least one retention component receives a lower supply voltage than in the run state, and the at least one non-retention component is powered down, wherein a transition between the run state and the first retention state, or between the first retention state and the second retention state is based on a power management policy, the power management policy comprising: