Abstract: Methods, systems, and apparatus, for reset using a shared reset signal and a retention mechanism. In some implementations, an integrated circuit includes one or more modules configured to be reset in response to a reset signal and an access control module configured to be reset in response to the reset signal. The integrated circuit includes one or more second memory elements that is configured to retain stored data during reset of the access control module. The integrated circuit includes reset control logic configured to cause the integrated circuit to be reset while the state of the access control module is preserved.

Abstract: Methods, systems, and apparatus, for reset using a shared reset signal and a retention mechanism. In some implementations, an integrated circuit includes one or more modules configured to be reset in response to a reset signal and an access control module configured to be reset in response to the reset signal. The integrated circuit includes one or more second memory elements that is configured to retain stored data during reset of the access control module. The integrated circuit includes reset control logic configured to cause the integrated circuit to be reset while the state of the access control module is preserved.

Abstract: Methods, systems, and apparatus, for implementing a save-restore engine in a computing device. One of the apparatus includes a power manager configured to control power provided to a plurality of power domains on the device, wherein each power domain has a respective client device, wherein each respective client device has a respective access control (AC) component that is configured to control which other components on the device can communicate with the respective client device; and a save-restore engine (SRE) configured to save, in an isolated local memory, configuration data for an AC component located in a power domain affected by the power manager initiating a power collapse operation, and wherein the SRE is configured to restore, from the isolated local memory, the configuration data of the AC component when the power manager restores the power to the power domain of the AC component.