SPRUHZ7K August 2015 – April 2024 AM5706 , AM5708 , AM5716 , AM5718 , AM5718-HIREL
The MPU subsystem implements a local PRCM (MPU_PRCM) module to handle the local Cortex-A15 CPU power domain, along with the corresponding L1 cache. The MPU_PRCM module includes one power-management control (PSCON) module to control the power chain for MPU_C0. The PRM_PSCON_COUNT register is used for that control purpose.
In addition to the standard power-management technique supported in the device, the MPU subsystem also employs an SR3-APG (SmartReflex3 automatic power gating) power-management technology to reduce leakage. This technology allows for full logic and memories retention on MPU_C0 and is controlled by the MPU_PRCM. The SR3-APG power-management can be enabled by setting the PRM_PSCON_COUNT[24] HG_EN bit. For more information about how to enable SR3-APG fast-wakeup, see Section 4.3.7.6, SR3-APG Technology Fail-Safe Mode.