SPRUIU1C July 2020 – February 2024 DRA821U , DRA821U-Q1
The CTRL_MMR is a module on the device that controls top-level device behavior in various states. It contains registers for configuration, bootstrap signals, I/O pad multiplexing, clock selection, and many others. There are three CTRL_MMR modules in this device - CTRL_MMR0 which resides in VD_CORE, MCU_CTRL_MMR0 in VD_MCU and WKUP_CTRL_MMR0 in the VD_WKUP voltage domain.
There are also two other modules (SEC_MMR0 and MCU_SEC_MMR0) that have registers to control the configuration of the MAIN and MCU domain processors.
The following sections describe all these modules.