SPRUI30H November 2015 – May 2024 DRA745 , DRA746 , DRA750 , DRA756
To provide a versatile architecture that supports multiple power-management techniques, the power-management framework is built with three levels of resource management: clock, power, and voltage.
These management levels are enforced by defining the managed entities or building blocks of the power-management architecture, called the clock, power, and voltage domains.
A domain is a group of modules or subsections of the device that share a common entity (for example, common clock source, common voltage source, or common power switch). The group forming the domain is managed by a policy manager. For example, a clock for a clock domain is managed by a dedicated clock manager within the power, reset, and clock management (PRCM) module. The clock manager considers the joint clocking constraints of all the modules belonging to that clock domain (and, hence, receiving that clock).
In the following sections, the term <module> is used to represent the device IPs (that is, modules or subsystems), other than the PRCM module, that receive clock, reset, or power signals from the PRCM module.