SPRUI30H November 2015 – May 2024 DRA745 , DRA746 , DRA750 , DRA756
A voltage domain is a section of the device supplied by a dedicated voltage source (that is, an internal LDOs or external switch mode power supply [SMPS]). A voltage domain may or may not be controlled by the PRCM module.
The voltage managers in the PRCM module is one type:
Figure 3-11 shows a voltage domain.
Figure 3-11 Generic Voltage DomainBy partitioning the device into independent voltage domains, different operating voltages can be assigned to the different sections of the device (that is, a group of modules or memory banks). The independent voltage control allows voltage scaling of device subsections to ensure that each module or memory bank operates at the optimized operating voltage level based on the application performance requirements. Similarly, when a memory bank is not in use, it can be switched to retention voltage levels to ensure power savings.