2.3.4 Power Supplies

The Cortex-A7 processor, including L1 and L2 caches, is powered with dedicated VDDCPU power rails, while the rest of the core system is powered with VDDCORE.

By separating the power supplies, power consumption can be reduced when the core is not active by powering off the VDDCPU section.

The CPU power supply can be adapted to the requirements with power scaling in case high performance is required. Refer to VDDCPU characteristics in the section "Electrical Characteristics" for more details.