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The Cortex®‑R8 processor supports several power domains, including one for each processor, and one for each of the individual processor Cache RAM arrays.
The Cortex‑R8 processor can support the following power domains:
Each power domain has its own clock and reset signal, and its own clock off signal. When a power domain is powered-off, some clamp values might be driven HIGH. See the ARM® Cortex®‑R8 MPCore Processor Configuration and Sign-off Guide for more information.