ARM Cortex-A76 Core Technical Reference Manual page 49

The following figure shows the power domains in the DSU, where everything in the same color is part of
the same power domain. The example shows four Cortex-A76 cores. The number of Cortex-A76 cores
can vary, and the number of domains increases based on the number of Cortex-A76 cores present.
This example only shows the power domains that are associated with the Cortex-A76 cores, other power
domains are required for a DSU.
PDCPU[0] domain
Core 0
Adv-SIMD/FP L1
L2
100798_0300_00_en
Figure A4-2 Cortex-A76 core power domain diagram at enyo_core level
Cluster
PDCPU[1] domain
Core 1
Adv-SIMD/FP L1
L2
PDSYS
Figure A4-3 Cortex-A76 power domains at enyo_core level
Copyright © 2016–2018 Arm Limited or its affiliates. All rights
reserved.
Non-Confidential
Core
L1
L2
Asynchronous bridge
CPU domain
Asynchronous bridge
SYS domain
VCPU voltage domain
VSYS voltage domain
PDCPU[2] domain
Core 2
Adv-SIMD/FP L1
L2
A4 Power management
A4.3 Power domains
PDCPU
PDSYS
PDCPU[3] domain
Core 3
Adv-SIMD/FP L1
L2
A4-49