Usage constraints
This register is read-only.
Configurations
Available in all V2M-Juno r2 motherboard configurations.
The following figure shows the bit assignments.
31
0
Reserved
24
SYS_POW_SYS
23
Figure 4-28 SYS_POW_SYS Register bit assignments
The following table shows the bit assignments.
Table 4-32 SYS_POW_SYS Register bit assignments
Bits
Name
Function
[31:24] -
Reserved. If you read this register, you must ignore these bits.
[23:0]
SYS_POW_SYS 24-bit representation of the instantaneous power consumption of the Juno r2 SoC outside the clusters:
•
The value of these bits represents [SYS_I_SYS(I) × SYS_V_SYS(V)]/1234803 watts.
•
Measured power consumption=[SYS_POW_SYS]/1234803 watts.
•
The
CB_nRST
reset signal resets the register to zero. The register then updates every 100µs after the
reset.
Related concepts
4.5.1 APB energy register summary
4.5.11
SYS_POW_A72 Register
The SYS_POW_A72 Register characteristics are:
Purpose
Contains a 24-bit representation of the instantaneous power consumption of the Cortex-A72
cluster.
Usage constraints
This register is read-only. You must use one of the cores in the Cortex-A53 cluster to read this
register.
Configurations
Available in all V2M-Juno r2 motherboard configurations.
The following figure shows the bit assignments.
31
0
Reserved
24
SYS_POW_A72
23
Figure 4-29 SYS_POW_A72 Register bit assignments
The following table shows the bit assignments.
4 Programmers Model
4.5 APB energy meter registers
ARM 100114_0200_03_en
Copyright © 2015–2017 ARM Limited or its affiliates. All rights reserved.
4-114
Non-Confidential