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Table 4-37 SYS_ENM_A72 Register bit assignments
Bits
Name
Function
[63:32] SYS_ENM_H_A72 Most significant 32 bits of a 64-bit representation of the accumulated energy consumption of the
Cortex-A72 cluster:
•
The memory address offset of these bits is
0x010C
.
•
Accumulated energy = (SYS_ENM_H_A72:SYS_ENM_L_A72)/6174020000 joules.
•
The
CB_nRST
reset signal resets the register to zero. The register then updates every 100µs after
the reset.
[31:0]
SYS_ENM_L_A72 Least significant 32 bits of a 64-bit representation of the accumulated energy consumption of the
Cortex-A72 cluster:
•
The memory address offset of these bits is
0x0108
.
•
Accumulated energy = (SYS_ENM_H_A72:SYS_ENM_L_A72)/6174020000 joules.
•
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
4.5.16
SYS_ENM_A53 Register
The SYS_ENM_A53 Register characteristics are:
Purpose
Contains a 64-bit representation of the accumulated energy consumption of the Cortex-A53
cluster.
Usage constraints
This register is read-only.
Configurations
Available in all V2M-Juno r2 motherboard configurations.
The following figure shows the bit assignments.
63
0
SYS_ENM_L_A53
SYS_ENM_H_A53
32 31
Figure 4-34 SYS_ENM_A53 Register bit assignments
The following table shows the bit assignments.
4 Programmers Model
4.5 APB energy meter registers
ARM 100114_0200_03_en
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