4.7.19
SYS_I_DDR1 Register
SYS_I_DDR1 Register characteristics are:
Purpose
Contains a 12
‑
bit representation of the instantaneous current consumption of DDR 1.
Usage constraints
This register is read
‑
only.
Configurations
Available in all N1 board configurations.
Memory offset and full register reset value
See
4.7.1 APB energy meter registers summary
Note
The value measured by this register is provisional and subject to characterization on the RevB boards.
The following table shows the bit assignments.
Table 4-155 SYS_I_DDR1 Register bit assignments
Bits
Name
Type
Function
[31:12] -
-
Reserved.
[11:0]
SYS_I_DDR1
RO
12
‑
bit representation of the instantaneous current consumption of
DDR 1:
•
Full scale measurement, 4096, represents 10A. Full scale is
0xFFF
.
•
Measured current = (SYS_I_DDR 1+1)/381 amperes.
•
The
CB_nRST
reset signal resets the register to zero. The
register then updates every 100µs after the reset.
4.7.20
SYS_V_DDR0 Register
The SYS_V_DDR0 Register characteristics are:
Purpose
Contains a 12
‑
bit representation of the instantaneous supply voltage of DDR 0.
Usage constraints
This register is read
‑
only.
Configurations
Available in all N1 board configurations.
Memory offset and full register reset value
See
4.7.1 APB energy meter registers summary
The following table shows the bit assignments.
4 Programmers model
4.7 APB energy meter registers
101489_0000_02_en
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