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Hardware
18
SPRUIB9 – December 2016
Copyright © 2016, Texas Instruments Incorporated
DRA72x EVM CPU Board User's Guide
shows a mapping of the current monitoring system. INA226 are located at each shunt location.
Table 14. Power Monitor Mapping
I2C BUS A
I2C Addr
Power Net
Shunt /
Resistor
Description
0x40
SMPS1_IN
5m-
Ω
TPS65917 SMPS1 power input (MPU)
0x41
SMPS2_IN
10m-
Ω
TPS65917 SMPS1 power input (GPU/DSP)
0x42
SMPS3_IN
10m-
Ω
TPS65917 SMPS1 power input (CORE)
0x43
SMPS4_IN
10m-
Ω
TPS65917 SMPS1 power input (1V8)
0x44
SMPS5_IN
10m-
Ω
TPS65917 SMPS1 power input (DDR)
0x45
J6_VDD_MPU
10m-
Ω
CPU MPU power rail (TPS65917 SMPS1)
0x46
J6_VDD_GPU
10m-
Ω
CPU GPU/DSP/IVA (TPS65917 SMPS2)
0x47
J6_VDD_CORE
10m-
Ω
CPU CORE power rail (TPS65917 SMPS3)
0x48
J6_VDD_1V8
10m-
Ω
CPU 1v8 power rail(s)
0x49
EVM_VDD_1V8
10m-
Ω
EVM 1v8 Peripheral Rail
0x4A
J6_VDD_DDR
10m-
Ω
CPU DDR Power Rail
0x4B
EVM_VDD_DDR
10m-
Ω
DDR Power Rail
I2C BUS B
I2C Addr
Power Net
Shunt /
Resistor
Description
0x40
VDDSHV8
10m-
Ω
CPU IO Rail for SD/MMC
0x41
VDDSHV5
10m-
Ω
CPU IO Rail for RTC
0x42
VDDA_PHY
10m-
Ω
CPU PHY LDO Rail
0x43
VDDA_USB3v3
10m-
Ω
CPU USB PHY LDO Rail
0x44
VDDA_PLL
10m-
Ω
CPU PLL LDO Rail
0x45
EVM_5v0
10m-
Ω
EVM 5v0 Peripheral Rail
0x46
EVM_3v3
10m-
Ω
EVM 3v3 Peripheral Rail
0x47
VCCA_IN
10m-
Ω
Total System power rail
0x48
EVM_12V
10m-
Ω
Total System 12v power rail
0x49
1v8_PHY2
10m-
Ω
CPU PHY LDO Rail