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Hardware
18
SPRUII5A – December 2017 – Revised November 2018
Copyright © 2017–2018, Texas Instruments Incorporated
DRA77xP/DRA76xP-ACD CPU EVM Board
Table 10. Power Monitor Mapping (continued)
I2C BUS A
I2C Addr
Power Net
Shunt/Resistor
Description
0x4D
VDA_PHY2_1V8
10m-
Ω
CPU PHY Power Rail (HDMI,
SATA, USB2)
0x4E
VDA_PHY1_1V8
10m-
Ω
CPU PHY Power Rail (CSI2,
PCIe)
I2C BUS B
0x40
EVM_12V
10m-
Ω
Total System 12v power rail
0x41
EVM_5V0
10m-
Ω
Total System 5v0 power rail
0x42
VSYS_3V3
10m-
Ω
Total System 3v3 power rail
0x43
VIO_3V3
10m-
Ω
EVM 3v3 Peripheral Rail
0x44
VPIN_B01_3V3
20m-
Ω
LP87565 SMPS Input Power
(MPU)
0x45
VPIN_B23_3V3
20m-
Ω
LP87565 SMPS Input Power
(GPU)
0x46
VPIN_S12_3V3
20m-
Ω
TPS917 SMPS Input Power
(DSPEVE)
0x47
VPIN_S3_3V3
20m-
Ω
TPS917 SMPS Input Power
(CORE)
0x48
VPIN_S4_3V3
20m-
Ω
TPS917 SMPS Input Power (IVA)
0x49
VPIN_S5_3V3
20m-
Ω
TPS917 SMPS Input Power
(1V8)
0x4A
VPIN_LDO_3V3
20m-
Ω
TPS917 LDO Input Power (PLL,
PHY1/2)
0x4B
VPIN_LDO_5V0
20m-
Ω
TPS917 LDO Input Power
(USBPHY)
3.21 I2C Peripheral Map
shows the list of I2C interface available on the EVM with a list of devices connected to each I2C
interface and its corresponding device address.
Table 11. I2C Device Address Chart
CPU Board
Part No
I2C1
I2C3
I2C4
I2C5
Device Addr (7b)
FPD-Link Xmit
DS90UB921-Q1
X
0x0C
Audio Codec
AIC3016
X
0x19
FPD-Link Xmit
(High Res)
DISABLED
0x1A
GPIO Expander
#1
PCF8575
X
0x20
GPIO Expander
#2
PCF8575
X
0x21
GPIO Expander
#3
PCF8575
X
0x26
Temperature
Sensor
TMP102
X
0x48
EEPROM
24WC256
X
0x50
PMIC
TPS917
X
0x58-5B, 0x12
LP87565
X
0x60
FPD-Link Clock
CDC813-Q1
X
0x65
MLB Connector
Connector
X
NA
COM8 Connector
Connector
X
NA
LCD Interface
Connector
X
NA