I2C Map - Nvidia TEGRA DG-04927-001_V01 User Manual

3.2 I2C Map

The I2C interface can be used to connect a touch screen, touch pad and other devices.
There are two options for the Touch devices. I2C versions of these devices (recommended) interface to the Tegra 250, while
PS/2 versions connect to the EC controller.
Table 3. Tegra 200 Series Developer Board I2C Map
Domain Contrlr
VDDIO_VI I2C3 CAM_I2C_SCL/SDA
VDDIO_VI I2C3 CAM_I2C_SCL/SDA
VDDIO_VI I2C3 CAM_I2C_SCL/SDA
VDDIO_UART I2C1 GEN1_I2C_SCL/SDA
VDDIO_UART I2C1 GEN1_I2C_SCL/SDA
VDDIO_UART I2C1 GEN1_I2C_SCL/SDA
VDDIO_UART I2C1 GEN1_I2C_SCL/SDA
VDDIO_LCD I2C2 DDC_SCL/SDA
VDDIO_SYS PWR_I2C PWR_I2C_SCL/SDA
VDDIO_UART I2C1
VDDIO_SYS PWR_I2C
VDDIO_SYS PWR_I2C
VDDIO_SYS PWR_I2C
Figure 5. I2C Diagram
DG-04927-001_v01
Pins Volt. Device
3.3V MEC1308 (I2C Master)
3.3V Touchpad
3.3V Touchscreen
1.8V Camera
1.8V Autofocus DAC
3.3V Option for SMB to Battery Pack
3.3V Option for SMB to Charger
5.0V Mini VGA or HDMI Display
1.8V TI TPS658621 PMU
1.8V WM8903 Audio Codec
1.8V ID EEPROM
1.8V ID EEPROM
1.8V Temperature Sensor
Advance Information – Subject to Change
NVIDIA CONFIDENTIAL
Tegra 200 Series Developer Board User Guide
ID / I2C Addr Location
Tegra 250 Slave addr:
Main Board
0x45
0x28 Remote Location
TBD Remote Location
0x36 Main Board
0x0C Main Board
Pack is Master or Slave
Main Board
Slave addr: 0x0B
0x09 Main Board
0x30, 0x50, 0x52 Main Board
0x34 Main Board
0x1A Main Board
0x50 Main Board
0x51 Remote Location
0x4C Main Board
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