Corp. Computer Hardware User Manual

Tegra 200 Series Developer Board User Guide
DG-04927-001_v01 Advance Information – Subject to Change 14
NVIDIA CONFIDENTIAL
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 Pins Volt. Device ID / I2C Addr Location
VDDIO_VI I2C3 CAM_I2C_SCL/SDA 3.3V MEC1308 (I2C Master)
Tegra 250 Slave addr:
0x45
Main Board
VDDIO_VI I2C3 CAM_I2C_SCL/SDA 3.3V Touchpad 0x28 Remote Location
VDDIO_VI I2C3 CAM_I2C_SCL/SDA 3.3V Touchscreen TBD Remote Location
VDDIO_UART I2C1 GEN1_I2C_SCL/SDA 1.8V Camera 0x36 Main Board
VDDIO_UART I2C1 GEN1_I2C_SCL/SDA 1.8V Autofocus DAC 0x0C Main Board
VDDIO_UART I2C1 GEN1_I2C_SCL/SDA 3.3V Option for SMB to Battery Pack
Pack is Master or Slave
Slave addr: 0x0B
Main Board
VDDIO_UART I2C1 GEN1_I2C_SCL/SDA 3.3V Option for SMB to Charger 0x09 Main Board
VDDIO_LCD I2C2 DDC_SCL/SDA 5.0V Mini VGA or HDMI Display 0x30, 0x50, 0x52 Main Board
VDDIO_SYS PWR_I2C PWR_I2C_SCL/SDA 1.8V TI TPS658621 PMU 0x34 Main Board
VDDIO_UART I2C1 1.8V WM8903 Audio Codec 0x1A Main Board
VDDIO_SYS PWR_I2C 1.8V ID EEPROM 0x50 Main Board
VDDIO_SYS PWR_I2C 1.8V ID EEPROM 0x51 Remote Location
VDDIO_SYS PWR_I2C 1.8V Temperature Sensor 0x4C Main Board
Figure 5. I2C Diagram