SPRUJ85A April   2024  – August 2024

PRODUCTION DATA  

  1.   1
  2.   Description
  3. 1Key Features
  4. 2LaunchPad Module Overview
    1. 3.1 Introduction
    2. 3.2 Preface: Read This First
      1. 3.2.1 If You Need Assistance
      2. 3.2.2 Important Usage Notes
    3. 3.3 Kit Contents
    4. 3.4 Device Information
      1. 3.4.1 System Architecture Overview
      2. 3.4.2 Security
      3. 3.4.3 Compliance
      4. 3.4.4 BoosterPacks
      5. 3.4.5 Component Identification
  5. 3Hardware Description
    1. 4.1  Board Setup
      1. 4.1.1 Power Requirements
        1. 4.1.1.1 Power Input Using USB Type-C Connector
        2. 4.1.1.2 Power Status LEDs
        3. 4.1.1.3 Power Tree
      2. 4.1.2 Push Buttons
      3. 4.1.3 Boot mode Selection
      4. 4.1.4 IO Expander
    2. 4.2  Functional Block Diagram
    3. 4.3  GPIO Mapping
    4. 4.4  Reset
    5. 4.5  Clock
    6. 4.6  Memory Interfaces
      1. 4.6.1 OSPI
      2. 4.6.2 MMC
      3. 4.6.3 eMMC
      4. 4.6.4 Board ID EEPROM
    7. 4.7  Ethernet Interface
      1. 4.7.1 Ethernet PHY #1 - CPSW RGMII/ICSSM
      2. 4.7.2 Ethernet PHY #2 - CPSW RGMII/ICSSM
      3. 4.7.3 LED Indication in RJ45 Connector
    8. 4.8  I2C
    9. 4.9  Industrial Application LEDs
    10. 4.10 SPI
    11. 4.11 UART
    12. 4.12 MCAN
    13. 4.13 FSI
    14. 4.14 JTAG
    15. 4.15 TIVA and Test Automation Header
    16. 4.16 LIN
    17. 4.17 ADC and DAC
    18. 4.18 EQEP and SDFM
    19. 4.19 EPWM
    20. 4.20 BoosterPack Headers
    21. 4.21 Pinmux Mapping
  6. 4Additional Information
    1.     Trademarks
    2. 5.1 Sitara MCU+ Academy
    3. 5.2 Known Board Changes/Issues
      1. 5.2.1 OSPI DQS and LBCLK nets swap
      2. 5.2.2 XDS110 Debugger Bricking Issue
      3. 5.2.3 eMMC CMD and CLK nets swap
  7. 5References
    1. 6.1 Reference Documents
    2. 6.2 Other TI Components Used in This Design
  8. 6Revision History

3.8 I2C

The AM263Px LaunchPad uses two AM263Px SoC inter-integrated circuit (I2C) ports to operate as a controller for various targets. I2C data and clock lines needs to be pulled up to the 3.3V system voltage supply to enable communication.

AM263P I2C Targets Figure 3-18 I2C Targets
Table 3-14 I2C Addressing
TargetI2C InstanceI2C Addres Bit DescriptionDevice AddressingLaunchPad Config.I2C Address
Board ID EEPROMI2C1The first 4 bits of the device address are set to 1010, the next two are set by the A2 and A1 pins, the seventh bit, a16, is the most significant internal address bit0b10110[A2][A1][a16]
A1 is connected to 3.3V supply
A2 is connected to ground		0b10100100x52
LED DriverI2C1The first four bits of the target address are 1100, the following three are determined by A2, A1, and A00b1100[A2][A1][A0]
A2/A1 are connected to ground
A0 is connected to 3.3V supply		0b11000010x61
BoosterPack HeadersI2C1,

I2C3

Dependent on target
Boot mode IO ExpanderI2C1The first 6 bits of the target address are set to 010000, the next bit is determined by the addr pin of the IO expanderIO_ADDR pin connected to 3.3V supply0b01000010x21

IO Expander

I2C1The first 6 bits of the target address are set to 010000, the next bit is determined by the addr pin of the IO expanderIO_ADDR pin connected to 3.3V supply0b01000010x20
Note: Underlined address bits are fixed based on the device addressing and cannot be configured.