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

3.11 UART

The AM263Px LaunchPad uses the XDS110 as a USB2.0 to UART bridge for terminal access. UART0 transmit and receive signals of the AM263Px SoC are mapped to the XDS110 with a dual channel isolation buffer (ISO7721DR) for translating from the 3.3V IO voltage supply to the 3.3V XDS supply. The XDS110 is connected to a micro-B USB connector for the USB 2.0 signals. ESD protection is provided to the USB 2.0 signals by a transient voltage suppression device (TPD4E02B04DQAR). The micro-B USB connector's VBUS 5V power is mapped to a low dropout regulator (TPS79601DRBR) to generate the 3.3V XDS110 supply. A separate 3.3V supply for the XDS110 allows for the emulator to maintain a connection when power to the LaunchPad is removed.

Separate UART instances (UART2 & UART5) are mapped directly to the BoosterPack header.

AM263P UART Figure 3-21 UART