SLVUCV7 April   2024 TPS23881B

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 EVM Input/Output Connectors and Switches
    2. 2.2 EVM LEDs
    3. 2.3 EVM Test Points
    4. 2.4 EVM Test Jumpers
    5. 2.5 Quick Start
      1. 2.5.1 Input Power
        1. 2.5.1.1 Input Power (Labeled VPWR)
        2. 2.5.1.2 Local 3.3V (Labeled 3.3V)
        3. 2.5.1.3 External 3.3V (Labeled 3.3 V_USB)
      2. 2.5.2 PoE Port Interfaces
        1. 2.5.2.1 IEEE802.3bt 2-Pair Ports
        2. 2.5.2.2 IEEE802.3bt 4-Pair Ports
      3. 2.5.3 I2C Interfaces
        1. 2.5.3.1 USB2ANY
        2. 2.5.3.2 MSP-EXP430FR5969
      4. 2.5.4 Basic Test Setup Using Autonomous Mode
      5. 2.5.5 Basic Test Setup Using USB2ANY for I2C Interface (Auto Mode or Semi-Auto Mode Operation with I2C Monitoring)
      6. 2.5.6 Advanced Test Setup Using MSP-EX430FR5969 LaunchPad
    6. 2.6 TPS23881B1 Autonomous Operations
  9. 3Software
    1. 3.1 TPS23881B1EVM GUI Setup
      1. 3.1.1 TPS23881B1EVM GUI Installation
      2. 3.1.2 TPS23881B1EVM GUI Operation
      3. 3.1.3 MSP-EXP430FR5969 Details
        1. 3.1.3.1 Basic CCS and Terminal Setup
      4. 3.1.4 MSP430 Reference Code
        1. 3.1.4.1 Overview
        2. 3.1.4.2 Auto Mode
        3. 3.1.4.3 Semi Auto Mode
  10. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Drawings
      1. 4.2.1 Layout Guidelines
        1. 4.2.1.1 Supply Voltage Decoupling
        2. 4.2.1.2 Port Current Kelvin Sensing
        3. 4.2.1.3 Ground Plane Spacing and Isolation (GND, GND1, and EARTH Nets)
    3. 4.3 Bill of Materials
  11. 5Additional Information
    1. 5.1 Trademarks

3.1.4.2 Auto Mode

Auto mode operation is demonstrated in the MSP430 reference code and Figure 4-8 shows the flow chart. Basically, after configuration, the TPS23881B1 handles port detection, classification, turn on, and faults and there is no control needed from the host.

TPS23881B1EVM Auto Mode System Software Structure Figure 3-8 Auto Mode System Software Structure