SLVUB62B June   2017  – November 2020

 

  1.   Trademarks
  2. 1 About this Manual
  3. 2 Information About Cautions and Warnings
  4. 3 Items Required for Operation
  5. 4 Introduction
  6. 5 Setup
    1. 5.1 Switch, Push Button, Connector, and Test Point Descriptions
      1. 5.1.1  Power Path Jumper Configuration
        1. 5.1.1.1 TPS65988 Jumper Configuration
        2. 5.1.1.2 TPS65987D Jumper Configuration
        3. 5.1.1.3 TPS65987S Jumper Configuration
      2. 5.1.2  DP Source Receptacle
      3. 5.1.3  S1 HRESET Push-Button
      4. 5.1.4  S6 SPI MISO Pull Down Button
      5. 5.1.5  S3: FTDI Enable and Disable
      6. 5.1.6  S2: SPI , I2C, and BusPowerZ Configurations
      7. 5.1.7  J1: Barrel Jack Power Connector
      8. 5.1.8  Barrel Jack Detect
      9. 5.1.9  USB Type B Connector (J11)
      10. 5.1.10 USB Type-CConnector (J2)
      11. 5.1.11 USB Micro B Connector (J9)
      12. 5.1.12 TP13 (5 V), TP8 (3.3 V), and TP12 (1.2 V)
      13. 5.1.13 Aardvark Connector (J10)
      14. 5.1.14 TP10, TP11, TP15, TP16, TP17, TP18, TP9: GND Test Points
      15. 5.1.15 TP1, TP2, TP3 and TP4 – CC1 and CC2 Test Points
      16. 5.1.16 TP14 (PA and PB): VBUS Test Point
      17. 5.1.17 TP7, TP6, and TP5: A-VAR, B-VAR, and System Power Test Points Respectively
      18. 5.1.18 J3 and J4 (Bottom of EVM): Signal Headers
    2. 5.2 LED Indicators Description
      1. 5.2.1 MXCTL0-2 and HPD LEDs (SS MUX Control LED)
      2. 5.2.2 Status LEDs
      3. 5.2.3 S2 Switch Bank Functionality
  7. 6 Using the TPS65988EVM
    1. 6.1 Powering the TPS65988EVM
    2. 6.2 Firmware Configurations
  8. 7 Connecting the EVM
    1. 7.1 Connecting to Various Devices
      1. 7.1.1 Connecting to a Legacy Type-A Device
      2. 7.1.2 Connecting to USB Type-C Devices
      3. 7.1.3 Testing DisplayPort Alternate Mode and USB 2.0 and USB 3.0
        1. 7.1.3.1 Required Hardware
    2. 7.2 Debugging the EVM
      1. 7.2.1 Connection Not Established
      2. 7.2.2 Resetting Behavior
  9. 8 REACH Compliance
  10. 9 TPS65988EVM Schematic
  11. 10TPS65988EVM Board Layout
  12. 11TPS65988EVM Bill of Materials
  13. 12Revision History

5.1.1.2 TPS65987D Jumper Configuration

To use the TPS65988EVM to perform as a TPS65987D, the jumpers on J11 and J12 needs to be adjusted. Place a jumper on J12 to short the two VBUS nodes together. In this use case, one of the internal power paths is used as a source path and the other internal power path is used as a sink path. The TPS65987D supports one Type-C port and contains 2 internal power paths. The TPS65988 can be configured to act as a TPS65987D through the use of a TPS65987D Configuration Template in the TPS6598x Application Customization Tool. In this configuration, PPHV2 is used as the Source path for the Type-C port, it is connected to the net B-Var which is the Variable DC/DC used for Port B in the TPS65988 configuration. PPHV1 is used for the Sink path on the TPS65987D. PPHV1 connects to the net SYSPWR in this configuration. Refer to Figure 5-3 and Figure 5-4 for the TPS65987D Jumper Configuration. When the TPS65988EVM is configured as a TPS65987D, only Port A is functional.

GUID-03C77C94-8344-4B5B-9489-02D7CF9C50DE-low.pngFigure 5-3 TPS65987D Jumper Configuration
GUID-75D8E1D6-0FA5-4497-855A-C001379D32AF-low.pngFigure 5-4 TPS65987D Jumper Configuration Net Names