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

5.2.3 S2 Switch Bank Functionality

The I2C address setting must match the configuration generated by the TPS65988 configuration tool. Table 5-5 summarizes the I2C address settings. To adjust the dead battery boot behavior, the setting on ADCIN1 can be adjusted. Table 5-6 summarizes the ADCIN1 settings. The specific settings for each divider ratio is discussed in the TPS65988 datasheet.

Table 5-5 I2C Address Setting
SwitchOn, OffBitsDivider Ratio
1-3Off000b0.00
1On001b0.34
2On010b0.50
3On011b0.90
Table 5-6 ADCIN1 Setting
SwitchOn, OffBitsDivider Ratio
4-6Off000b0.00
4On001b0.34
5On010b0.50
6On011b0.90