SPMU379A April   2026  – July 2026 TPS25751A

 

  1.   1
  2.   Read This First
    1.     Notational Conventions
    2.     Glossary
    3.     Related Documents
    4.     Support Resources
    5.     Trademarks
  3. 1Introduction
    1. 1.1 Purpose and Scope
  4. 2PD Controller Host Interface Description
    1. 2.1 Overview
    2. 2.2 Register and Field Notation
  5. 3Unique Address Interface
    1. 3.1 Unique Address Interface Protocol
  6. 4PD Controller Policy Modes
    1. 4.1 Overview
    2. 4.2 Source Policy Mode
    3. 4.3 Sink Policy Mode
  7. 5Register Overview
    1. 5.1 TPS25751A Registers
  8. 64CC Task Detailed Descriptions
    1. 6.1 Overview
    2. 6.2 CPU Control Tasks
      1. 6.2.1 'Gaid' - Return to Normal Operation
      2. 6.2.2 'GAID' - Cold Reset Request
    3. 6.3 PD Message Tasks
      1. 6.3.1 'SWSk' - PD PR_Swap to Sink
      2. 6.3.2 'SWSr' - PD PR_Swap to Source
      3. 6.3.3 'SWDF' - PD DR_Swap to DFP
      4. 6.3.4 'SWUF' - PD DR_Swap to UFP
      5. 6.3.5 'GSkC' - PD Get Sink Capabilities
      6. 6.3.6 'GSrC' - PD Get Source Capabilities
      7. 6.3.7 'SSrC' - PD Send Source Capabilities
      8. 6.3.8 'GPPI' - PD Get Port Partner Information
      9. 6.3.9 'MBRd' - Message Buffer Read
    4. 6.4 Power Switch Tasks
      1. 6.4.1 'SRDY' - System Ready to Sink Power
      2. 6.4.2 'SRYR' - SRDY reset
    5. 6.5 Patch Bundle Update Tasks
      1. 6.5.1 'PBMs' - Start Patch Burst Mode Download Sequence
      2. 6.5.2 'PBMc' - Patch Burst Mode Download Complete
      3. 6.5.3 'PBMe' - End Patch Burst Mode Download Sequence
      4. 6.5.4 'GO2P' - Go to Patch Mode
      5. 6.5.5 'FLrd' - Flash Memory Read
      6. 6.5.6 'FLad' - Flash Memory Write Start Address
      7. 6.5.7 'FLwd' - Flash Memory Write
      8. 6.5.8 'FLvy' - Flash Memory Verify
    6. 6.6 System Tasks
      1. 6.6.1 'ANeg' - Auto Negotiate Sink Update
      2. 6.6.2 'DBfg' - Clear Dead Battery Flag
      3. 6.6.3 'I2Cr' - I2C Read Transaction
      4. 6.6.4 'I2Cw' - I2C Write Transaction
      5. 6.6.5 'GPsh' - set GPIO high
      6. 6.6.6 'GPsl' - set GPIO low
  9. 7User Reference
    1. 7.1 PD Controller Application Customization
    2. 7.2 Loading a Patch Bundle
    3. 7.3 AUTO_NEGOTIATE_SINK Register
      1. 7.3.1 AUTO_NEGOTIATE_SINK Usage Example 1
      2. 7.3.2 AUTO_NEGOTIATE_SINK Usage Example 2
      3. 7.3.3 AUTO_NEGOTIATE_SINK Usage Example 3
      4. 7.3.4 AUTO_NEGOTIATE_SINK Usage Example 4
    4. 7.4 Liquid Detection Registers
    5. 7.5 GPIO Events
  10. 8Revision History

7.1 PD Controller Application Customization

The PD Controller application binary can be pushed over I2C using the I2Ct port, or the PD controller can read it from an external EEPROM at target address 0x50 on the I2Cc port. The PD Controller application binary provides a way to customize and initialize the settings of the PD Controller. It allows for any register bit accessible through the Host Interface to be changed before the PD Controller application starts normal operation, to configure system-related settings that must be correct before any application decision is made. TI provides a GUI tool to create the PD Controller application binary.