SLVUCR8B September   2023  – August 2026 TPS25751

 

  1.   1
  2.   Read This First
    1.     Notational Conventions
    2.     Glossary
    3.     Related Documents
    4.     Support Resources
    5.     Trademarks
  3. 1Introduction
    1. 1.1 Introduction
      1. 1.1.1 Purpose and Scope
    2. 1.2 PD Controller Host Interface Description
      1. 1.2.1 Overview
      2. 1.2.2 Register and Field Notation
    3. 1.3 Unique Address Interface
      1. 1.3.1 Unique Address Interface Protocol
  4. 2PD Controller Policy Modes
    1. 2.1 Overview
    2. 2.2 Source Policy Mode
    3. 2.3 Sink Policy Mode
  5. 3Unique Address Interface Register Detailed Descriptions
    1. 3.1 Register Overview
    2. 3.2 TPS25751 Registers
  6. 44CC Task Detailed Descriptions
    1. 4.1 Overview
    2. 4.2 CPU Control Tasks
      1. 4.2.1 'Gaid' - Return to Normal Operation
      2. 4.2.2 'GAID' - Cold Reset Request
    3. 4.3 PD Message Tasks
      1. 4.3.1 'SWSk' - PD PR_Swap to Sink
      2. 4.3.2 'SWSr' - PD PR_Swap to Source
      3. 4.3.3 'SWDF' - PD DR_Swap to DFP
      4. 4.3.4 'SWUF' - PD DR_Swap to UFP
      5. 4.3.5 'GSkC' - PD Get Sink Capabilities
      6. 4.3.6 'GSrC' - PD Get Source Capabilities
      7. 4.3.7 'GPPI' - PD Get Port Partner Information
      8. 4.3.8 'SSrC' - PD Send Source Capabilities
      9. 4.3.9 'MBRd' - Message Buffer Read
    4. 4.4 Power Switch Tasks
      1. 4.4.1 'SRDY' - System Ready to Sink Power
      2. 4.4.2 'SRYR' - SRDY reset
    5. 4.5 Patch Bundle Update Tasks
      1. 4.5.1 'PBMs' - Start Patch Burst Mode Download Sequence
      2. 4.5.2 'PBMc' - Patch Burst Mode Download Complete
      3. 4.5.3 'PBMe' - End Patch Burst Mode Download Sequence
      4. 4.5.4 'GO2P' - Go to Patch Mode
      5. 4.5.5 'FLrd' - Flash Memory Read
      6. 4.5.6 'FLad' - Flash Memory Write Start Address
      7. 4.5.7 'FLwd' - Flash Memory Write
      8. 4.5.8 'FLvy' - Flash Memory Verify
    6. 4.6 System Tasks
      1. 4.6.1 ANeg: Auto Negotiate Sink Update
      2. 4.6.2 'DBfg' - Clear Dead Battery Flag
      3. 4.6.3 'I2Cr' - I2C Read Transaction
      4. 4.6.4 'I2Cw' - I2C Write Transaction
      5. 4.6.5 'GPsh' - set GPIO high
      6. 4.6.6 'GPsl' - set GPIO low
  7. 5User Reference
    1. 5.1 PD Controller Application Customization
    2. 5.2 Loading a Patch Bundle
    3. 5.3 AUTO_NEGOTIATE_SINK Register
      1. 5.3.1 AUTO_NEGOTIATE_SINK Usage Example 1
      2. 5.3.2 AUTO_NEGOTIATE_SINK Usage Example 2
      3. 5.3.3 AUTO_NEGOTIATE_SINK Usage Example 3
      4. 5.3.4 AUTO_NEGOTIATE_SINK Usage Example 4
    4. 5.4 GPIO Events
  8. 6Revision History

4.2.2 'GAID' - Cold Reset Request

Table 4-3 'GAID' - Cold Reset Request
DescriptionThe 'GAID Task causes a cold restart of the PD Controller processor.
INPUT DATAXNone
OUTPUT DATAXNone
Task CompletionTechnically this Task never completes because the processor restarts. However, because all HI registers return to their default state upon reboot, all CMDx/DATAx registers will return to 0, which will mark this Task as complete. This Task forces the PD Controller to reboot its OTP bootloader.
Side EffectsThe 'GAID' Task causes a cold restart of the PD Controller processor. PD Controller can momentarily NAK I2C transactions while rebooting.
Additional InformationWhen the PD controller is in APP mode, it immediately enters the Type‑C Error Recovery state. After the typical 1‑second delay, it performs a warm restart, and the register settings revert to the original AppConfig configuration defined by the user in the Application Customization Tool.