Welcome to CD747’s documentation!

Contents:

• Introduction
  • Key specifications
  • Releases
  • Block Diagram
  • Applications
• Quick start
  • Setting up
  • Default behaviour
• Link ID Management
• Operating Modes
  • Command mode
  • Data mode
• Audio Agent Commands
• Audio Agent Configuration
  • Audio Agent Configuration
  • Audio configuration
    • Analog interface
    • Digital interface
    • Resampling
• Audio Agent Notifications
• Pairing and connection
  • Secure Simple Pairing capabilities
  • Pairing commands
  • Connection
  • Link loss
• Bluetooth profiles
  • A2DP / AVRCP
    • True Wireless Stereo
    • Dual Stream
    • TalkBack
  • BLE
    • General BLE functionalities
    • Peripheral role
    • Central role
    • Beacon role
  • HFP
  • HID
  • MAP
  • PBAP
  • SPP
    • General functionalities
    • Command over SPP
    • SPP High Speed
• PIO functionalities
  • GPIO control enabled
  • GPIO control disabled
  • Restoring the default configuration
  • Capacitive touch sensors
  • Class 1 device
• LED indications
• Power Management
  • Battery configuration
• Features
  • Device Firmware Upgrade
  • Speech recognition
  • Tone generation
• Appendix A: Examples
  • Pairing and connection with Audio Agent
  • Link Policy
  • Digital Audio configuration
  • A2DP
    • Multi-connection and audio routing
    • Music source
    • True Wireless Stereo (TWS)
    • TalkBack
  • HFP
    • Incoming call
    • Outgoing call
    • Call answer/reject
    • Call transfer
    • End call
    • Three way calling
    • AT commands
  • PBAP
  • MAP
  • BLE
    • BC Smart service
    • Generic commands
    • Beacons
    • Set advertising data
    • Set scan response data
  • HID
  • SPP
  • Tones
• Appendix B: Tone parameters and flags
• Appendix C: Error codes
• Terms and definitions
• General Notes
• Change log