SWRU493C July   2024  – January 2025 CC2564C

 

  1.   1
  2.   Trademarks
  3. 1Introduction to the CC256xCQFN-EM Board
    1. 1.1 Key Features
    2. 1.2 QFN EM Board Applications
  4. 2Module Description
  5. 3Module Detailed Description
    1. 3.1 Pin Description
      1. 3.1.1 Board Jumpers
        1. 3.1.1.1 Measuring Current Consumption
      2. 3.1.2 Antenna and U.FL Selector
      3. 3.1.3 RF Connectors
      4. 3.1.4 Debug Header
      5. 3.1.5 COM Connector
    2. 3.2 Clock Inputs
  6. 4Module Dimensions
  7. 5Tools and Software
    1. 5.1 TI's Bluetooth Software Solution
    2. 5.2 Evaluation Platforms
    3. 5.3 Bluetooth Hardware Evaluation Tool
  8. 6Certification
  9. 7Life Support Policy
  10. 8References
  11. 9Revision History

3.1.4 Debug Header

The debug header is provided for testing and debugging purposes. The debug header exposes important signals used in the design such as power, ground, debug, UART, and audio signals. All I/Os are at 1.8V. Table 3-4 shows the pinout.

Table 3-4 DEBUG HDR
Pin No. EM Adapter Pin Assignment Pin No. EM Adapter Pin Assignment
1 GND 2 VBAT
3 VIO_HOST 4 GND
5 AUD_FSYNC_1V8 6 AUD_CLK_1V8
7 AUD_OUT_1V8 8 AUD_IN_1V8
9 CLK_REQ_OUT_1V8 10 SLOW_CLK_EDGE
11 HCI_TX_1V8 12 HCI_RX_1V8
13 HCI_CTS_1V8 14 HCI_RTS_1V8
15 TX_DEBUG_1V8 16 nSHUTDOWN_1V8
17 VDD_1V8 18 GND