SDAA475 August   2026 TDA4AH-Q1 , TDA4AP-Q1 , TDA4VH-Q1 , TDA4VP-Q1

 

  1.   1
  2.    Abstract
  3.    Trademarks
  4. 1 Introduction
  5. 2USB 3.1 Compliance Mode: Theory of Operation
    1. 2.1 Acronyms and Definitions
    2. 2.2 LTSSM and RX Detect
    3. 2.3 Compliance Mode Entry Methods
    4. 2.4 Register Reference
      1. 2.4.1 xHCI PORTSC: Port Status and Control Register
      2. 2.4.2 PORTSC Bit-Field Description (USB 3.0 — xHCI Spec §4.19.7)
      3. 2.4.3 PLS Encoding: USB 3.0 Link States
      4. 2.4.4 Verifying RX Detect Before Compliance Entry
      5. 2.4.5 Compliance Write Value Decode: 0x0a010340
    5. 2.5 Compliance Pattern CP1 and SSC
      1. 2.5.1 USB PHY Register — CP1 ( Clock Pattern)
      2. 2.5.2 Register Address
      3. 2.5.3 CP1 Write Value Decode: 0x18230c10
  6. 3 Compliance Procedure — TDA4VH/AH/TDA4AP/VP
    1. 3.1  Hardware Requirements
    2. 3.2  Software Requirements
    3. 3.3  EVM Setup
    4. 3.4  Compliance Pattern Reference
    5. 3.5  LFPS: Low-Frequency Periodic Signaling
    6. 3.6  Compliance Pattern 0 (CP0)
    7. 3.7  Compliance Pattern 1 (CP1)
    8. 3.8  LeCroy Scope Setup and Results
    9. 3.9  Troubleshooting
    10. 3.10 Compliance Procedure: DRA821 / TDA4AL/VL/VE / J721S2
  7. 4 Summary
  8. 5References

3.3 EVM Setup

The Host USB3.0 test fixture-1 connects to the EVM at the type-C connector through a type-C to type-A connector. Set the DIP switch SW7/SW11 to SD card boot mode. The DIP switch must be set to DFP mode. The CTS requires a 3m cable and host test fixture-2 (5in trace) which is not part of the setup here, however, the LeCroy SigTest framework compensates for the long channel by channel emulation.

EVM SD Card boot mode switch settings Figure 3-1 EVM SD Card boot mode switch settings
EVM USB-C Switch Setting Figure 3-2 EVM USB-C Switch Setting

Connect the Main UART terminal of the EVM to the PC and open the first of the four COM ports on the TeraTerm terminal. Configure the serial port with the speed of 115200kbps instead of the default 9600kbps. Power on the EVM and the SoC now boots from the SD card.

EVM Setup Figure 3-3 EVM Setup