SNLA132G October   2011  – November 2020 DS90UB928Q-Q1 , DS90UB941AS-Q1 , DS90UB948-Q1 , DS90UH925Q-Q1 , DS90UH926Q-Q1 , DS90UH940N-Q1

 

  1.   Trademarks
  2. 1Introduction
  3. 2Overview of Internal Test Pattern Generation
    1. 2.1 Color Mode
    2. 2.2 Video Timing Modes
    3. 2.3 Clock Generation
    4. 2.4 Pattern Selection
    5. 2.5 Pattern Inversion
    6. 2.6 Auto-Scrolling
  4. 3Serial Control Bus Registers for Internal Test Pattern Generation
    1. 3.1 Direct Register Map
      1. 3.1.1 Control and Configuration
      2. 3.1.2 Indirect Access Address and Data
      3. 3.1.3 DS90Ux928Q-Q1/DS90UB924-Q1 Internal Clock Source
    2. 3.2 Indirect Register Map
      1. 3.2.1 General Control
      2. 3.2.2 Internal Timing Control
      3. 3.2.3 Auto-Scrolling Control
  5. 4Configuration Examples
    1. 4.1 Auto-Scrolling Configuration
    2. 4.2 Internal Default Timing Configuration
    3. 4.3 Custom Display Configuration
    4. 4.4 1080p60 with External Clock Example Configuration
    5. 4.5 Resolution Readback Example
  6. 5Conclusion
  7. 6References
  8. 7Revision History

Introduction

The Texas Instruments' FPD-Link III family of products (Table 1-1) offers an internal test pattern generator. This feature provides a user-friendly method for quickly debugging and testing both integrated displays, as well as the link between the serializer and deserializer. This app note focuses specifically on FPD Link III IVI (In Vehicle Infotainment) devices for display applications (94x and 92x).

Table 1-1 FPD-Link III IVI Devices
SerializersDeserializers
DS90UH925Q-Q1/DS90UB925Q-Q1DS90UH926Q-Q1/DS90UB926Q-Q1
DS90UB921-Q1DS90UB924-Q1
DS90UH927Q-Q1/DS90UH927Q-Q1DS90UH928Q-Q1/DS90UB928Q-Q1
DS90UH947-Q1/DS90UH947-Q1DS90UH948-Q1/DS90UB948-Q1
DS90UH929-Q1/DS90UB929-Q1DS90UH940-Q1/DS90UB940-Q1
DS90UH949-Q1/DS90UB949-Q1DS90UH940N-Q1/DS90UB940N-Q1
DS90UH949A-Q1/DS90UB949A-Q1
DS90UH941AS-Q1/DS90UB941AS-Q1