SNLA356 September   2020 DS90UB941AS-Q1 , DS90UH941AS-Q1

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
  4. 2MIPI DSI Source Requirements
    1. 2.1 Supported DSI Modes
    2. 2.2 Clocking Rates and Clock Type
    3. 2.3 Blanking or Low Power Modes (BLLP)
    4. 2.4 DSI Packet Timing
      1. 2.4.1 Non-Burst Mode With Sync Pulses
      2. 2.4.2 Non-Burst Mode With Sync Events
      3. 2.4.3 Burst Mode
  5. 3Bring-Up and Debug Flow
  6. 4Example Bringup Scenarios
    1. 4.1 Discontinuous Clock
    2. 4.2 Missing Periodic Low Power Transitions
    3. 4.3 Incorrect DSI Packet Timing
    4. 4.4 THS-SKIP Configuration
    5. 4.5 End of Transmission Packets (EoTp)
    6. 4.6 Configuration of Sync Width for Event Mode/Burst Mode
  7. 5Summary
  8. 6References

Abstract

The DS90UB941AS-Q1 FPD-Link III serializer enables low latency, and highly flexible bridging from MIPI DSI to FPD-Link III in order to carry video data, audio data, control data, and other communications protocols such as I2C, and SPI over longer cable distances when paired with a DSI source.

The MIPI DSI protocol contains a wide feature set and flexibility in order fit as many applications as possible. As a result, system designers may struggle to understand how to properly configure and verify a complex DSI source in conjunction with FPD-Link. This guide will provide a common bring-up flow to help with DSI source configuration considerations and insight on how to resolve common system level problems when implementing a solution with DS90UB941AS-Q1
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