SNLA497 July   2026 DS90UB954-Q1 , DS90UB960-Q1

 

  1.   1
  2.   Abstract
  3. 1Introduction
  4. 2Application Scenarios and Requirements
    1. 2.1 Application Scenarios
    2. 2.2 Display Requirements
  5. 3Solutions
    1. 3.1 Panoramic Application with Single-Stage SERDES Transmission
    2. 3.2 Panoramic Application with Dual-Stage SERDES Transmission
      1. 3.2.1 IVI SoC Supports CSI-2 VCID Detection
      2. 3.2.2 IVI SoC Does Not Support VCID Detection
  6. 4Summary
  7. 5References

3 Solutions

FPD-Link Des CSI output supports two aggregation modes: synchronous mode and non-synchronous mode. To maintain synchronous output of the four-channel surround-view camera data, the FPD-Link Des CSI output in automotive 360-degree surround view systems typically adopts the synchronous aggregation mode. However, when FPD-Link Des uses the synchronous aggregation mode and an anomaly occurs in a certain channel of the camera, the FPD-Link Des CSI port will stop outputting, resulting in a system black screen, as shown in Figure 3-1. To ensure that when an anomaly occurs in a certain channel of the camera, the other cameras can still display normally, the following operations are generally required. Solutions will vary for different application scenarios, please refer to the text below for more detailed operations.

  1. Disable the forwarding of the abnormal input port of FPD-Link Des to resume CSI output.
  2. The IVI SoC performs a black data padding operation for the abnormal input port.
  3. During steps 1 and 2, the IVI SoC uses the previous frame image for display to guarantee that no black screen occurs in the display.