N Input to 1 Output MIPI CSI-2 Camera Aggregator Bridge

Connecting Multiple Dissimilar Image Sensors to Applications Processors with Minimal Latency

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New video applications in areas of artificial intelligence, drones, virtual reality and automobiles require input from multiple sensors. These sensors can include video cameras, but increasingly non-traditional sensors such as radar, lidar, and sonar are used in these applications as well.

Lattice CrossLink Family can interface to multiple MIPI CSI-2 compatible sensors and aggregate data to a single CSI-2 output stream. An ideal method for combining these dissimilar sensor sources utilizes MIPI CSI-2 Virtual Channels.

Using N input to 1 output camera aggregator bridge reference design for CrossLink Family, you can create a sensor aggregator design according to specific requirements. This reference design is free and is provided to demonstrate the use of Lattice’s popular CrossLink Family modular IPs including CSI-2/DSI D-PHY Receiver and CSI-2/DSI D-PHY Transmitter.


  • Supports MIPI CSI-2 inputs and outputs at up to 6 Gbps: 1, 2 or 4 Data Lanes
  • Configurable to merge from 2 to 5 input CSI-2 sensor streams. The Virtual Channel merge method assigns a unique virtual channel ID to each channel and data will be sent alternately between channels. Supports all CSI-2 data type: RAW, RGB, YUV
  • Compliant with MIPI D-PHY Specification v1.1
  • Compliant with CSI-2 Specification v1.1

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Application Examples

N:1 Application Examples

Block Diagram

CrossLink Modular IP Support Table


Technical Resources
MIPI CSI-2 Virtual Channel Aggregation Reference Design
1.1 3/29/2019 ZIP 6.2 MB
MIPI CSI-2 Virtual Channel Aggregation User Guide
FPGA-RD-02051 1.2 10/1/2019 PDF 2.5 MB

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