MIPI DSI/CSI-2 to OpenLDI LVDS Interface Bridge for CertusPro-NX

Converts DSI or CSI-2 MIPI Data to OpenLDI Format on LVDS

Mobile Industry Processor Interface (MIPI®) Display Serial Interface (DSI) is one of the most popular display interface in the consumer market today. OpenLDI LVDS is still popular in some areas as the main predecessor of display interface. The majority of image sensors and application processors (AP) in the consumer market use MIPI Camera Serial Interface 2 (CSI-2) as a video signal interface. In some cases, the interface and/or format conversion is useful to connect devices which cannot connect directly.

Using the MIPI DSI/CSI-2 to OpenLDI LVDS Interface Bridge reference design for CertusPro-NX™ devices takes DSI or CSI-2 MIPI data and converts them to OpenLDI format on LVDS. The MIPI RX module can also be realized by a soft macro utilizing general DDR modules (D-PHY Soft IP) while LVDS TX module is realized by soft macro utilizing general DDR modules.

Dynamic parameter setting - I2C Slave modules enable parameter change on the fly if necessary for CSI-2 RX.

Design and File Modification - This RD is based on version 1.3.0 of the RX D-PHY IP, version 1.4.0 of the Byte-to-Pixel Converter IP, and version 1.1.0 of the OpenLDI/LVDS Transmitter Interface IP. Due to the limitation of this IPs, some modifications are required depending on user configuration.

DSI Blanking Format - Define to make Data Lanes goes into Low Power during Blanking Time.

Support Data Types - Single DSI input (RGB888) to single or dual channel LVDS outputs (RGB888).


  • Single CSI-2 input (RGB888, RAW8, RAW10, RAW12 or RAW14) to single or dual channel RGB888 LVDS outputs (RGB888)
  • RX channel can have one, two, or four lanes with the bandwidth up to 1.5 Gbps per lane using RX D-PHY Soft IP
  • Number of TX data lanes is four (RGB888) per TX channel
  • Maximum TX bandwidth is 945 Mbps per lane
  • Image cropping option is available in case of CSI-2 input  
Lattice mVision Solutions Stack

Block Diagram


Technical Resources
MIPI DSI/CSI-2 to OpenLDI LVDS Interface Bridge for CertusPro-NX - Source Code
1.0 3/15/2022 ZIP 45.4 MB
MIPI DSI/CSI-2 to OpenLDI LVDS Interface Bridge for CertusPro-NX - Documentation
FPGA-RD-02252 1.0 3/15/2022 PDF 1.7 MB

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