DADA SOM/DADA Hardware/Peripherals/Camera

History
Issue Date	Notes
2025/09/01	First release

Peripheral Camera Subsystem

The Camera Serial Interface Receiver (CSI_RX_IF) - in the DADA SOM - allows the device to stream video inputs from multiple cameras to internal memory.

Description

The CSI_RX_IF module supports the following features:

• Compliant to MIPI CSI v1.3
  • supports up to 16 virtual channels per input (partial MIPI CSI v2.0 feature)
• Data rate up to 2.5 Gbps per lane (wire rate)
• Supports 1, 2, 3, or 4 Data Lane connection to DPHY_RX
• Programmable formats including YUV420, YUV422, RGB, Raw, and User Defined (over 25 different formats supported)
• One independent (simultaneous) output stream:
  • One (up to 32 Channels) DMA interface through a 128-bit PSI_L connection to DMSS for transfers to memory:
    • Byte packed (32x4) format, elastic buffer mode, max rate 1 data cycle every 4 main clocks
    • 32 thread ID’s supported (virtual channel & data type combinations); Flexible number of threads (32 Max)
    • Virtual channels and data types mapped via mmr to PSI_L thread ID’s
    • Internal FF based FIFO; RAM based buffer (2kx128)
• Video inputs come from the DPHY_RX which allows the camera physical port module to grab video streams from external sensor cameras and other CSI2 compliant sources
  • Compliant to MIPI D-PHY standard v1.2
  • Supports up to 4 data and 1 clock lanes
  • Supports up to 2.5 Gbps (with deskew) and 1.5 Gbps (without deskew) per data lane