FPD Link III SerDes Linux driver

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FPD Link III Description

FPD-Link III, an acronym for Flat Panel Display Link III, is an interface used in many automotive applications to transport audio/video between points. This interface enables the transport of high-definition digital video, as well as a bidirectional control channel, over a low-cost cable, either twisted pair or coax. There are FPD-Link III serializers and deserializers (SerDes) that have been optimized either for the link between a processor and a display or between the processor and a camera.

FPD Link III Diagram

Key Features

• Adaptive Equalization: This feature Compensates cable length and age.
• I2C Aliases: The aliases allow I2C communication to several hardware instances like cameras in the same I2C bus.

FPD Link III Aliases

• Power-over-coax (PoC): a single cable allows data transmission and power.

FPD Link III PoC Diagram

• Multiple interface options: RGB, YUV, OpenLDI (LVDS), MIPI CSI-2, HDMI.
• Frame synchronization: internal and external trigger signals.

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FPD Link III Internal synchronization

• Virtual Channel ID: The channel virtualization creates interleaved video streams on a single CSI-2 port. The mapping values are configured internally in the deserializer.

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FPD Link III Virtual Channel

Tested SerDes devices

• The DS90UB953A is a compact serializer especially suited for camera applications in the automotive field.
• The DS90UB960 is a deserializer HUB that handles up to 4 simultaneous connections to serializers.

References

• DS90UB960 Datasheet
• DS90UB953 Datasheet

See also

Demo:

Multi-camera Demo

Linux Drivers

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