Hardware capabilities

Deserializer

The Deserializer chip provided by Texas Intruments is capable of connecting up to 4 Serializers. Some other versions of the deserializer chips are only capable of 2 Serializer connections. Auvidea uses them in a variety of hardware configurations to fit in a wide range of different use cases.

The configuration communication is accomplished over I²C, and the camera data transfer is accomplished over CSI. Both protocols are roouted over the FPD-Link as shown in the diagrams below.

Dual-Deserializer

Hub-Deserializer

Virtual Channels

Depending on the platform CSI-2 interfaces can support up to 4 virtual channels. The following table provides a more insight on the platform capabilities.

virtual channels are used when more than one CSI-2 video stream is transferred over one CSI-2 connection. See Video routing.

Compute Module	Virtual Channel Supported
Nano
TX2 NX
Xavier-Series
Orin-Series

FPD-Link Hardware

The deserializer is limited to 1.6 Gbps on each MIPI CSI-2 data lane. This bandwidth has to be shared with multiple camera streams, if virtual channeling is used on the V3/FPD-Link III Port.

Video routing

Hub-Deserializer

Deserializer chips, with more than one CSI interface, are providing the free choice to route the data for each camera stream to one exposed CSI-Channels of the Jetson module.

Dual-Deserilalizer

In comparison, the Deserializer Chip with only one interface is limited to the following configuration.

Demonstration setup

Components

This system is a good starting point for FPD-Link III camera developement.

Feel free to contact [e-mail] with the following components or a note to this page, if you want a replica of this demonstration system.

Part	amount	Description
	1	Xavier NX, Jetson SoM
70801/70801-AI	1	JNX30M, Carrierboard
	2	FPD-Link III Deserializer
	2	FPD-Link III camera package.
38423-30	2	(22-Pin to 22-Pin) Connection Jetson -> Deserializer