The Jetson AGX Camera Connector breaks out 8 channels of 2-lane MIPI CSI. This can be seen in the NVIDIA Jetson AGX Xavier Series Camera Module Hardware Design Guide Table 3-1 “Jetson Camera Connector (2x60) Pinout”
Based on this pinout, it appears that the Jetson should be able to ingest camera streams from 8 cameras, each using 2-lane CSI.
However, in section 2.2.2 Multiple Camera Case, the design guide notes that…
’ When multiple camera sensors are used (up to 6), a camera interposer module …’
Which suggests a maximum of 6 cameras can be ingested. Furthermore, the diagram in this section shows the 6 cameras using an odd group of CSI inputs on the Jetson
Channel 1 > CSI_0
Channel 2 > CSI_1
Channel 3 > CSI_2
Channel 4 > CSI_3
Channel 5 > CSI_4
Channel 6 > CSI_6
So CSI_5 is skipped. (And CSI_7 is not used).
Is there a fundamental limitation that only allows ingest on these 6 CSI channels?
One possibility is that NVIDIA does not publish the capability to ingest on CSI_5 and CSI_7 because they use pins on the camera connector that should not be used for differential pairs (Pins 59/61 and pins 60/62 are not differential pairs, but are used as such for CSI_5 and CSI7).
Is this the case? Can all 8 MIPI CSI channels be utilized?