Maximum number of cameras that ISP can handle

I’m using Orin NX. Going to have 1 StereoLabs ZED X camera + 1 CSI camera (5Mpx) works at the same time.
So it is about 2 CSI ports, 1 port with 4 lanes for ZED X camera. 1 port with 2-4 lanes for the 5Mpx camera. The single 5Mpx camera is 12bits raw RGGB output, so ISP need to involve in processing. I saw ISP is also involved into ZED X stereo camera. So it looks like the ISP need to process 3 cameras at the same time.

I would like to know how many cameras the ISP can handle at the same time?

Thank you.

Suppose able support to 8 with VC and 4 without VC but still need to consider the output size and frame rate.

Up to 4 cameras
(8 via virtual channels***)
8 lanes MIPI CSI-2
D-PHY 2.1 (up to 20Gbps)

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