SCI interface serial 1, 2, , 3 or //

aco31

Hello,
I'm looking for the type of CSI interface of boards IOT, PRIME and ZERO.
I'm not found it in user manual, and I not found the dadasheet RDA8810 soc.
If I look the pinning of CSI in the UM I can see D0 to D7 like parallele interface, but it is CSI (Camera Serial Interface), not CPI (Camera Parallele Interface). I thinked find 4 differencial ways D1-, D1+,.., D4-, D4+.
Could you precise that for me?
Thanks
Alain