The circuit diagram of Radxa CM3

Is the circuit diagram of Radxa CM3 schematic published somewhere?

We are considering whether Radxa CM3 can be used in our solution.
I checked the Pinout, but there were some parts where I couldn’t tell which PIN of the RK3566 was pulled from.
I would like to refer to the circuit diagram of Radxa CM3 because I want to judge whether it meets our requirements such as multiple SPI and I2S can be used.

Yes, the CM3 schematic can be found here:

https://wiki.radxa.com/Rock3/hardware

The IO board design can also found on that page.