: For the interface between the CM4 and a baseboard, refer to the CM4 Datasheet which lists all 200 pin functions. Carrier Board Templates : Developers like Shawn Hymel on GitHub
The CM4 uses two 100-pin connectors (Hirose DF40C-100DP-0.4V) to break out its 28 GPIO pins, PCIe Gen 2 x1, dual HDMI 2.0, and MIPI CSI/DSI interfaces. cm4 94v0 schematics
You cannot simply copy the Raspberry Pi Foundation's reference design and call it 94V0. The flammability rating imposes physical constraints that must be visible in the schematic's notes. : For the interface between the CM4 and