Issue with VBUS detect pin on Jetson orin RX/Nano

[hieu.lv982]

Hello
I am designing a custom carrier board for Jetson Orin RX/Nano. I am encountering a conflict in selecting the VBUS_Detect pin for the USB ports. According to the documentation I have read, only one pin 87 GPIO0 (USB_VBUS_EN0), is used to control VBUS in host mode or detect VBUS in device mode. For example in the design guide, Pin 87 is used for USB3.2 host, or in the reference devkit schematic, Pin 87 is used for USB Recovery port in device mode. So, I have some issues to verify.

1. Do I need to use the VBUS_Detect pin for the USB2-0 port in recovery mode?
2. If I have both USB3.2 host port and USB3.2 device port on the board (both type A connector), how can I have VBUS_Detect pin for both ports without using additional USB Hub IC?
3. Is there any documentation to find more VBUS_Detect Pins that I don’t know about?

[sgursal]

Refer to Jetson Orin NX Series Module Datasheet, only one USB2.0 port USB0 supports RCM, Host, Device Mode. All other ports are Host only.

[hieu.lv982]

Thanks for your reply.
Okay, so only USB2.0 port 0 supports Device mode, what about my questions about the VBUS_Detect pin?

[sgursal]

Additional VBUS_Detect pins are not available. VBUS_Detect is only used in device mode. Does this answer your question?

[hieu.lv982]

Tks for your reply.
It’s enough for my question.