SPRUIG1A September 2017 – October 2025
The Processor Module connects the AM572x USB1/USB2 ports as follows:
The AM572x USB1 port has its USB_ID pin (GPIO7_25) pulled low for host mode. The three downstream ports of the USB 3.0 hub attached to the AM572x USB1 port are connected to a single port USB 3.0 A connector and a stacked, two port USB 3.0 A connector.
The AM572x USB2 port has its USB_ID pin (GPIO7_24) pulled high for client, or device, mode. By default, the USB2 port is routed to a microUSB client port (P7) on the Processor Module. Alternatively, the AM572x USB2 signals are also available on the expansion connectors for use with an expansion board. To route the USB2 port to a custom daughter board on the expansion connector, remove R210 and R211 and populate R314 and R315 with 0-ohm resistors. To support host mode or OTG, VBUS 5V must be supplied by the custom daughter board.