3.2.2.23. USB¶

3.2.2.23.1. Introduction¶

The USB subsystem has a SuperSpeed (SS) USB3.1 Gen1 Dual-Role-Device (DRD) controller with on-chip SS (USB3.1 Gen1) PHY and HS/FS/LS (USB2.0) PHY.

Note

LowSpeed (LS) is only supported in host mode.

3.2.2.23.2. TI SoC Integration¶

The USB subsystem is integrated in TI AM69 devices.

3.2.2.23.3. EVM¶

The following diagram depicts USB integration in J721E EVM.

../../../../../_images/usb_j721e_evm.png

USB0 controller operates in super-speed dual role mode and is available on a Type-C connector.

Note

The Type-C config DIP switch (SW3) must be set for DRP (Dual-role-Port) operation. SW3.3 = OFF, SW3.4 = ON.

USB1 operates in high-speed host mode and is connected to an onboard 4-port HUB. Of the 4 hub ports, 2 ports are available on stacked Type-A connectors, 1 is available on J2 header for USB-WiFi/Bluetooth adapter and 1 is available on the EVM EXPANSION connector J51.

USB2 controller is not present on J721E SoC so micro-AB 3.0 connector is not usable.