3.2.2.21. USB

3.2.2.21.1. 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.

3.2.2.21.2. TI SoC Integration

The USB subsystem is integrated in TI AM68A devices.

3.2.2.21.3. EVM

The following diagram depicts USB integration in AM68A EVM.

../../../../../_images/usb_j721s2_evm.png

The EVM supports one USB3.1 Gen1 Type C interface, which can function as DFP, UFP, or DRP. The EVM supports two USB2.0 Type A interfaces via an on-board USB hub. These ports can only function as Host.

Note

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

The processor supports a single USB interface. Therefore, the user must configure for either the USB3.1 Type C interface or the USB2.0 Type A interface. Both cannot be operated simultaneously.