USB 2.0 High-Speed functionality is supplied by an enhanced host controller implementing the Enhanced Host Controller Interface (EHCI). Full- and Low-Speed functionality (USB 2.0 and USB 1.1) is ...
Behind that ubiquity is a protocol layer called HCI, or Host Controller Interface ... be done with an ESP32 microcontroller through its USB interface. The linked repository doesn’t tell us ...
The USB 2.0 host controller exposes an AXI or AHB Master interface for the data-path, and an AHB slave interface for register access. Optionally, an interoperate-proven third party PCIe-AXI/AHB bridge ...