Owners manual

Interfaces

Figure 8-6. USB OTG Controller Block Diagram

8.5.2. USB Host Controller

8.5.2.1. Overview

USB Host Controller is fully compliant with the USB 2.0 specification, Enhanced Host Controller Interface (EHCI)

Specification, Revision 1.0, and the Open Host Controller Interface (OHCI) Specification Release 1.0a. The

controller supports high-speed, 480-Mbps transfers (40 times faster than USB 1.1 full-speed mode) using an

EHCI Host Controller, as well as full and low speeds through one or more integrated OHCI Host Controllers.

The USB host controller includes the following features:

 Supports industry-standard AMBA High-Performance Bus (AHB) and it is fully compliant with the AMBA Specification,

Revision 2.0.

 Supports 32-bit Little Endian AMBA AHB Slave Bus for Register Access.

 Supports 32-bit Little Endian AMBA AHB Master Bus for Memory Access.

 Including an internal DMA Controller for data transfer with memory.

 Complies with Enhanced Host Controller Interface (EHCI) Specification, Version 1.0, and the Open Host Controller

Interface (OHCI) Specification, Version 1.0a.

 Supports High-Speed (HS, 480-Mbps), Full-Speed (FS, 12-Mbps), and Low-Speed (LS, 1.5-Mbps) Device.

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