Features Of The Usb Otg Controller - Altera cyclone V Technical Reference

18-2

Features of the USB OTG Controller

Related Information
http://www.usb.org/home
Additional information is available in the On The Go and Embedded Host Supplement to the USB
Revision 2.0 Specification, which you can download from the USB Implementers Forum website
Features of the USB OTG Controller
The USB OTG controller has the following USB-specific features:
• Complies with both Revision 1.3 and Revision 2.0 of the On The Go and Embedded Host Supplement to
the USB Revision 2.0 Specification
• Supports software-configurable modes of operation between OTG 1.3 and OTG 2.0
• Can operate in Host or Device mode
• Supports multi-point applications with hub and split support
• Supports all USB 2.0 speeds:
• High speed (HS, 480-Mbps)
• Full speed (FS, 12-Mbps)
• Low speed (LS, 1.5-Mbps)
Note: In host mode, all speeds are supported. However, in device mode, only high speed and full
• Integrated scatter-gather DMA supports moving data between memory and the controller
• Supports USB 2.0 in ULPI mode
• Supports all USB transaction types:
• Control transfers
• Bulk transfers
• Isochronous transfers
• Interrupts
• Supports automatic ping capability
• Supports Session Request Protocol (SRP) and Host Negotiation Protocol (HNP)
• Supports suspend, resume, and remote wake
• Supports up to 16 host channels
Note: In host mode, when the number of device endpoints is greater than the number of host
channels, software can reprogram the channels to support up to 127 devices, each having 32
endpoints (IN + OUT), for a maximum of 4,064 endpoints.
• Supports up to 16 bidirectional endpoints, including control endpoint 0
Note: Only seven periodic device IN endpoints are supported.
• Supports a generic root hub
• Performs transaction scheduling in hardware
Altera Corporation
speed are supported.
cv_5v4
2016.10.28
USB 2.0 OTG Controller
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