A13 datasheet(48/55 Pages) ETC2

48 / 55 page

Allwinner Technology CO., Ltd.

A13 Datasheet v1.30

December 10, 2012

20.

USB HOST Controller

20.1.

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.

It features:



Include an internal DMA Controller for data transfer with memory.



Comply with Enhanced Host Controller Interface (EHCI) Specification, Version 1.0, and the

Open Host Controller Interface (OHCI) Specification, Version 1.0a.



Support High-Speed (HS, 480-Mbps), Full-Speed (FS, 12-Mbps), and Low-Speed (LS,

1.5-Mbps) Device.



Support only one USB Root Port shared between EHCI and OHCI

20.2.

USB HOST Controller Signal Description

Signal Name

Description

Type

UDM1

USB1 HOST DM

UDP1

USB1 HOST DP

Table 20. USB Host Controller Signal Description

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