NUC505-YO2G datasheet(101/130 Pages) NUVOTON

101 / 130 page

NUC505

July. 26, 2018

Page 101 of 130

Rev.1.08

USB 1.1 Host Controller (USBH)

6.16

6.16.1 Overview

The NUC505 series is equipped with one USB 1.1 Host Controller (USBH) that supports Open

Host Controller Interface (OpenHCI, OHCI) Specification and register-level description of a host

controller to manage the devices and data transfer of Universal Serial Bus (USB).

The USBH supports an integrated Root Hub with a USB port, a DMA for real-time data transfer

between system memory and USB bus, port power control and port overcurrent detection.

The USBH is responsible for detecting the connect and disconnect of USB devices, managing

data transfer, collecting status and activity of USB bus, providing power control and detecting

overcurrent of attached USB devices.

6.16.2 Features



Supports Universal Serial Bus (USB) Specification Revision 1.1.



Supports Open Host Controller Interface (OpenHCI) Specification Revision 1.0.



Supports both full-speed (12Mbps) and low-speed (1.5Mbps) USB devices.



Supports Control, Bulk, Interrupt and Isochronous transfers.



Supports an integrated Root Hub.



Supports one USB host port in LQFP48 or LQFP64 and two USB host ports in QFN88



Supports port power control and port overcurrent detection.



Supports DMA for real-time data transfer.

NUC505-YO2G 데이터시트(PDF) 101 Page - Nuvoton Technology Corporation