Section 18 Usb Host Controller; Introduction; Device Description / Purpose; Reference Information - Hitachi HD64465 User Manual

18.1

Introduction

18.1.1

Device Description / Purpose

This USB Host Controller is a PCI-based implementation of the Universal Serial Bus (USB) 1.0
specification utilizing the OpenHCI standard developed by Compaq, Microsoft, and National
Semiconductor. It contains an integrated Root Hub with two USB ports, PCI interface, and USB
Host Controller. Keyboard and Mouse legacy support are also included for DOS compatibility with
USB devices. This USB Host Controller supports limited number of endpoints (not full support)
with limited buffer size (4 kbyte).
18.1.2

Reference Information

• "USB Specification", Version 1.0
• "OpenHCI Specification", Version 1.0
• "PCI Specification", Version 2.1

Section 18 USB Host Controller

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