Alcor AU9321 Technisches Referenzhandbuch - Seite 5

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1.0 Introduction

1.1 Description

The AU9321 is a single chip integrated USB Compact Flash (CF) card reader controller. It

can be used as a removable storage disk in enormous data exchange applications between PC

and PC or PC and various consumer electronic devices.

The AU9321 can read of CF card's contents created by handheld consumer electronic devices

such as digital camera, MP3 player, PDA and mobile phone... etc. It provides a faster and

convenient way of data transfer scheme to meet the emerging need of a data exchange center

between PC and various consumer devices. With AU9320, users' experience will be further

enhanced by the Plug-and-Play nature built into latest operation systems such as Windows

2000/XP and Mac OS X.

Because of the multiple sectors transfer up to 4G bytes and the single chip integration,

AU9321 will be the most powerful and cost efficient CF card reader controller solution in the

market.

1.2 Features

Fully compliant with USB v1.1 specification and USB Device Class Definition for

Mass Storage, Bulk-Transport v1.0

Fully compliant with Compact Flash (CF) v1.4 Specification.

Work with default driver from Windows ME, Windows 2000, Windows XP, Mac

OS 9.1, and Mac OS X. Windows 98 is supported by vendor driver from Alcor.

Ping-pong FIFO implementation for concurrent bus operation

Support multiple sectors transfer up to 4G byte to optimize performance

Support optional external EEPROM for USB VID, PID and string customization

Capable of handling 8 sets of built-in PID, VID and strings to minimize inventory

control and improve lead production lead time

LED for bus activity monitoring

Integrated power switch and power management circuit to meet USB 500uA power

consumption during suspend with CF card in the slot.

Runs at 12MHz, built-in 48 MHz PLL

Built-in 3.3V regulator

48-pin LQFP package

INTRODUCTION