Alcor AU9321 Product manual

AU9321
USB Compact Flash Card Reader
Technical Reference Manual
Revision 1.1
© 1997-2002 Alcor Micro Corp.
All Rights Reserved

Copyright Notice
Copyright 1997 - 2002
Alcor Micro Corp.
All Rights Reserved.
Trademark Acknowledgements
The company and product names mentioned in this document may be the trademarks or registered trademarks of their manufacturers.
Disclaimer
Alcor Micro Corp. reserves the right to change this product without prior notice.
Alcor Micro Corp. makes no warranty for the use of its products and bears no responsibility for any error that appear in this document.
Specifications are subject to change without prior notice.
Contact Information:
Web site: http://www.alcormicro.com/
Taiwan
Alcor Micro Corp.
4F-1, No 200 Kang Chien Rd., Nei Hu,
Taipei, Taiwan, R.O.C.
Phone: [phone]
Fax: [phone]
Santa Clara Office Los Angeles Office
2901 Tasman Drive, Suite 206 9400 Seventh St., Bldg. A2
Santa Clara, CA 95054 Rancho Cucamonga, CA 91730
USA USA
Phone: [phone] Phone: [phone]
Fax: [phone] Fax: [phone]

TABLE OF CONTENTS i
Table of Contents
1.0 Introduction-------------------------------------------------------------------------------------- 1
1.1 Description---------------------------------------------------------------------------------- 1
1.2 Features-------------------------------------------------------------------------------------- 1
2.0 Application Block Diagram----------------------------------------------------------------- 3
3.0 Pin Assignment-------------------------------------------------------------------------------- 5
4.0 System Architecture and Reference Design----------------------------------------- 7
4.1 AU9320 Block Diagram------------------------------------------------------------------ 7
4.2 Sample Schematics------------------------------------------------------------------------ 8
5.0 Electrical Characteristics------------------------------------------------------------------- 9
5.1 Recommended Operating Conditions------------------------------------------------- 9
5.2 General DC Characteristics ------------------------------------------------------------ 9
5.3 DC Electrical Characteristic for 3.3--------------------------------------------------- 9
5.4 Crystal Oscillator Circuit Setup for Characteristics ------------------------------ 10
5.5 ESD Test Results -------------------------------------------------------------------------- 11
5.6 Latch-Up Test Results ------------------------------------------------------------------- 12
6.0 Mechanical Information---------------------------------------------------------------------- 15

TABLE OF CONTENTS i

INTRODUCTION 1
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 2

APPLICATION BLOCK DIAGRAM 3
2.0 Application Block Diagram
Following is the application diagram of a typical flash memory card reader using AU9321. By
connecting the reader to a PC through USB bus, the AU9321 is acting as a bridge between the
flash memory card from digital camera, MP3 player, PDA or mobile phone and PC.
PCwithUSBHost Controller
USB Flash
Card Reader
Moble Phones
PDA
MP3 Player
Digital Camera
CF Cards
PC

APPLICATION BLOCK DIAGRAM 4

PIN ASSIGNMENT 5
3.0 Pin Assignment
The AU9321 is packed in 48-LQFP form factor. The following figure shows signal name for
each pin and the table in the following page describes each pin in detail.
1
2
3
5
4
6
7
8
10
9
11
33
32
31
29
30
34
46 45 44 43 42
12
35
36
28
27
26
25
41 40 39 38 374748
13 14 15 16 17 18 19 20 21 22 23 24
XTAL 1
XTAL 2
VCCA
GNDA
VCC2CF
VCC5V
VCC3V
USB_DM
USB_DP
RSTN
GNDIO
PDPD
EEP DATA
EEP CLK
CF
WEN
GND
CFD3
PDCFPD GND
GND
GND
GND
CFRST
CFWTN
CFOEN
CFAD9
VCCK
GNDK
CFAD3
CFAD2
CT2
IOWRN
IORDN
CFCDN
CFAD0 CFAD1
GPI0 GPI1 GPI2
GPO6
CTI
GPO7
CFD4 CFD7 CFD6 CFD5 CFD1 CFD0 CFD2

PIN ASSIGNMENT 6
Table 3-1. Pin Descriptions
Pin Name IO Type Description
1 XTAL1 Input Crystal Oscillator Input (12MHz)
2 XTAL2 Output Crystal Oscillator Output (12MHz)
3 VCCA Power Analog Vcc, Connected to 3.3V
4 GNDA Ground Connected to Ground
5 VCC2CF Power CF Power
6 VCC5V Power 5V Power Supply
7 VCC3V Output Regulated 3.3V out
8 USB_DM Input/Output USB D-
9 USB_DP Input/Output USB D+
10 RSTN Input Hardware reset (Active Low)
11 GNDIO Ground Ground
12 CFPD Power Power Down
13 EEPDATA Input/Output EEPROM Data
14 EEPCLK Output EEPROM Clock
15 CFWEN Output Arribute write enable
16 GND Ground Ground
17 CFD3 Input/Output Compact Flash Data 3
18 CFD4 Input/Output Compact Flash Data 4
19 CFD5 Input/Output Compact Flash Data 5
20 CFD6 Input/Output Compact Flash Data 6
21 CFD7 Input/Output Compact Flash Data 7
22 CFD0 Input/Output Compact Flash data 0
23 CFD1 Input/Output Compact Flash data 1
24 CFD2 Input/Output Compact Flash data 2
25 GND Ground Ground
26 GND Ground Ground
27 GND Ground Ground
28 GND Ground Ground
29 CFRST Output Compact Flash reset signal
30 CFWTN Input Compact Flash wait signal
31 CFOEN Output Compact Flash output enable
32 CFAD9 Output Compact Flash address 9
33 CFAD3 Output Compact Flash address 3
34 CFAD2 Output Compact Flash address 2
35 VCCK Power Kernel Vcc
36 GNDK Ground Kernel Ground
37 CT2 Connected to Ground
38 IOWRN Output Compact Flash I/O write signal
39 IORDN Output Compact Flash I/O read signal
40 CFCDN Input Compact Flash Card Detect
41 CFAD0 Output Compact Flash address 0
42 CFAD1 Output Compact Flash address 1
43 GPI0 Input General Purpose I (*1)
44 GPI1 Input General Purpose I (*1)
45 GPI2 Input General Purpose I
46 GPO6 Output General Purpose Output
47 GPO7 Output General Purpose Output, used for LED activity
48 CT1 Connected to Ground