Alcor Micro AU6481-GFL Product manual

ALCOR MICRO, CORP
AU6481-GFL
USB2.0 Single-LUN Flash Card
Reader Controller
Technical Reference Manual
Rev. 1.00
Dec, 2012

AU6481-GFL
USB2.0 Single-LUN Flash Card
Reader Controller
Rev. 1.00
Dec, 2012

AU6481-GFL USB2.0 Single-LUN Flash Card Reader Controller V1.00
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Co op py yr ri ig gh ht t
Copyright © 1997 – 2012. Alcor Micro, Corp. All Rights Reserved. No part of this data
sheet may be reproduced, transmitted, transcribed, stored in a retrieval system or
translated into any language or computer language, in any form or by any means,
electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without prior
written permission fromAlcor Micro, Corp.
T
Tr ra ad de em ma ar rk k A Ac ck kn no ow wl le ed dg ge em me en nt ts s
The company and product names mentioned in this document may be the trademarks
or registered trademarks of their manufacturers.
D
Di is sc cl la ai im me er r
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 errors that appear in this document. Specifications are subject to change
without prior notice.
R
Re ev vi is si io on n H Hi is st to or ry y
Date Revision Description
Dec, 2012 1.00 Official Release

AU6481-GFL USB2.0 Single-LUN Flash Card Reader Controller V1.00
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Co on nt ta ac ct t I In nf fo or rm ma at ti io on n: :
Web site: http://www.alcormicro.com/
Taiwan China ShenZhen Office
Alcor Micro, Corp. 23F.,Desay Technology Building,
9F., No.66, Sanchong Rd., 1st South Road of High-Tech,
Nangang Dist., Taipei City 115, Southern District of Scientific park,
Taiwan, R.O.C. Nanshan District, SZ, China. 518027
Phone: [phone] Phone: [phone]
Fax: [phone] Fax: [phone]
Los Angeles Office
8351 Elm Ave, Suite 103
Rancho Cucamonga, CA 91730
Phone: [phone]
Fax: [phone]

AU6481-GFL USB2.0 Single-LUN Flash Card Reader Controller V1.00
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Table of Contents
1. Introduction ............................................................ 5
1.1 Description...................................................................................5
1.2 Features........................................................................................5
2. Application Block Diagram ................................... 7
3. Pin Assignment...................................................... 8
4. System Architecture and Reference Design ....... 11
4.1 AU6481 Block Diagram ...............................................................11
5. Electrical Characteristics ...................................... 12
5.1 Power Switch Feature .................................................................12
6. Mechanical Information......................................... 13
7. Abbreviations ......................................................... 14

AU6481-GFL USB2.0 Single-LUN Flash Card Reader Controller V1.00
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ist of Figures
Figure 2.1 Block Diagram.......................................................................7
Figure 3.1 AU6481 Pin Assignment Diagram........................................8
Figure 4.1 AU6481 Block Diagram.........................................................11
Figure 6.1 Mechanical Information Diagram.........................................13
ist of Tables
Table 3.1 AU6481 Pin Descriptions.......................................................9
Table 5.1 Card Power Output Capacity.................................................12

AU6481-GFL USB2.0 Single-LUN Flash Card Reader Controller V1.00
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1. Introduction
1
1. .1 1 D De es sc cr ri ip pt ti io on n
The AU6481 is a single chip integrated USB 2.0 multimedia card reader controller that
enables PC/DVD/Printer to read/write various types of flash media cards. Flash media
cards such as CF, xD, SD, MMC, Memory Stick are widely used in digital camera, cell
phone, PDA and MP3 player to store digital photos and compressed music.
Performance of AU6481 is maximized by implementing the latest and fastest card
specification available form the industry.
Especially, AU6481 is designed with the high performance characteristic in flash card
I/O speed. Users can easy and fast transfer the digital content among the different
flash card.
1
1. .2 2 F Fe ea at tu ur re es s
I
In nt te er rf fa ac ce e
Support USB V2.0 specification and USB Device Class Definition for Mass
Storage, Bulk-Transport V1.0
M
Me em mo or ry y C Ca ar rd d T Ty yp pe e S Su up pp po or rt t
Support CompactFlash spec up to ver. 6.0 Ultra DMA mode.
Support SD spec up to ver. 4.00
- Support SD3.0 SDR-104, SDR-50 and DDR 50.
- Support high capacity up to 2TB
- Support CPRM Function
Support MMC spec up to ver. 4.4.
Support Memory Stick spec up to ver. 1.43.
Support Memory Stick PRO spec up to ver. 1.05-00.
- Support MS Formatter function
- Support Magic Gate function.
Support Memory Stick PRO Duo spec up to ver. 1.11-00.
Support Memory Stick PRO-HG spec up to ver. 1.03-00.
Support Memory Stick XC Duo Format Specification version1.00-00
- Support high capacity up to 2TB

AU6481-GFL USB2.0 Single-LUN Flash Card Reader Controller V1.00
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- Support power class 0, 1, 2
Support xD Picture Card specification up to ver. 1.2.
O
Ot th he er rs s
Hardware DMA engine integrated for performance enhancement.
Work with default driver from Windows ME/2000/XP/Vista/Windows 7 and Mac
OS X; Vendor device driver fromAlcor Micro are available to run under Windows
98 and Mac 10.x.
Ping-pong FIFO implementation for concurrent bus operation
Support multiple sectors transfer optimize performance
Support slot-to-slot read/write operation
Support Dynamic Icon Utility
Support LED for bus operating indication. Blinking rate is 1Hz and 50% duty
cycle
Power switch integrated to reduce production BOM cost
30MHz 8051 CPU
Built in 5V to 3.3V and 3.3V to 1.8V regulator.
Built in resonator clock source input.
Available in 48-pin LQFP package.

AU6481-GFL USB2.0 Single-LUN Flash Card Reader Controller V1.00
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2. Application Block Diagram
Following application diagram demonstrates a typical card reader using the AU6481
chip. By connecting the card reader to a desktop or notebook PC through USB bus,
the AU6481 becomes a bus-powered, high speed USB card reader, which can be
used as a bridge for data transfer between Desktop PC and Notebook PC.
Figure 2.1 Block Diagram
AU6481
SD/MMC/xD
/CF/MD/MS
PC with USB Host Controller
Player
PDA
Moble Phones
PC
Digital Camera

AU6481-GFL USB2.0 Single-LUN Flash Card Reader Controller V1.00
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3. Pin Assignment
AU6481 is available in 48-pin LQFP package. Below diagram shows signal name of
each pin and table in the following page describes each pin in detail
Figure 3.1 AU6481 Pin Assignment Diagram
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
CFDMARQ_SD0D3_MSD7
CFAD2_SD0D2_MSCLK
REXT
V33AREG
DP
DM
VSSAREG
CFCDN
CFWTN
CFRESETN_XDD7
GPI 7
XDCDN EEDAT
VDD33
AGND5V
AVDD5V
I _V33
C1_V33
V18
MSINS
CFD11_XDRDN
CFD3_XDRBN
CFD12_XDCLE
CFD4_XDCEN
EECLK CFD6_XDWPN CFD14_XDD0
CFD5_XDALE
GPI 6 CFD13_XDWRN CFD15_XDD2
CFCE1N_XDD3
CFWRN_XDD6 CFCE2N_XDD4 CFD7_XDD1 CFRDN_XDD5
VDD33
CFD10_SD0WP_MSBS
SD0CDN
CFD9_SD0D1_MSD5 CFD2_SD0D0_MSD1 CFD8_SD0D7_MSD4 CFD1_SD0D6_MSD0
CFD0_SD0CLK_NC
I _V33
CFAD0_SD0D5_MSD2 CFAD1_SD0D4_MSD3
CFDMACKN_SD0CMD_MSD6
ALCOR MICRO
48PIN LQFP
AU6481-GFL

AU6481-GFL USB2.0 Single-LUN Flash Card Reader Controller V1.00
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Table 3.1 AU6481 Pin Descriptions
Pin # Pin Name I/O Description
1 CFDMARQ_SD0D3_MSD7 I/O CF DMARQ/ SD0 DATA3/ MS DATA7
2 CFAD2_SD0D2_MSCLK I/O CF address2 /SD0 DATA2/ MS CLK
3 REXT I/O External Resistor 330 to Ground
4 V33AREG I 3.3V in for USB 2.0 PHY
5 DP I/O DP
6 DM I/O DM
7 VSSAREG I 3.3V ground for USB 2.0 PHY
8 CFCDN I CF card detect, low active
9 CFWTN O CF WTN
10 CFRESETN_XDD7 O CF reset, low active/ XD DATA7
11 GPIO7 I/O LED for Card operating
12 XDCDN I xD card detect, low active
13 CFWRN_XDD6 O CF WRN/ XD DATA6
14 CFRDN_XDD5 O CF RDN/ XD DATA5
15 CFCE2N_XDD4 I/O CF CE2N/ XD DATA4
16 CFCE1N_XDD3 I/O CF CE1N / XD DATA 3
17 CFD15_XDD2 I/O CF DATA15/ XD DATA2
18 CFD7_XDD1 I/O CF DATA7/ XD DATA 1
19 CFD14_XDD0 I/O CF DATA14/ XD DATA 0
20 CFD6_XDWPN I/O CF DATA6/ XD WPN
21 CFD13_XDWRN I/O CF DATA13/ XD WRN
22 CFD5_XDALE I/O CF DATA5/ XD ALE
23 GPIO6 I/O Reserved
24 EECLK O EEPROM CLK
25 EEDAT I/O EEPROM DATA
26 VDD33 I 3.3V output
27 AGND5V I Regulator Ground
28 AVDD5V I Regulator 5V In
29 IO_V33 O 1.8v / 3.3v for SD pad power
30 C1_V33 O LUN 1 3.3V card power
31 V18 O V18 out for LDO

AU6481-GFL USB2.0 Single-LUN Flash Card Reader Controller V1.00
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Pin # Pin Name I/O Description
32 MSINS I MS card detect, low active.
33 CFD12_XDCLE I/O CF DATA12/ XD CLE
34 CFD4_XDCEN I/O CF DATA4/ XD CEN
35 CFD11_XDRDN I/O CF DATA11/ XD RDN
36 CFD3_XDRBN O CF DATA3/ XD RBN
37 VDD33 I Pad 3.3V power
38 CFD10_SD0WP_MSBS I CF DATA10/SD0WP/ MS BS
39 SD0CDN I SD card detect, low active
40 CFD9_SD0D1_MSD5 I/O CF DATA9/ SD0 DATA1/ MS DATA5
41 CFD2_SD0D0_MSD1 I/O CF DATA2/SD0 DATA0/ MS DATA1
42 CFD8_SD0D7_MSD4 I/O CF DATA8/SD0 DATA7/ MS DATA4
43 CFD1_SD0D6_MSD0 I/O CF DATA1/SD0 DATA6/ MS DATA0
44 CFD0_SD0CLK_NC O CF DATA0/SD0 CLK/ NC
45 IO_V33 I SD pad power 1.8v/3.3v
46 CFAD0_SD0D5_MSD2 I/O CF address0/SD0 DATA5/ MS DATA2
47 CFDMACKN_SD0CMD_
MSD6 I/O CF DMACKN/SD0 CMD/ MS DATA6
48 CFAD1_SD0D4_MSD3 I/O CF address1/SD0 DATA4/ MS DATA3

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4. System Architecture and Reference
Design
4
4. .1 1 A AU U6 64 48 81 1 B Bl lo oc ck k D Di ia ag gr ra am m
Figure 4.1 AU6481 Block Diagram
USB SIE RAM Flash Card
Engin
XCVR
Proc ssor Arbitrator ROM
1 2MHz XTAL
clock input
5V/3.3V
Voltag
R gulator
USB
Upstr am
Port
5V Input
3.3V/1.8V
Voltag
R gulator
3.3V Pow r
Switch
Flash
Card
Card
Pow r

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5. Electrical Characteristics
5
5. .1 1 P Po ow we er r S Sw wi it tc ch h F Fe ea at tu ur re e
Table 5.1 Card Power Output Capacity
UN Max. Iout Min. Vout Reference Note
SD 400mA 3.14V SD spec. 3.01
MMC spec. 4.4 Only support SD/MMC with default power class
MS 400mA 3.14V MS-Pro spec. 1.03 Only support power
class 0
CF 500mA 3.14V CF spec. 6.0
xD 100mA 3.14V xD spec. 6.0
uSD/M2 400mA 3.14V SD spec. 3.01/ MS-Pro
spec. 1.03

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6. Mechanical Information
Figure 6.1 Mechanical Information Diagram

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7. Abbreviations
In this chapter some of the terms and abbreviations used throughout the technical
reference manual are listed as follows.
SIE Serial Interface Engine
xD xD-Picture Card
CF Compact Flash
MD Micro Drive
MS Memory Stick
SD Secure Digital
MMC Multimedia Card
UTMI USB Transceiver Macrocell Interface
About Alcor Micro, Corp.
Alcor Micro, Corp. designs, develops and markets highly integrated and advanced
peripheral semiconductor, and software driver solutions for the personal computer
and consumer electronics markets worldwide. We specialize in USB solutions and
focus on emerging technology such as USB and IEEE 1394. The company offers a
range of semiconductors including controllers for USB hub, integrated keyboard/USB
hub and USB Flash memory card reader…etc. Alcor Micro, Corp. is based in Taipei,
Taiwan, with sales offices in Taipei, Japan, Korea and California. Alcor Micro is
distinguished by its ability to provide innovative solutions for spec-driven products.
Innovations like single chip solutions for traditional multiple chip products and
on-board voltage regulators enable the company to provide cost-efficiency solutions
for the computer peripheral device OEM customers worldwide.