Alcor Micro AU6475 Product manual

AU6475
USB2.0 Multi-LUN Flash Card Reader
Controller
Technical Reference Manual
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AU6475
USB2.0 Multi-LUN Flash Card Reader
Controller

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Co op py yr ri ig gh ht t
Copyright © 1997 - 2007. 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 from Alcor 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 error 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
Oct 2007 1.00W Official Release.
Dec 2007 1.01W Modify ”1.2 Features” and “Figure 4.1
AU6475 Block Diagram”
C
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 ShenZhenOffice
Alcor Micro, Corp. Rm.2407-08, Industrial Bank Building
4F, No 200 Kang Chien Rd., Nei Hu, No.4013, Shennan Road,
Taipei, Taiwan, R.O.C. ShenZhen,China. 518026
Phone: [phone] Phone: [phone]
Fax: [phone] Fax: [phone]
Santa Clara Office Los Angeles Office
2901 Tasman Drive, Suite 206 9070 Rancho Park Court
Santa Clara, CA 95054 Rancho Cucamonga, CA 91730
USA USA
Phone: [phone] Phone: [phone]
Fax: [phone] Fax: [phone]

<Memo>

i
Table of Contents
1. Introduction ............................................................ 1
1.1 Description...................................................................................1
1.2 Features........................................................................................1
2. Application Block Diagram ...................................2
3. Pin Assignment...................................................... 3
4. System Architecture and Reference Design ....... 7
4.1 AU6475 Block Diagram ...............................................................7
5. Electrical Characteristics...................................... 8
5.1 Absolute Maximum Ratings........................................................8
5.2 Recommended Operating Conditions .......................................8
5.3 General DC Characteristics........................................................8
5.4 DC Electrical Characteristics of 3.3V I/O Cells..........................9
5.5 USB Transceiver Characteristics...............................................9
5.6 Power Switch Feature .................................................................12
6. Mechanical Information......................................... 13
7. Abbreviations ......................................................... 14

ii
List of Figures
Figure 2.1 Block Diagram..................................................................2
Figure 3.1 AU6475 Pin Assignment Diagram..................................3
Figure 4.1 AU6475 Block Diagram ...................................................7
Figure 5.1 Built-in card power switch I-V curve..............................12
Figure 5.2 Card Detect Power-in Timing..........................................12
Figure 6.1 Mechanical Information Diagram ...................................13
List of Tables
Table 3.1 AU6475 Pin Descriptions..................................................4
Table 5.1 Absolute Maximum Ratings .............................................8
Table 5.2 Recommended Operating Conditions.............................8
Table 5.3 General DC Characteristics..............................................8
Table 5.4 DC Electrical Characteristics of 3.3V I/O Cells ...............9
Table 5.5 Electrical characteristics..................................................9
Table 5.6 Static characteristic：Digital pin .....................................10
Table 5.7 Static characteristic：Analog I/O pins（DP/DM）..........10
Table 5.8 Dynamic characteristic：Analog I/O pins（DP/DM）.....11

AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W 1
1. Introduction
1
1. .1 1 D De es sc cr ri ip pt ti io on n
The AU6475 is a single chip integrated USB 2.0 multimedia card reader controller that
enables PC/DVD/Printer to read/write various type of flash media cards. Flash media
cards such as CF, SMC, 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 AU6475 is maximized by implementing the latest and fastest card
specification available form the industry.
Especially, AU6475 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
 Support USB V2.0 specification and USB Device Class Definition for Mass
Storage, Bulk-Transport V1.0
 Support CF/MD/SD/MMC/MS/MS_Pro/MS_Duo/xD/SMC compatible flash
card
 Support SD1.1/SD2.0
 Support MMC4.1. MMC4.2. with 4-bit data bus.
 Support CF4.1 with True IDE mode 6.
 Compliant to xD 1.2 spec.
 Support MS 1.43, MSPRO 1.02, MSPRO-HG 1.01 with 4-bit data bus.
 Hardware DMA engine integrated for performance enhancement.
 Work with default driver from Windows ME/2000/XP/Vista and Mac OS X;
Windows 98/2000(SP1/SP2) and Mac OS 9 are supported by vendor driver
from Alcor.
 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
 Power switch integrated to reduce production BOM cost
 30MHz 8051 CPU
 53.3 and 3.31.8V regulators built in
 Runs at 12MHz crystal
 Available in 80-pin LQFP package

AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W
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2. Application Block Diagram
Following application diagram demonstrates a typical card reader using the AU6475
chip. By connecting the card reader to a desktop or notebook PC through USB bus,
the AU6475 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
PC with USB Host Controller
Moble Phones
PDA
MP3 Player
Digital Camera
CF/MS/MD/SMC/xD
/SD/MMC
PC
AU6475

AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W 3
3. Pin Assignment
AU6475 is available in 80-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 AU6475 Pin Assignment Diagram
Alcor Micro
AU6475
80-PIN LQFP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
2021 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
45
44
43
42
41
50
49
48
47
46
55
54
53
52
51
60
59
58
57
56
65 64 63 62 6170 69 68 67 6675 74 73 72 7180 79 78 77 76
CFDATA13
CFDATA5
CFDATA12
CFDATA4
CFDATA11
CFDATA3
CFCDN
CFDATA10
CFDATA9
CFDATA2
XI
XO
DM
DP
VS33P
CFDATA8
CFDATA1
CFDATA0
REXT
VD33P
CLED VDDU DEVCV MSBS XDCISN MSDATA1 VSSHM VDD VDDHM SD0WP SD0CDN AVDD5V V33 CF_V33 XDCDN SMRBN SD0DATA0 SD0DATA1 SMCDN
VDD33C
MS_V33
SD_V33
XD_V33
MSDATA2
MSDATA0
SD0CMD
XDCEN
SD0CLK
SMALE
SMCLE
XDWPN
SMDATA0
SMWRN
CFAD0
SMDATA1
CFAD2
CFWTN
CFAD1
VDDHM
CHIPRESETN
MSINS
VDD
MSCLK
MSDATA3
SD0DATA3
SMDATA2
SD0DATA2
CFRDN
CFWRN
CFDATA7
CFDATA14 CFDATA15
SMDATA4 SMDATA3 SMDATA6 SMDATA7 SMDATA5
SMRDN
CFRESETN
CFDATA6

AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W
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Table 3.1 AU6475 Pin Descriptions
Pin # Pin Name I/O Description
1 CFDATA13 I/O CF Data13
2 CFDATA5 I/O CF Data5
3 CFDATA12 I/O CF Data12
4 CFDATA4 I/O CF Data4
5 CFDATA11 I/O CF Data11
6 CFDATA3 I/O CF Data3
7 CFCDN I CF Card Detect
8 CFDATA10 I/O CF Data10
9 CFDATA9 I/O CF Data9
10 CFDATA2 I/O CF Data2
11 CFDATA8 I/O CF Data8
12 CFDATA1 I/O CF Data1
13 CFDATA0 I/O CF Data0
14 REXT I/O External Resistor 330 to Ground
15 VD33P PWR 3.3V Power Source for UTMI
16 DP I/O DP
17 DM I/O DM
18 VS33P GND Power Ground
19 XI I 12MHz Crystal Input
20 XO O 12MHz Crystal Output
21 VDDU PWR 1.8V Power Source for UTMI
22 CLED O
Card access LED.
No card : '1'
Any card inserted :'0'
Any card access : toggle between '1' & '0'
23 XDCISN I Disable xD CIS checking'0' for enable xD CIS
checking.'1' for disable xD CIS checking.[Default] '0'
24 DEVCV I USB current value.("1":high power to pass USB-IF;
"0":low power for bus-power hub compatibility)
25 MSBS O MS BS
26 MSDATA1 I/O MS Data1
27 VDDHM PWR IO Power 3.3V In
28 VSSHM GND 3.3V ground for IO pad
29 VDD PWR Core Power for 1.8V In
30 V33 PWR Band-gap 3.3V out
31 AVDD5V PWR 5V power from Vbus
32 CF_V33 PWR CF power 3.3V out
33 SD0WP I SD0 Write Protect

AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W 5
Pin # Pin Name I/O Description
34 SD0CDN I SD0 Card Detect
35 SD0DATA1 I/O SD Data1
36 SD0DATA0 I/O SD Data0
37 SMCDN I SMC Card Detect
38 XDCDN I xD Card Detect
39 SMRBN I xD/SMC RBN
40 SMRDN O xD/SMC RDN
41 VDD33C PWR Card power 3.3V input
42 XD_V33 PWR XD power 3.3V output
43 MS_V33 PWR MS power 3.3V output
44 SD_V33 PWR SD power 3.3V output
45 MSDATA0 I/O MS Data0
46 MSDATA2 I/O MS Data2
47 SD0CLK O SD CLK
48 SD0CMD I/O SD CMD
49 XDCEN O xD CEN
50 SMCLE O xD/SMC CLE
51 SMALE O xD/SMC ALE
52 SMWRN O xD/SMC WRN
53 XDWPN I/O xD/SMC WPN
54 SMDATA0 I/O xD/SMC Data0
55 SMDATA1 I/O xD/SMC Data1
56 CFAD0 O CF Adress0
57 CFAD1 O CF Adress1
58 CFAD2 O CF Adress2
59 CFWTN I CF WTN
60 CFRESETN O CF Reset
61 VDDHM IO Power 3.3V In
62 VDD PWR Core Power 1.8V In
63 CHIPRESETN I Chip Exteranl Reset:Low active
64 MSINS I MS Card Detect '0': Detected
'1': Undetected
65 MSDATA3 I/O MS Data3
66 MSCLK O MS CLK
67 SD0DATA2 I/O SD Data2
68 SD0DATA3 I/O SD Data3
69 SMDATA2 I/O xD/SMC Data2
70 SMDATA3 I/O xD/SMC Data3
71 SMDATA4 I/O xD/SMC Data4

AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W
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Pin Name I/O Description
72 SMDATA5 I/O xD/SMC Data5
73 SMDATA6 I/O xD/SMC Data6
74 SMDATA7 I/O xD/SMC Data7
75 CFWRN O CF WRN
76 CFRDN O CF RDN
77 CFDATA15 I/O CF Data15
78 CFDATA7 I/O CF Data7
79 CFDATA14 I/O CF Data14
80 CFDATA6 I/O CF Data6

4. System Architecture and Reference
Design
4
4. .1 1 A AU U6 64 47 75 5 B Bl lo oc ck k D Di ia ag gr ra am m
Figure 4.1 AU6475 Block Diagram
5V
1.8 V
1.8V / 3.3V
Voltage
Regulator
/Power Switch
12MHz
XTAL
USB
SIE RAM CF/MD/SMC/
SD/MMC/MS/
xD Control FIFO
Processor ArbitratorROM
XCVR
SD
MMC
MS
xD
SMC
CF
USB
Upstream
Port
AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W 7

5. Electrical Characteristics
5
5. .1 1 A Ab bs so ol lu ut te e M Ma ax xi im mu um m R Ra at ti in ng gs s
Table 5.1 Absolute Maximum Ratings
SYMBOL PARAMETER RATING UNITS
V5IN Power Supply -0.3 to 5.25 V
VDDH Power Supply -0.3 to 3.6 V
VIN Input Signal Voltage -0.3 to VDDH +0.3 V
TSTG Storage Temperature -40 to 150 OC
5.2 Recommended Operating Conditions
Table 5.2 Recommended Operating Conditions
SYMBOL PARAMETER MIN TYP MAX UNITS
V5IN Power Supply 4.75 5.0 5.25 V
VDDH Power Supply 3.0 3.3 3.6 V
VDD
V18 Digital Supply 1.62 1.8 1.98 V
VIN Input Signal Voltage 0 3.3 3.6 V
TOPR Operating Temperature 0 85 OC
5
5. .3 3 G Ge en ne er ra al l D DC C C Ch ha ar ra ac ct te er ri is st ti ic cs s
Table 5.3 General DC Characteristics
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IIN Input current No pull-up or
p
ull-down -10 ±1 10 µA
IOZ Tri-state leakage current -10 ±1 10 µA
CIN Input capacitance Pad Limit 2.8 ρF
COUT Output capacitance Pad Limit 2.8 ρF
CBID Bi-directional buffer
ca
p
acitance Pad Limit 2.8 ρF
AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W
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5
5. .4 4 D DC C E El le ec ct tr ri ic ca al l C Ch ha ar ra ac ct te er ri is st ti ic cs s o of f 3 3. .3 3V V I I/ /O O C Ce el ll ls
s
Table 5.4 DC Electrical Characteristics of 3.3V I/O Cells
Limits
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNIT
VDDH Power supply 3.3V I/O 3.0 3.3 3.6 V
Vil Input low voltage 0.8 V
Vih Input high voltage LVTTL 2.0 V
Vol Output low voltage ∣Iol∣=2~16mA 0.4 V
Voh Output high voltage ∣Ioh∣=2~16mA 2.4 V
Rpu Input pull-up resistance PU=high, PD=low 55 75 110 KΩ
Rpd Input pull-down resistance PU=low, PD=high 40 75 150 KΩ
Iin Input leakage current Vin= VDDH or 0 -10 ±1 10 μA
Ioz Tri-state output leakage
current -10 ±1 10 μA
5
5. .5 5 U US SB B T Tr ra an ns sc ce ei iv ve er r C Ch ha ar ra ac ct te er ri is st ti ic cs s
Table 5.5 Electrical characteristics
Symbol Parameter Conditions Min. Typ. Max. Unit
VD33P Analog supply Voltage 3.0 3.3 3.6 V
VDD
V18 Digital supply Voltage 1.62 1.8 1.98 V
ICC Operating supply current High speed operating
at 480 MHz 55 mA
AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W 9

Table 5.6 Static characteristic：Digital pin
Symbol Parameter Conditions Min. Typ. Max. Unit
Input levels
VIL Low-level input voltage 0.8 V
VIH High-level input voltage 2.0 V
Output levels
VOL Low-level output voltage 0.2 V
VOH High-level output voltage VDDH-0.2 V
Table 5.7 Static characteristic：Analog I/O pins（DP/DM）
Symbol Parameter Conditions Min. Typ. Max. Unit
USB2.0 Transceiver（HS）
Input Levels（differential receiver）
VHSDIFF High speed differential
input sensitivity
∣VI（DP）-VI（DM）∣
measured at the
connection as
application circuit
300 mV
VHSCM
High speed data signaling
common mode voltage
range -50 500 mV
Squelch detected 100 mV
VHSSQ High speed squelch
detection threshold No squelch detected 150 mV
Disconnection
detected 625 mV
VHSDSC High speed disconnection
detection threshold Disconnection not
detected 525 mV
Output Levels
VHSOI High speed idle level
output voltage(differential) -10 10 mV
VHSOL High speed low level
output voltage(differential) -10 10 mV
VHSOH High speed high level
output voltage(differential) -360 400 mV
VCHIRPJ Chirp-J output voltage
（differential）700 1100 mV
VCHIRPK Chirp-K output voltage
（differential）-900 -500 mV
Resistance
RDRV Driver output impedance Equivalent resistance
used as internal chip
only 3 6 9
Ω
AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W
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Overall resistance
including external
resistor 40.5 45 49.5
Termination
VTERM
Termination voltage for
pull-up resistor on pin
RPU 3.0 3.6 V
USB1.1 Transceiver（FS）
Input Levels（differential receiver）
VDI Differential input
sensitivity ∣VI（DP）-VI（DM）∣0.2 V
VCM Differential common
mode voltage 0.8 2.5 V
Input Levels（single-ended receivers）
VSE Single ended receiver
threshold 0.8 2.0 V
Output levels
VOL Low-level output voltage 0 0.3 V
VOH High-level output voltage 2.8 3.6 V
Table 5.8 Dynamic characteristic：Analog I/O pins（DP/DM）
Symbol Parameter Conditions Min. Typ. Max. Unit
Driver Characteristics
High-Speed Mode
tHSR High-speed differential
rise time 500 ps
tHSF High-speed differential fall
time 500 ps
Full-Speed Mode
tFR Rise time CL=50pF；10 to 90﹪
of∣VOH-VOL∣； 4 20 ns
tFF Fall time CL=50pF；90 to 10﹪
of∣VOH-VOL∣； 4 20 ns
tFRMA Differential rise/fall time
matching（tFR / tFF）Excluding the first
transition from idle
mode 90 110
％
VCRS Output signal crossover
voltage
Excluding the first
transition from idle
mode 1.3 2.0 V
AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W 11

5
5. .6 6 P Po ow we er r S Sw wi it tc ch h F Fe ea at tu ur re e
Card Power Output
3
3.1
3.2
3.3
0 100 200 300 400 500
Current (mA)
Voltage (V)
Others
CFPWR
Figure 5.1 Built-in card power switch I-V curve
3.3V+/- 0.3V
1ms to 10ms ( Depend
Load Capacitor )
CARD_POWER
CARD_DETECT
100ms + System
Polling timing
Figure 5.2 Card Detect Power-in Timing
AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W
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6. Mechanical Information
Figure 6.1 Mechanical Information Diagram
AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W 13

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
CF Compact Flash
MD Micro Drive
SMC SmartMedia Card
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.
AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W
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