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AU6475
USB2.0 Multi-LUN Flash Card Reader Controller
Technical Reference Manual
AU6475
USB2.0 Multi-LUN Flash Card Reader Controller
Copyright
Copyright (c) 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.
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.
Revision History
Date
Oct 2007 Dec 2007
Revision
1.00W 1.01W
Description
Official Release. Modify "1.2 Features" and AU6475 Block Diagram" "Figure 4.1
Contact Information:
Web site: http://www.alcormicro.com/
China ShenZhen Office Rm.2407-08, Industrial Bank Building No.4013, Shennan Road, ShenZhen,China. 518026 Phone: (0755) 8366-9039 Fax: (0755) 8366-9101 Los Angeles Office 9070 Rancho Park Court Rancho Cucamonga, CA 91730 USA Phone: (909) 483-8821 Fax: (909) 944-0464
Taiwan Alcor Micro, Corp. 4F, No 200 Kang Chien Rd., Nei Hu, Taipei, Taiwan, R.O.C. Phone: 886-2-8751-1984 Fax: 886-2-2659-7723 Santa Clara Office 2901 Tasman Drive, Suite 206 Santa Clara, CA 95054 USA Phone: (408) 845-9300 Fax: (408) 845-9086

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
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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 characteristicDigital pin .....................................10 Table 5.7 Static characteristicAnalog I/O pinsDP/DM..........10 Table 5.8 Dynamic characteristicAnalog I/O pinsDP/DM.....11
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1. Introduction
1.1 Description
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.
1.2 Features
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
Digital Camera
MP3 Player
PC with USB Host Controller
PDA
CF/MS/MD/SMC/xD /SD/MMC
AU6475
Moble Phones
PC
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AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W
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
CHIPRESETN
SD0DATA3
SD0DATA2
CFDATA14
CFDATA15
SMDATA2
MSDATA3
SMDATA7
SMDATA6
SMDATA5
SMDATA4
SMDATA3
CFDATA6
CFDATA13 CFDATA5 CFDATA12 CFDATA4 CFDATA11 CFDATA3 CFCDN CFDATA10 CFDATA9 CFDATA2 CFDATA8 CFDATA1 CFDATA0 REXT VD33P DP DM VS33P XI XO
1 2 3 4 5 6 7 8 9
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53
CFDATA7
VDDHM
CFWRN
CFRDN
MSCLK
MSINS
VDD
CFRESETN CFWTN CFAD2 CFAD1 CFAD0 SMDATA1 SMDATA0 XDWPN SMWRN SMALE SMCLE XDCEN SD0CMD SD0CLK MSDATA2 MSDATA0 SD_V33 MS_V33 XD_V33 VDD33C
10 11 12 13 14 15 16 17 18 19
Alcor Micro AU6475 80-PIN LQFP
52 51 50 49 48 47 46 45 44 43 42
20 41 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W
VDDU
CLED
XDCISN
DEVCV
MSBS
MSDATA1
VDDHM
VSSHM
VDD
V33
AVDD5V
CF_V33
SD0WP
SD0CDN
SD0DATA1
SD0DATA0
SMCDN
XDCDN
SMRBN
SMRDN
3
Table 3.1 AU6475 Pin Descriptions Pin #
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
Pin Name
CFDATA13 CFDATA5 CFDATA12 CFDATA4 CFDATA11 CFDATA3 CFCDN CFDATA10 CFDATA9 CFDATA2 CFDATA8 CFDATA1 CFDATA0 REXT VD33P DP DM VS33P XI XO VDDU CLED
I/O
I/O I/O I/O I/O I/O I/O I I/O I/O I/O I/O I/O I/O I/O PWR I/O I/O GND I O PWR O CF Data13 CF Data5 CF Data12 CF Data4 CF Data11 CF Data3 CF Card Detect CF Data10 CF Data9 CF Data2 CF Data8 CF Data1 CF Data0
Description
External Resistor 330 to Ground 3.3V Power Source for UTMI DP DM Power Ground 12MHz Crystal Input 12MHz Crystal Output 1.8V Power Source for UTMI Card access LED. No card : '1' Any card inserted :'0' Any card access : toggle between '1' & '0' Disable xD CIS checking'0' for enable xD CIS checking.'1' for disable xD CIS checking.[Default] '0' USB current value.("1":high power to pass USB-IF; "0":low power for bus-power hub compatibility) MS BS MS Data1 IO Power 3.3V In 3.3V ground for IO pad Core Power for 1.8V In Band-gap 3.3V out 5V power from Vbus CF power 3.3V out SD0 Write Protect
23 24 25 26 27 28 29 30 31 32 33
4
XDCISN DEVCV MSBS MSDATA1 VDDHM VSSHM VDD V33 AVDD5V CF_V33 SD0WP
I I O I/O PWR GND PWR PWR PWR PWR I
AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W
Pin #
34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71
Pin Name
SD0CDN SD0DATA1 SD0DATA0 SMCDN XDCDN SMRBN SMRDN VDD33C XD_V33 MS_V33 SD_V33 MSDATA0 MSDATA2 SD0CLK SD0CMD XDCEN SMCLE SMALE SMWRN XDWPN SMDATA0 SMDATA1 CFAD0 CFAD1 CFAD2 CFWTN CFRESETN VDDHM VDD CHIPRESETN MSINS MSDATA3 MSCLK SD0DATA2 SD0DATA3 SMDATA2 SMDATA3 SMDATA4
I/O
I I/O I/O I I I O PWR PWR PWR PWR I/O I/O O I/O O O O O I/O I/O I/O O O O I O PWR I I I/O O I/O I/O I/O I/O I/O SD0 Card Detect SD Data1 SD Data0 SMC Card Detect xD Card Detect xD/SMC RBN xD/SMC RDN
Description
Card power 3.3V input XD power 3.3V output MS power 3.3V output SD power 3.3V output MS Data0 MS Data2 SD CLK SD CMD xD CEN xD/SMC CLE xD/SMC ALE xD/SMC WRN xD/SMC WPN xD/SMC Data0 xD/SMC Data1 CF Adress0 CF Adress1 CF Adress2 CF WTN CF Reset IO Power 3.3V In Core Power 1.8V In Chip Exteranl Reset:Low active MS Card Detect '0': Detected '1': Undetected MS Data3 MS CLK SD Data2 SD Data3 xD/SMC Data2 xD/SMC Data3 xD/SMC Data4
5
AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W
Pin Name
72 73 74 75 76 77 78 79 80 SMDATA5 SMDATA6 SMDATA7 CFWRN CFRDN CFDATA15 CFDATA7 CFDATA14 CFDATA6
I/O
I/O I/O I/O O O I/O I/O I/O I/O xD/SMC Data5 xD/SMC Data6 xD/SMC Data7 CF WRN CF RDN CF Data15 CF Data7 CF Data14 CF Data6
Description
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AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W
4. System Architecture and Reference Design
4.1 AU6475 Block Diagram
Figure 4.1 AU6475 Block Diagram
USB
USB Upstream Port
XCVR
SIE
RAM
CF/MD/SMC/ SD/MMC/MS/ xD Control FIFO
SD MMC MS xD SMC CF
1.8 V
Processor
ROM
Arbitrator
1.8V / 3.3V Voltage Regulator /Power Switch
5V
12MHz XTAL
AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W
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5. Electrical Characteristics
5.1 Absolute Maximum Ratings
Table 5.1 Absolute Maximum Ratings SYMBOL
V5IN VDDH VIN TSTG
PARAMETER
Power Supply Power Supply Input Signal Voltage Storage Temperature
RATING
-0.3 to 5.25 -0.3 to 3.6 -0.3 to VDDH +0.3 -40 to 150
UNITS
V V V
O
C
5.2 Recommended Operating Conditions
Table 5.2 Recommended Operating Conditions SYMBOL
V5IN VDDH VDD V18 VIN TOPR
PARAMETER
Power Supply Power Supply Digital Supply Input Signal Voltage Operating Temperature
MIN
4.75 3.0 1.62 0 0
TYP
5.0 3.3 1.8 3.3
MAX
5.25 3.6 1.98 3.6 85
UNITS
V V V V
O
C
5.3 General DC Characteristics
Table 5.3 General DC Characteristics SYMBOL
IIN IOZ CIN COUT CBID
PARAMETER
Input current Tri-state leakage current Input capacitance Output capacitance Bi-directional buffer capacitance
CONDITIONS
No pull-up or pull-down
MIN
-10 -10
TYP
1 1 2.8 2.8 2.8
MAX
10 10
UNITS
A A F F F
Pad Limit Pad Limit Pad Limit
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AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W
5.4 DC Electrical Characteristics of 3.3V I/O Cells
Table 5.4 DC Electrical Characteristics of 3.3V I/O Cells SYMBOL
VDDH Vil Vih Vol Voh Rpu Rpd Iin Ioz
PARAMETER
Power supply Input low voltage
CONDITIONS
3.3V I/O
Limits
MIN
3.0
TYP
3.3
MAX
3.6 0.8
UNIT
V V V
LVTTL Input high voltage Output low voltage Output high voltage Input pull-up resistance Iol=2~16mA Ioh=2~16mA PU=high, PD=low 2.4 55 40 -10 -10 75 75 1 1 110 150 10 10 2.0 0.4
V V K K A A
Input pull-down resistance PU=low, PD=high Input leakage current Tri-state output leakage current Vin= VDDH or 0
5.5 USB Transceiver Characteristics
Table 5.5 Electrical characteristics Symbol
VD33P VDD V18 ICC
Parameter
Analog supply Voltage Digital supply Voltage Operating supply current
Conditions
Min.
3.0 1.62
Typ.
3.3 1.8
Max. Unit
3.6 1.98 55 V V mA
High speed operating at 480 MHz
AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W
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Table 5.6 Static characteristicDigital pin Symbol Parameter Conditions
Input levels VIL VIH Low-level input voltage High-level input voltage Output levels VOL VOH Low-level output voltage High-level output voltage VDDH-0.2 0.2 V V 2.0 0.8 V V
Min.
Typ.
Max.
Unit
Table 5.7 Static characteristicAnalog I/O pinsDP/DM Symbol Parameter Conditions Min. Typ. Max. Unit
USB2.0 TransceiverHS Input Levelsdifferential receiver VIDP-VIDM High speed differential measured at the 300 input sensitivity connection as application circuit High speed data signaling common mode voltage -50 range High speed squelch detection threshold High speed disconnection detection threshold Squelch detected No squelch detected Disconnection detected Disconnection not detected Output Levels 150 625 525
VHSDIFF
mV
VHSCM
500 100
mV mV mV mV mV
VHSSQ
VHSDSC
VHSOI VHSOL VHSOH VCHIRPJ VCHIRPK
High speed idle level output voltage(differential) High speed low level output voltage(differential) High speed high level output voltage(differential) Chirp-J output voltage differential Chirp-K output voltage differential Resistance Equivalent resistance Driver output impedance used as internal chip only
-10 -10 -360 700 -900
10 10 400 1100 -500
mV mV mV mV mV
RDRV
3
6
9
10
AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W
Overall resistance including external resistor Termination VTERM
40.5
45
49.5
VDI VCM
VSE VOL VOH
Termination voltage for pull-up resistor on pin 3.0 RPU USB1.1 TransceiverFS Input Levelsdifferential receiver Differential input VIDP-VIDM 0.2 sensitivity Differential common 0.8 mode voltage Input Levelssingle-ended receivers Single ended receiver 0.8 threshold Output levels Low-level output voltage High-level output voltage 0 2.8
3.6
V
V 2.5 V
2.0 0.3 3.6
V V V
Table 5.8 Dynamic characteristicAnalog I/O pinsDP/DM Symbol Parameter Conditions
Driver Characteristics High-Speed Mode tHSR tHSF High-speed differential rise time High-speed differential fall time Full-Speed Mode tFR tFF tFRMA CL=50pF10 to 90 ofVOH-VOL CL=50pF90 to 10 Fall time ofVOH-VOL Excluding the first Differential rise/fall time transition from idle matchingtFR / tFF mode Excluding the first Output signal crossover transition from idle voltage mode Rise time 4 4 90 20 20 110 ns ns 500 500 ps ps
Min.
Typ.
Max. Unit
VCRS
1.3
2.0
V
AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W
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5.6 Power Switch Feature
Card Power Output 3.3
Voltage (V)
3.2 Others CFPWR 3.1
3 0 100 200 300 400 500 Current (mA)
Figure 5.1 Built-in card power switch I-V curve
1ms to 10ms ( Depend Load Capacitor )
3.3V+/- 0.3V
CARD_POWER
100ms + System Polling timing
CARD_DETECT
Figure 5.2 Card Detect Power-in Timing
12
AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W
6. Mechanical Information
Figure 6.1 Mechanical Information Diagram
AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W
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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 CF MD SMC MS SD MMC UTMI Serial Interface Engine Compact Flash Micro Drive SmartMedia Card Memory Stick Secure Digital Multimedia Card 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.
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AU6475 USB2.0 Multi-LUN Flash Memory Card Reader V1.01W

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