AU6438

AU6438-JBS USB2.0 Single-LUN Flash Card Reader Controller Technical Reference Manual Rev. 1.00 Jul. 2010 AU6438-JBS USB2.0 Single-LUN Flash Card Reader Controller Rev. 1.00 Jul. 2010 AU6438-JBS USB2.0 Single-LUN Flash Card Reader V1.00 Copyright Copyright © 1997 – 2010. 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 errors that appear in this document. Specifications are subject to change without prior notice. Revision History Date Revision Description Sep 2009 0.90 Feb 2010 0.91 Mar 2010 0.92 Jul 2010 1.00 Preliminary Release Update “1.1 Description and 1.2 Features” Update “Figure 4.1 AU6438 Block Diagram and 1.2 Features ” Modify “5. Electrical Characteristics" Contact Information: Web site: http://www.alcormicro.com/ Taiwan Alcor Micro, Corp. 9F., No.66, Sanchong Rd., Nangang District, Taipei 115, Taiwan, R.O.C. Phone: 886-2-2653-5000 Fax: 886-2-2786-8567 San Jose Office 2025 Gateway Place, Suite 335 San Jose, CA 95110 USA Phone: (408) 453-9530 Fax: (408) 453-9523 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 8351 Elm Ave, Suite 103 Rancho Cucamonga, CA 91730 USA Phone: (909) 483-8821 Fax: (909) 944-0464 AU6438-JBS USB2.0 Single-LUN Flash Card Reader V1.00 AU6438-JBS USB2.0 Single-LUN Flash Card Reader V1.00 Table of Contents 1. Introduction ............................................................ 1 1.1 Description...................................................................................1 1.2 Features........................................................................................1 2. Application Block Diagram ................................... 3 3. Pin Assignment ...................................................... 4 4. System Architecture and Reference Design ....... 6 4.1 AU6438 Block Diagram ...............................................................6 5. Electrical Characteristics ...................................... 7 5.1 Absolute Maximum Ratings........................................................7 5.2 Recommended Operating Conditions .......................................7 5.3 General DC Characteristics ........................................................7 5.4 DC Electrical Characteristics of 3.3V I/O Cells..........................8 5.5 USB Transceiver Characteristics ...............................................8 5.6 Power Switch Feature .................................................................11 5.7 Chip Reset Timing .......................................................................12 6. Mechanical Information ......................................... 13 7. Abbreviations ......................................................... 14 i AU6438-JBS USB2.0 Single-LUN Flash Card Reader V1.00 List of Figures Figure 2.1 Block Diagram .......................................................................3 Figure 3.1 AU6438 Pin Assignment Diagram........................................4 Figure 4.1 AU6438 Block Diagram.........................................................6 Figure 5.1 Card Power Switch Output Capacity ...................................11 Figure 5.2 Card Detect Power-in Timing ...............................................11 Figure 5.3 Chip Reset Timing.................................................................12 Figure 6.1 Mechanical Information Diagram.........................................13 List of Tables Table 3.1 AU6438 Pin Descriptions .......................................................5 Table 5.1 Absolute Maximum Ratings...................................................7 Table 5.2 Recommended Operating Conditions ..................................7 Table 5.3 General DC Characteristics ...................................................7 Table 5.4 DC Electrical Characteristics of 3.3V I/O Cells.....................8 Table 5.5 Electrical characteristics .......................................................8 Table 5.6 Static characteristic： ：Digital pin...........................................9 Table 5.7 Static characteristic： ：Analog I/O pins（ （DP/DM） ） ...............9 Table 5.8 Dynamic characteristic： ：Analog I/O pins（ （DP/DM） ） ..........10 ii AU6438-JBS USB2.0 Single-LUN Flash Card Reader V1.00 1. Introduction 1.1 Description The AU6438 is designed to deliver outstanding performance for data transmission between USB and compatible flash card interface. It supports USB 2.0 high-speed transferring to various types of flash media cards such as SD, MMC and MS. Besides, the AU6438 supports several operating systems, including MS Windows, LINUX and Mac OS. The design of 2-in-1 combo single slot makes the AU6438 more attractive and optimal. The AU6438 integrates a high performance 8051 CPU as well as a splendidly efficient DMA hardware engine and internal 5V to 3.3V/3.3V to 1.8V regulators. The AU6438 provides manufacturers not merely BOM cost saving with the minimal numbers of components needed on the PCB but also smaller circuit board with the 28-pin SSOP (150mil) package. In addition to high-speed 8051 CPU embedded and DMA hardware engine integrated, the AU6438 is fully compliant with USB Device Class Definition for Mass Storage and Bulk-Transport V1.0.Combination with these features, the AU6438 provides a completely ultra high performance USB2.0 card reader solution in a single chip. AU6438 maximizes performance with the latest and fastest flash card specification available from the industry. Based on the features of low pin count and high performance characteristic, AU6438 supports a wide range of flash card reader applications used to digital camera, MP3 players, cell phone, PDA, camcorder, GPS device and so on to store many types of data, such as digital map, digital photos and compressed music. 1.2 Features
General
Fully compatible with USB2.0 High Speed and backward compatible with USB1.1 specifications
Supports multiple flash card interfaces, including SD/MMC/MS.
Supports single LUN
Supports both Windows and Mac OS -Default Mass Storage Class driver comes from Windows ME/2000/XP/Vista/Windows 7 and Mac OS -Windows 98 is supported by vendor driver from Alcor
28-pin SSOP lead-free/Halogen-free/RoHS compliant package is available.
Compliance
Complies with USB Device Class Definition for Mass Storage and Bulk-Transport V1.0
Complies with Secure Digital Card (SD) specification up to ver. 3.0(SDXC)
Complies with MultiMedia Card (MMC) specification up to ver. 4.2
Complies with Memory Stick (MS) specification up to ver. 1.43
Complies with Memory Stick PRO (MS_Pro) specification up to ver. 1.02
Complies with Memory Stick PRO-HG (MS PRO-HG) specification up to ver. 1.01
Complies with Memory Stick Interface Guideline for PC peripheral devices with Memory Stick Slot ver.1.16-00
Benefit 1 AU6438-JBS USB2.0 Single-LUN Flash Card Reader V1.00
1K bytes of ping-pong FIFO buffs the data transmission between transmitter and receiver
Integrated hardware DMA engine enhances overall performance of data transfers
Supports power saving mode to reduce power consumption
User-friendly Dynamic icon utility software can display icon message upon insertion/removal of compatible flash cards under Windows
Optimizes performance via multiple sectors transfer
Built-in 5V to 3.3V/3.3V to 1.8V regulator offers customers lower BOM cost
Clock runs at 48MHz crystal 2 AU6438-JBS USB2.0 Single-LUN Flash Card Reader V1.00 2. Application Block Diagram Following application diagram demonstrates a typical card reader using the AU6438 chip. By connecting the card reader to a desktop or notebook PC through USB bus, the AU6438 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 SD/MMC/MS AU6438 Moble Phones PC 3 AU6438-JBS USB2.0 Single-LUN Flash Card Reader V1.00 3. Pin Assignment AU6438 is available in 28-pin SSOP package. Below diagram shows signal name of each pin and table in the following page describes each pin in detail. Figure 3.1 AU6438 Pin Assignment Diagram 4 AU6438-JBS USB2.0 Single-LUN Flash Card Reader V1.00 Table 3.1 AU6438 Pin Descriptions Pin # Pin Name I/O Description 1 SDCDN IO SDCDN 2 CTRL1 IO SDWP/MSCLK 3 GPON7 O Card access LED. 4 CHIPRESETN I Chip reset. Low active. Internal pull up. 5 REXT 6 V33APHY 7 DP USB DP 8 DM USB DM 9 VSSAREG 10 XI I Crystal input 11 XO O Crystal output 12 VSS 13 V18 14 C_V33 15 AVDD5V 16 V33 17 VSSHM 18 MSINS IO MSINS 19 DATA2 IO SDDATA2/MSDATA2 20 DATA3 IO SDDATA3/MSDATA3 21 DATA4 IO SDDATA4 22 SDCMD IO 23 CTRL2 IO 24 CTRL0 IO SDCMD SDDATA5/EEPCLK When I2C mode, internal has 45-75K pull up SDCLK/MSBS 25 DATA6 IO 26 CTRL3 IO 27 DATA0 IO SDDATA6 SDDATA7/EEPDAT When I2C mode, internal has 45-75K pull up SDDATA0/MSDATA0 28 DATA1 IO SDDATA1/MSDATA1 680 Ω reference resistance PHY 3.3V power pin Regulator 1.8V output Card power 3.3V output Regulator 5V input Regulator 3.3V output 5 AU6438-JBS USB2.0 Single-LUN Flash Card Reader V1.00 4. System Architecture and Reference Design 4.1 AU6438 Block Diagram Figure 4.1 AU6438 Block Diagram USB USB Upstream Port XCVR PIE Processor 5V to 3.3V 3.3V to 1.8V Voltage Regulator /Power Switch 5V 6 RAM 12MHz ROM SD/MMC/MS Control FIFO Arbitrator SD MMC MS AU6438-JBS USB2.0 Single-LUN Flash Card Reader V1.00 5. Electrical Characteristics 5.1 Absolute Maximum Ratings SYMBOL Table 5.1 Absolute Maximum Ratings PARAMETER RATING UNITS VCC33 Power supply -1 to 4V V VIN Input Signal Voltage -1 to 4V V TSTG Storage Temperature -40 to 150 O C 5.2 Recommended Operating Conditions Table 5.2 Recommended Operating Conditions SYMBOL PARAMETER MIN TYP MAX UNITS VCC33 Power Supply 3.0 3.3 3.6 V VIN Input Signal Voltage -0.3 VCC33 +0.3 V TOPR Operating Temperature 0 85 O C 5.3 General DC Characteristics Table 5.3 General DC Characteristics SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS IIN Input current No pull-up or pull-down IOZ Tri-state leakage current CIN Input capacitance Pad Limit 2.8 ρF COUT Output capacitance Pad Limit 2.8 ρF CBID Bi-directional buffer capacitance Pad Limit 2.8 ρF ICC Operating supply current Without Memory Card -10 ±1 10 µA -10 ±1 10 µA 24 mA 7 AU6438-JBS USB2.0 Single-LUN Flash Card Reader V1.00 5.4 DC Electrical Characteristics of 3.3V I/O Cells Table 5.4 DC Electrical Characteristics of 3.3V I/O Cells SYMBOL PARAMETER CONDITIONS VD33P Power supply 3.3V I/O Vil Input low voltage Limits UNIT MIN TYP MAX 3.0 3.3 3.6 V 0.8 V LVTTL Vih Input high voltage Vol Output low voltage ∣Iol∣=2~16mA Voh Output high voltage ∣Ioh∣=2~16mA 2.4 Rpu Input pull-up resistance PU=high, PD=low 55 75 110 KΩ Input pull-down resistance PU=low, PD=high 40 75 150 KΩ -10 ±1 10 μA -10 ±1 10 μA Rpd Iin Input leakage current Ioz Tri-state output leakage current 2.0 Vin= VD33P or 0 V 0.4 V V 5.5 USB Transceiver Characteristics Table 5.5 Electrical characteristics Symbol Parameter VD33P VDD V18 8 Conditions Min. Typ. Max. Unit Analog supply Voltage 3.0 3.3 3.6 V Digital supply Voltage 1.62 1.8 1.98 V AU6438-JBS USB2.0 Single-LUN Flash Card Reader V1.00 Table 5.6 Static characteristic： ：Digital pin Symbol Parameter Conditions Min. Typ. Max. Unit 0.8 V Input levels VIL Low-level input voltage VIH High-level input voltage 2.0 V Output levels VOL Low-level output voltage VOH High-level output voltage 0.2 V VD33P-0.2 V Table 5.7 Static characteristic： ：Analog I/O pins（ （DP/DM） ） Symbol Parameter Conditions Min. Typ. Max. Unit VHSDIFF VHSCM USB2.0 Transceiver（HS） Input Levels（differential receiver） ∣VI（DP）-VI（DM）∣ High speed differential measured at the 300 input sensitivity connection as application circuit High speed data signaling common mode voltage -50 range VHSSQ High speed squelch detection threshold VHSDSC High speed disconnection detection threshold VHSOI VHSOL VHSOH VCHIRPJ VCHIRPK RDRV mV Squelch detected No squelch detected Disconnection detected Disconnection not detected Output Levels 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 500 mV 100 mV 150 mV 625 mV 525 mV -10 10 mV -10 10 mV 360 440 mV 700 1100 mV -900 -500 mV 9 Ω 3 6 9 AU6438-JBS USB2.0 Single-LUN Flash Card Reader V1.00 Overall resistance including external resistor Termination VTERM VDI VCM VSE 40.5 Termination voltage for pull-up resistor on pin 3.0 RPU USB1.1 Transceiver（FS） Input Levels（differential receiver） Differential input ∣VI（DP）-VI（DM）∣ 0.2 sensitivity Differential common 0.8 mode voltage Input Levels（single-ended receivers） Single ended receiver 0.8 threshold Output levels 45 49.5 3.6 V V 2.5 V 2.0 V 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 tHSF High-speed differential rise time High-speed differential fall time 500 ps 500 ps Full-Speed Mode tFR tFF tFRMA VCRS 10 CL=50pF；10 to 90﹪ of∣VOH-VOL∣； CL=50pF；90 to 10﹪ Fall time of∣VOH-VOL∣； Excluding the first Differential rise/fall time transition from idle matching（tFR / tFF） mode Excluding the first Output signal crossover transition from idle voltage mode Rise time 4 20 ns 4 20 ns 90 110 ％ 1.3 2.0 V AU6438-JBS USB2.0 Single-LUN Flash Card Reader V1.00 5.6 Power Switch Feature Figure 5.1 Card Power Switch Output Capacity Figure 5.2 Card Detect Power-in Timing 1ms to 10ms ( Depend Load Capacitor ) 3.3V+/- 0.3V CARD_POWER 100ms + System Polling timing CARD_DETECT 11 AU6438-JBS USB2.0 Single-LUN Flash Card Reader V1.00 5.7 Chip Reset Timing Figure 5.3 Chip Reset Timing. Chip reset should keep low (