Future Technology Devices International Ltd. TN_145 FT311D Errata Technical Note Document Reference No.: FT_000756 Version 1.0 Issue Date: 2012-10-05 The intention of this errata technical note is to give a detailed description of known functional or electrical issues with the FTDI FT311D devices. The current revision of the FT311D is revision 1C, released October 2012. Future Technology Devices International Limited (FTDI) Unit1, 2 Seaward Place, Centurion Business Park, Glasgow G41 1HH United Kingdom Tel.: +44 (0) 141 429 2777 Fax: + 44 (0) 141 429 2758 E-Mail (Support): [email protected] Web: http://www.ftdichip.com Copyright © 2012 Future Technology Devices International Limited TN_145 FT311D Errata Technical Note Version 1.0 Document Reference No.: FT_000756 Clearance No.: FTDI# 317 TABLE OF CONTENTS 1 FT311D Revision .................................................................................... 2 2 Errata History Table – Functional Problems........................................ 3 3 Functional Problems of FT311D ........................................................... 4 3.1 Revision 1B .......................................................................................................... 4 3.1.1 Device enumeration fails when connection and disconnection is repeated ............................ 4 3.1.2 Android OS 4.1 ........................................................................................................................ 5 4 FT311D Package Markings.................................................................... 6 5 Contact Information............................................................................... 7 Appendix A – Revision History ................................................................... 8 Copyright © 2012 Future Technology Devices International Limited 1 TN_145 FT311D Errata Technical Note Version 1.0 Document Reference No.: FT_000756 Clearance No.: FTDI# 317 1 FT311D Revision FT311D part numbers are listed in Table 1. The letter at the start of date code identifies the device revision. The current revision of the FT311D is revision 1C, released October 2012. At the time of releasing this Technical Note there are two known issues with this silicon revision. Part Number Package FT311D-32Q1C-x 32 Pin QFN FT311D-32L1C-x 32 Pin LQFP Table 1 FT311D Part Numbers This errata technical note covers the revisions of FT311D listed in Table 2. Revision Notes 1A First device revision. Launched date July 2012 1B Performance boost. Launched date August 2012 Table 2 FT311D Revisions Copyright © 2012 Future Technology Devices International Limited 2 TN_145 FT311D Errata Technical Note Version 1.0 Document Reference No.: FT_000756 Clearance No.: FTDI# 317 2 Errata History Table – Functional Problems Functional Problem Short description USB Connect Device enumeration fails when connection and disconnection is Disconnect repeated Android 4.1 OS Android 4.1 OS interoperability Errata occurs in device revision 1A, 1B 1A, 1B Table 3 Functional Errata Copyright © 2012 Future Technology Devices International Limited 3 TN_145 FT311D Errata Technical Note Version 1.0 Document Reference No.: FT_000756 Clearance No.: FTDI# 317 3 Functional Problems of FT311D 3.1 Revision 1B 3.1.1 Device enumeration fails when connection and disconnection is repeated Introduction: An issue has been identified where the enumeration of the Android device fails during connection. Problem: The Android device is connected to the FT311D device and disconnected. The connection and disconnection is repeated at a faster rate. This will result in the FT311D device not enumerating the Android device. When this problem occurs the Android application will not launch on the android device. Workaround: This issue can be recovered by powering off the FT311D device and powering on. This will enable the FT311D to re-enumerate the Android device and is therefore an intermediate workaround until next revision silicon is released with a permanent fix. Package specific: The effected packages are listed in Table 4. Package Applicable (Yes/No) FT311D-32Q1C-x Y FT311D-32L1C-x Y Table 4 Copyright © 2012 Future Technology Devices International Limited 4 TN_145 FT311D Errata Technical Note Version 1.0 Document Reference No.: FT_000756 Clearance No.: FTDI# 317 3.1.2 Android OS 4.1 Introduction: An issue has been identified where the FT311D will not handle FT311D API commands send from the Android application. Problem: When FT311D is connected to Android device with Android OS version 4.1 and above, the FT311D enumerates the android device and the android application is launched but the FT311D device will not handle any FT311D API commands sent from the android application. FT311D signals an error condition in the USB_ERROR pins with device not responding. Android device with OS version 4.1 and above use Android Open Accessory version 2.0. The get protocol version command from the FT311D receives 0200 whereas the FT311D device supports Android Open Accessory version 1.0. Workaround: There is no direct work around for this issue. The possible workaround is to use Android OS version 3.1 to Android OS version 4.0 which has Android Open Accessory version 1.0 Package specific: The effected packages are listed in Table 5. Package Applicable (Yes/No) FT311D-32Q1C-x Y FT311D-32L1C-x Y Table 5 Copyright © 2012 Future Technology Devices International Limited 5 TN_145 FT311D Errata Technical Note Version 1.0 Document Reference No.: FT_000756 Clearance No.: FTDI# 317 4 FT311D Package Markings FT311D is available in a RoHS Compliant RoHS Compliant package, 32 pin QFN and 32 pin LQFP. An example of the markings on the package is shown in Figure 5.1. FTDIII XXXXXXXX FT311D-32Q 1C YYWW 32 Line 1 – FTDI Logo Line 2 – Wafer Lot Number Line 3 – FTDI Part Number Line 4 – Revision and Date Code 1 Figure 4-1 Package Markings – FT311D-Q FTDI XXXXXXXXXX FT311D-L 1C YYWW Line 1 – FTDI Logo Line 2 – Wafer Lot Number Line 3 – FTDI Part Number Line 4 – Date Code 32 1 Figure 4-2 Package Markings – FT311D-L The date code format is YYWW where WW = 2 digit week number, YY = 2 digit year number. This is preceded by the revision number. The code XXXXXXXXXXXX is the manufacturing LOT code Copyright © 2012 Future Technology Devices International Limited 6 TN_145 FT311D Errata Technical Note Version 1.0 Document Reference No.: FT_000756 Clearance No.: FTDI# 317 5 Contact Information Head Office – Glasgow, UK Branch Office – Hillsboro, Oregon, USA Future Technology Devices International Limited Unit 1, 2 Seaward Place, Centurion Business Park Glasgow G41 1HH United Kingdom Tel: +44 (0) 141 429 2777 Fax: +44 (0) 141 429 2758 Future Technology Devices International Limited (USA) 7130 SW Fir Loop Tigard, OR 97223 USA Tel: +1 (503) 547 0988 Fax: +1 (503) 547 0987 E-mail (Sales) E-mail (Support) E-mail (General Enquiries) E-Mail (Sales) E-Mail (Support) E-Mail (General Enquiries) [email protected] [email protected] [email protected] Branch Office – Taipei, Taiwan Future Technology Devices International Limited (Taiwan) 2F, No. 516, Sec. 1, NeiHu Road Taipei 114 Taiwan , R.O.C. Tel: +886 (0) 2 8791 3570 Fax: +886 (0) 2 8791 3576 E-mail (Sales) E-mail (Support) E-mail (General Enquiries) [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] Branch Office – Shanghai, China Future Technology Devices International Limited (China) Room 1103, No. 666 West Huaihai Road, Shanghai, 200052 China Tel: +86 21 62351596 Fax: +86 21 62351595 E-mail (Sales) E-mail (Support) E-mail (General Enquiries) [email protected] [email protected] [email protected] Web Site http://ftdichip.com System and equipment manufacturers and designers are responsible to ensure that their systems, and any Future Technology Devices International Ltd (FTDI) devices incorporated in their systems, meet all applicable safety, regulatory and system-level performance requirements. All application-related information in this document (including application descriptions, suggested FTDI devices and other materials) is provided for reference only. While FTDI has taken care to assure it is accurate, this information is subject to customer confirmation, and FTDI disclaims all liability for system designs and for any applications assistance provided by FTDI. Use of FTDI devices in life support and/or safety applications is entirely at the user’s risk, and the user agrees to defend, indemnify and hold harmless FTDI from any and all damages, claims, suits or expense resulting from such use. This document is subject to change without notice. No freedom to use patents or other intellectual property rights is implied by the publication of this document. Neither the whole nor any part of the information contained in, or the product described in this document, may be adapted or reproduced in any material or electronic form without the prior written consent of the copyright holder. Future Technology Devices International Ltd, Unit 1, 2 Seaward Place, Centurion Business Park, Glasgow G41 1HH, United Kingdom. Scotland Registered Company Number: SC136640 Copyright © 2012 Future Technology Devices International Limited 7 TN_145 FT311D Errata Technical Note Version 1.0 Document Reference No.: FT_000756 Clearance No.: FTDI# 317 Appendix A – Revision History Document Title: Document Reference No.: Clearance No.: Product Page: Document Feedback: Version 1.0 First Release TN_145 FT311D Errata Technical Note FT_000756 FTDI# 317 http://www.ftdichip.com/Products/ICs/FT311D.html Send Feedback 05/10/2012 Copyright © 2012 Future Technology Devices International Limited 8