ANSI-INCITS-256-2001.pdf
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1、ANSI INCITS 256-2001 (formerly ANSI NCITS 256-2001) for Information Technology Radio Frequency Identification (RFID) Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 12:01:04 MD
2、TNo reproduction or networking permitted without license from IHS -,-,- Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 12:01:04 MDTNo reproduction or networking permitted with
3、out license from IHS -,-,- ANSI NCITS 256-2001 Revision of ANSI NCITS 256-1999 American National Standard for Information Technology Radio Frequency Identification (RFID) Secretariat Information Technology Industry Council Approved June 8, 2001 American National Standards Institute, Inc. Abstract Th
4、is standard defines Radio Frequency Identification (RFID) for item management. This standard allows for compatibility and encourages interoperability of products for the growing RFID market in the United States. Copyright American National Standards Institute Provided by IHS under license with ANSI
5、Licensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 12:01:04 MDTNo reproduction or networking permitted without license from IHS -,-,- Approval of an American National Standard requires review by ANSI that the requirements for due process, consensus, and other criteri
6、a for approval have been met by the standards developer. Consensus is established when, in the judgement of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected interests. Substantial agreement means much more than a simple majority, but not
7、necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made towards their resolution. The use of American National Standards is completely voluntary; their existence does not in any respect preclude anyone, whether he has approved the st
8、andards or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standards. The American National Standards Institute does not develop standards and will in no circumstances give an interpretation of any American National Standard. Moreover
9、, no person shall have the right or authority to issue an interpretation of an American National Standard in the name of the American National Standards Institute. Requests for interpretations should be addressed to the secretariat or sponsor whose name appears on the title page of this standard. CA
10、UTION NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken periodically to reaffirm, revise, or withdraw this standard. Purchasers of American National Standards may receive current i
11、nformation on all standards by calling or writing the American National Standards Institute. American National Standard Published by American National Standards Institute, Inc. 11 West 42nd Street, New York, NY 10036 Copyright 2001 by Information Technology Industry Council (ITI) All rights reserved
12、. No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without prior written permission of ITI, 1250 Eye Street NW, Washington, DC 20005. Printed in the United States of America CAUTION: The developers of this standard have requested that holders
13、 of patents that may be re- quired for the implementation of the standard disclose such patents to the publisher. However, nei- ther the developers nor the publisher have undertaken a patent search in order to identify which, if any, patents may apply to this standard. As of the date of publication
14、of this standard, following calls for the identification of patents that may be required for the implementation of the standard, notice of one or more such claims has been received. By publication of this standard, no position is taken with respect to the validity of this claim or of any rights in c
15、onnection therewith. The known patent holder(s) has (have), however, filed a statement of willingness to grant a license under these rights on reasonable and nondiscriminatory terms and conditions to applicants desiring to ob- tain such a license. Details may be obtained from the publisher. No furth
16、er patent search is con- ducted by the developer or publisher in respect to any standard it processes. No representation is made or implied that this is the only license that may be required to avoid infringement in the use of this standard. Copyright American National Standards Institute Provided b
17、y IHS under license with ANSI Licensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 12:01:04 MDTNo reproduction or networking permitted without license from IHS -,-,- i Contents Page Foreword.viii PART 1Introduction.1-1 1.1Purpose.1-1 1.2Scope1-1 1.2.1Frequency.1-1 1.2.
18、2Interface definitions.1-1 1.2.3RFID system definition1-2 1.2.4Minimum features .1-2 1.2.5Compliance requirements.1-2 1.2.6Document structure and references1-2 1.2.7Tag identification number1-2 1.3Referenced Documents1-3 1.3.1Normative references1-3 1.3.2Informative references1-3 1.4RFID Terminology
19、.1-3 1.4.1Abbreviations1-3 1.4.2Definitions.1-5 1.4.3Physical layer parameters.1-7 PART 2Application Program Interface.2-1 2.1Introduction.2-1 2.1.1Purpose.2-1 2.1.2Nomenclature and conventions 2-1 2.2Subroutine Calls2-2 2.2.1Subroutine G4Open()2-2 2.2.2Subroutine G4Close().2-4 2.2.3Subroutine G4Log
20、() 2-5 2.2.4Subroutine G4SetLogLevel() 2-6 2.2.5Subroutine G4Identify().2-7 2.2.6Subroutine G4Read()2-9 2.2.7Subroutine G4Write()2-12 2.2.8Subroutine G4SetAttr() .2-15 2.2.9Subroutine G4GetAttr().2-16 2.2.10Subroutine G4GetControl().2-17 2.2.11Subroutine G4GetFieldNames() .2-18 2.2.12Subroutine G4Ge
21、tErrorString().2-20 2.2.13Subroutine G4AllocateControl()2-21 2.2.14Subroutine G4FreeControl() .2-22 2.3Data Structures and Data Types.2-23 2.3.1Data structure and data types overview2-23 2.3.2Structure g4_inter_t 2-23 2.3.3Structure g4_control_t.2-25 2.3.4Structure g4_physadrs_t.2-34 2.3.5Structure
22、g4_access_id_t .2-35 2.3.6Structure g4_attr_t2-35 2.3.7TYPE g4_status_t.2-36 2.3.8Structure g4_tag_list_t2-36 2.4Selection Equation2-36 2.4.1Selection equation forms 2-37 2.4.2Tokens2-37 2.4.3Select list number .2-37 Copyright American National Standards Institute Provided by IHS under license with
23、ANSI Licensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 12:01:04 MDTNo reproduction or networking permitted without license from IHS -,-,- ii Page PART 32.45 GHz RFID Protocols that Support Part 2 3-1 3.1Passive Backscatter RFID System. 3-1 3.1.1Functional descriptio
24、n. 3-1 3.1.2RFID tag interface definition . 3-9 3.1.3Physical link specifications . 3-15 3.2Read/Write Backscatter RFID System 3-16 3.2.1Introduction. 3-16 3.2.2Theory of operation. 3-16 3.2.3Command structure 3-18 3.2.4Error detection 3-19 3.2.5Command descriptions. 3-21 3.2.6Tag/interrogator commu
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