1、 ETSI TS 102 312 V1.1.1 (2004-02)Technical Specification Near Field Communication Interfaceand Protocol-2 (NFCIP-2)ETSI ETSI TS 102 312 V1.1.1 (2004-02) 2 Reference DTS/ECMA-00288 Keywords interface, NFC ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax:
2、 +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice Individual copies of the present document can be downloaded from: http:/www.etsi.org The present document may be made available in more than on
3、e electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network dri
4、ve within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present
5、document, send your comment to: editoretsi.org Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2004. All rights reserved. DECT
6、TM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTMand the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organi
7、zational Partners. ETSI ETSI TS 102 312 V1.1.1 (2004-02) 3 Contents Intellectual Property Rights4 Foreword.4 Brief history4 1 Scope 5 2 Conformance 5 3 References 5 4 Definitions and abbreviations.5 4.1 Definitions5 4.2 Abbreviations .6 5 Conventions and notations .6 5.1 Names.6 6 External RF field
8、threshold value.6 7 RF field detection.6 8 Mode selection .6 9 RF detection and Initial RF generation 7 History 9 ETSI ETSI TS 102 312 V1.1.1 (2004-02) 4 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information perta
9、ining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secreta
10、riat. Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or t
11、he updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Technical Specification (TS) has been produced by ECMA on behalf of its members and those of the European Telecommunications Standards Institute (ETSI). Brief history In 2002, ECM
12、A International formed Task Group 19 of Technical Committee 32 to specify Near Field Communication (NFC) signal interfaces and protocols. The NFC devices are wireless closely coupled devices communicating at 13,56 MHz. The General Assembly of December 2002 adopted the Near Field Communication Interf
13、ace and Protocol-1 (NFCIP-1) as ECMA-340 1. Although ECMA-340 1 (NFCIP-1), ISO/IEC 14443 2 and ISO/IEC 15693 3 all specify 13,56 MHz as their working frequency, they specify distinct communication modes. These are defined as NFC, PCD, and VCD communication modes respectively. The present document sp
14、ecifies the mechanism to detect and select one communication mode out of those three possible communication modes. Furthermore, NFCIP-2 requires that subsequent behaviour be as specified in the standard specifying the selected communication mode. TC32-TG19 applied minor editorial changes to figure 1
15、 and clause 9 in their 7thmeeting. The December 2003 General Assembly adopted the Near Field Communication Interface and Protocol-2 (NFCIP-2) as ECMA-352. ETSI ETSI TS 102 312 V1.1.1 (2004-02) 5 1 Scope ECMA-340 1, ISO/IEC 14443 2 and ISO/IEC 15693 3 specify the RF signal interface, initialization,
16、anti-collision and protocols for wireless interconnection of closely coupled devices and access to contactless integrated circuit cards operating at 13,56 MHz. The present document specifies the communication mode selection mechanism, designed to not disturb any ongoing communication at 13,56 MHz, f
17、or devices implementing ECMA-340 1 and the reader functionality for integrated circuit cards compliant to ISO/IEC 14443 2 or ISO/IEC 15693 3. The present document requires implementations to enter the selected communication mode as specified in the respective standard. The communication mode specifi
18、cations, however, are outside the scope of the present document. 2 Conformance A conforming implementation complies with all the mandatory clauses in the present document. 3 References The following documents contain provisions which, through reference in this text, constitute provisions of the pres
19、ent document. References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. Referenced documents which are not found to
20、 be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. 1 ECMA-340 (2002): “Near Field Communication - Interface and Protocol (NFCIP-1)“. 2 ISO/IEC 14443 (all parts) (2001): “Identification cards - Contactless integrated circuit(s) cards - Proximity cards“.
21、 3 ISO/IEC 15693 (all parts) (2001): “Identification cards - Contactless integrated circuit(s) cards - Vicinity cards“. 4 Definitions and abbreviations 4.1 Definitions For the purposes of the present document, the terms and definitions given in ECMA-340, ISO/IEC 14443, ISO/IEC 15693 and the followin
22、g apply: HThreshold: minimum value of an external RF field that a NFCIP-2 device shall detect to not disturb ongoing communication by ensuring that its own RF field is switched off NFC MODE: communication as specified in ECMA-340 OPERATING FREQUENCY (fc): 13,56 MHz 7 kHz PCD: Proximity Coupling Devi
23、ce as specified in ISO/IEC 14443 ETSI ETSI TS 102 312 V1.1.1 (2004-02) 6 PCD MODE: contactless communication between PCD and PICC as specified in ISO/IEC 14443 VCD: Vicinity Coupling Device as specified in ISO/IEC15693 VCD MODE: contactless communication between VCD and VICC as specified in ISO/IEC
24、15693 4.2 Abbreviations For the purposes of the present document, the following abbreviations apply: NFC Near Field Communication NFCIP-1 Near Field Communication Interface and Protocol-1 5 Conventions and notations 5.1 Names The names of basic elements, e.g. specific fields, are written with a capi
25、tal initial letter. 6 External RF field threshold value NFCIP-2 devices shall detect external RF fields at the OPERATING FREQUENCY with a value higher than HTHRESHOLD while performing external RF field detection. The value of HTHRESHOLD= 0,1875 A/m. 7 RF field detection In order to not disturb any c
26、ommunication on the OPERATING FREQUENCY, an NFCIP-2 device shall not switch on its RF field when it detects an external RF field, as specified in clause 6. 8 Mode selection Mode selection specifies the procedure for NFCIP-2 devices to select and subsequently enter one the NFC MODE, or the PCD MODE a
27、nd VCD MODE. NFCIP-2 devices shall implement the following functions: 1) Initiator and target as specified in ECMA-340 1; 2) PCD as specified in ISO/IEC 14443 2; and 3) VCD as specified in ISO/IEC 15693 3. NFCIP-2 devices shall execute the following sequence: 1) The NFCIP-2 device shall have its RF
28、field switched off. 2) If the NFCIP-2 device detects an external RF field, as specified in clause 6, it shall select the NFC MODE. 3) If the NFCIP-2 device does not detect an external RF field it shall select the NFC MODE, or the PCD MODE or the VCD MODE. 4) If the NFCIP-2 device has selected the NF
29、C MODE, it shall enter the NFC MODE. ETSI ETSI TS 102 312 V1.1.1 (2004-02) 7 5) NFCIP-2 devices that have selected either the PCD MODE or VCD MODE, shall perform RF detection, Initial RF generation and subsequently enter the selected mode as specified in clause 9. Figure 1 illustrates the above proc
30、edure. Figure 1: Mode selection 9 RF detection and Initial RF generation Any NFCIP-2 device having selected the PCD MODE or the VCD MODE shall continue the mode selection sequence and comply with the timing as specified below. When the NFCIP-2 device detects an external RF field, as specified in cla
31、use 7, during the time TIDT+ n TRFWit shall recommence the mode selection procedure that is specified in clause 8. ETSI ETSI TS 102 312 V1.1.1 (2004-02) 8 If the NFCIP-2 device does not detect an external RF field during the timeTIDT+ n TRFW, it shall switch on its RF field, and enter the selected c
32、ommunication mode. Figure 2 illustrates the RF detection and initial RF generation. StartTIDTn * TRFWTIRFGTRFWRF OnData orCommandFigure 2: RF detection and initial RF generation for PCD MODE and VCD MODE TIDT: Initial delay time. TIDT 4 096 / fc (300 s). TRFW: RF waiting time. 512 / fc (38 s). n: ra
33、ndomly generated integer 0 n 3. TIRFG: Initial guard-time between switching on RF field and start modulation to send command or data. The specification of TIRFGis not part of the present document. In PCD MODE the time between switching on the RF field and modulating the field to transmit data is specified in clause 5 of ISO/IEC 14443-2 2. In VCD MODE the time between switching on the RF field and modulating the field to transmit data is specified in clause 7.3 of ISO/IEC 15693-2 3. ETSI ETSI TS 102 312 V1.1.1 (2004-02) 9 History Document history V1.1.1 February 2004 Publication
