NFC Digital Protocol - CWI

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NFC-F Technology6.7.3 Guard TimeThis section specifies the guard time of an Unmodulated Carrier, after which the NFC ForumDevice in Listen Mode must be ready to receive a SENSF_REQ Command.Listen ModeRequirements 94: Guard Time – NFC-F6.7.3.1 When an NFC Forum Device in Listen Mode is exposed to an Unmodulated Carrier (see[ANALOG]), it MUST be ready to receive a SENSF_REQ Command within a guardtime GT F .Refer to Appendix A.3 for the value of GT F .NFC Digital Protocol Page 87
Half-duplex Protocols7 Half-duplex ProtocolsFor the NFC Forum Devices, data is transmitted using half-duplex protocols. These protocolsshare common characteristics that are described in this section. Specific characteristics of eachhalf-duplex protocol such as timeouts and exception handling are described in the followingsections.Half-duplex means that only one device sends data at a time. Specifically for NFC ForumDevices, there is a master-slave relationship between two devices. If the NFC Forum Device is inPoll Mode, it is the master; if the NFC Forum Device is in Listen Mode, it is the slave.The NFC Forum Device in Poll Mode sends a single Poll Frame and then waits for a ListenFrame. The NFC Forum Device in Listen Mode waits for a Poll Frame before sending a singleListen Frame.Requirements 95: General Rules for Half-duplex Transmission ProtocolPoll Mode7.1.1.1 After sending a Poll Frame, the NFCForum Device in Poll Mode MUSTswitch to receive mode and wait for aListen Frame before switching backto transmit mode.7.1.1.3 The NFC Forum Device in PollMode MUST not send another PollFrame until it has received a ListenFrame or until a timeout occurredwith no Listen Frame.Listen Mode7.1.1.2 After the activation of the NFCForum Device in Listen Mode, theNFC Forum Device in Listen ModeMUST wait for a Poll Frame.7.1.1.4 The NFC Forum Device in ListenMode MUST send a Listen Framewhen it has received a valid PollFrame. After responding, the NFCForum Device in Listen ModeMUST return to the receive mode.NFC Digital Protocol Page 88
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RESTRICTIONS ON USEThis specificati
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4.9.1 SLP_REQ Command .............
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11.7.2 SFGT .......................
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FiguresFigure 1: Modified Miller Co
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Table 34: FO - DID ................
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Table 104: Format of the DEP_RES Re
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Requirements 34: Signal Patterns Li
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Requirements 103: Frame Delay Times
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Requirements 173: Block Sizes durin
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Introduction1 Introduction1.1 Scope
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Introduction[T3TOP][T4TOP]Type 3 Ta
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IntroductionAbbreviationJISLSBlsbMa
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IntroductionOperating VolumeThe thr
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IntroductionSemantic ErrorSyntax Er
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OverviewTable 3: Activities versus
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NFC-A Technology4 NFC-A TechnologyT
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NFC-A Technology4.1.2 Listen→Poll
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NFC-A Technology4.1.4 De-synchroniz
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NFC-A Technology4.2.2 Listen→Poll
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NFC-A TechnologyRequirements 12: St
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NFC-A TechnologyPoll and Listen Mod
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NFC-A TechnologyTable 8: Byte 2 of
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NFC-A TechnologyTable 12: Format of
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NFC-A Technology4.7.2 SDD_RES Respo
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NFC-A TechnologyIn response to an S
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NFC-A TechnologyTable 16: NFCID1 CL
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Page 60 and 61: NFC-A TechnologyFDT A,POLL1 bd1 bd
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Page 70 and 71: NFC-B Technology5.3 Frame FormatTo
Page 72 and 73: NFC-B TechnologyTable 22: ALLB_REQ
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Page 76 and 77: NFC-B TechnologyTable 28: Bit Rates
Page 78 and 79: NFC-B Technology• Protocol_TypePr
Page 80 and 81: NFC-B Technology• ADCThe ADC repr
Page 82 and 83: NFC-B Technology5.7.2 SLOT_MARKER R
Page 84 and 85: NFC-B TechnologyRequirements 65: Fr
Page 86 and 87: NFC-B TechnologyRequirements 67: FD
Page 88 and 89: NFC-B TechnologyRequirements 70: Gu
Page 90 and 91: NFC-F TechnologyPoll and Listen Mod
Page 92 and 93: NFC-F Technology6.1.3 De-synchroniz
Page 94 and 95: NFC-F TechnologyPoll and Listen Mod
Page 96 and 97: NFC-F TechnologyRequirements 81: Re
Page 98 and 99: NFC-F TechnologyTable 43: SENSF_RES
Page 100 and 101: NFC-F TechnologyRequirements 87: MR
Page 102 and 103: NFC-F TechnologyTable 46: RD Format
Page 104 and 105: NFC-F TechnologyRequirements 91: FD
Page 108 and 109: Type 1 Tag Platform8 Type 1 Tag Pla
Page 110 and 111: Type 1 Tag PlatformRequirements 99:
Page 112 and 113: Type 1 Tag Platform8.6.2 RID Respon
Page 114 and 115: Type 1 Tag PlatformRequirements 103
Page 118 and 119: Type 2 Tag PlatformTable 52: READ R
Page 122 and 123: Type 3 Tag Platform10 Type 3 Tag Pl
Page 124 and 125: Type 3 Tag PlatformTable 59: Format
Page 126 and 127: Type 4A Tag PlatformFigure 29 illus
Page 128 and 129: Type 4A Tag PlatformListen ModeRequ
Page 130 and 131: Type 4A Tag PlatformRequirements 13
Page 132 and 133: Type 4A Tag PlatformRequirements 13
Page 134 and 135: Type 4A Tag PlatformTable 69: Codin
Page 136 and 137: Type 4A Tag Platform11.7.2 SFGTThe
Page 138 and 139: Type 4B Tag Platform12.5 Command Se
Page 140 and 141: Type 4B Tag PlatformRequirements 15
Page 142 and 143: Type 4B Tag PlatformRequirements 15
Page 144 and 145: Type 4B Tag PlatformParam 4The Para
Page 146 and 147: Type 4B Tag Platform12.7 Timing Req
Page 148 and 149: ISO-DEP Protocol13.1.2 SoDThe SoD c
Page 150 and 151: ISO-DEP ProtocolRequirements 165: D
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ISO-DEP ProtocolRequirements 177: B
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ISO-DEP ProtocolRequirements 180: E
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ISO-DEP ProtocolRequirements 181: D
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NFC-DEP Protocol14 NFC-DEP Protocol
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NFC-DEP ProtocolInitiator and Targe
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NFC-DEP ProtocolRequirements 190: I
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NFC-DEP ProtocolGeneral Bytes (G I
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NFC-DEP ProtocolRequirements 197: T
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NFC-DEP ProtocolTable 99: Format of
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NFC-DEP ProtocolTable 103: Format o
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NFC-DEP ProtocolTable 105: PFB Codi
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NFC-DEP ProtocolRequirements 206: R
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NFC-DEP ProtocolRequirements 208: D
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NFC-DEP Protocol14.11 Timing Requir
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NFC-DEP Protocol14.12 NFC-DEP Proto
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NFC-DEP Protocol14.12.4 PDU Handlin
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NFC-DEP ProtocolRequirements 220: E
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ValuesA.2 NFC-B TechnologyTable 115
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ValuesA.6 Type 3 Tag PlatformTable
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Revision HistoryB. Revision History
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NFC Digital Protocol - CWI

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