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NFC Forum协议技术规范.pdf
1 Introduction
1.1 Scope
1.2 Audience
1.3 Applicable Documents or References
1.4 Administration
1.5 Name and Logo Usage
1.6 Intellectual Property
1.7 Acknowledgements
1.8 Special Word Usage
1.9 Requirement Numbering
1.10 Implementation of Optional Items
1.11 Notational Conventions
1.11.1 Notations
1.11.2 Value of Parameters
1.12 Abbreviations
1.13 Glossary
1.13.1 Device and Communication
1.13.2 Protocol and Mode
1.13.3 Errors
2 Overview
3 Bit Duration
4 NFC-A Technology
4.1 Sequence Format
4.1.1 Poll(Listen Modulation
4.1.2 Listen(Poll Modulation
4.1.3 Synchronization
4.1.4 De-synchronization
4.2 Bit Level Coding
4.2.1 Poll(Listen Coding Scheme
4.2.2 Listen(Poll Coding Scheme
4.3 Frame Format
4.3.2 Short Frame
4.3.3 Standard Frame
4.3.4 Bit Oriented SDD Frame
4.4 Data and Payload Format
4.5 Command Set
4.6 ALL_REQ and SENS_REQ
4.6.1 ALL_REQ Command
4.6.2 SENS_REQ Command
4.6.3 SENS_RES Response
4.7 SDD_REQ
4.7.1 SDD_REQ Command
4.7.2 SDD_RES Response
4.8 SEL_REQ
4.8.1 SEL_REQ Command
4.8.2 SEL_RES Response
4.9 SLP_REQ
4.9.1 SLP_REQ Command
4.9.2 SLP_REQ Response
4.10 Timing Requirements
4.10.1 Frame Delay Time Poll(Listen
4.10.2 Frame Delay Time Listen(Poll
4.10.3 Guard Time
5 NFC-B Technology
5.1 Sequence Format
5.1.1 Poll(Listen Modulation
5.1.2 Listen(Poll Modulation
5.1.3 Synchronization
5.1.4 Pattern Synchronization
5.1.5 De-synchronization
5.2 Bit Level Coding
5.2.1 Poll(Listen Coding Scheme
5.2.2 Listen(Poll Coding Scheme
5.3 Frame Format
5.4 Data and Payload Format
5.5 Command Set
5.6 ALLB_REQ and SENSB_REQ
5.6.1 ALLB_REQ and SENSB_REQ Command
5.6.2 SENSB_RES Response
5.7 SLOT_MARKER
5.7.1 SLOT_MARKER Command
5.7.2 SLOT_MARKER Response
5.8 SLPB_REQ
5.8.1 SLPB_REQ Command
5.8.2 SLPB_RES Response
5.9 Timing Requirements
5.9.1 Frame Delay Time Poll(Listen
5.9.2 Frame Delay Time Listen(Poll
5.9.3 Guard Time
6 NFC-F Technology
6.1 Sequence Format
6.1.1 Modulation
6.1.2 Synchronization
6.1.3 De-synchronization
6.2 Bit Level Coding
6.3 Frame Format
6.4 Data and Payload Format
6.5 Command Set
6.6 SENSF_REQ
6.6.1 SENSF_REQ Command
6.6.2 SENSF_RES Response
6.7 Timing Requirements
6.7.1 Frame Delay Time Poll(Listen
6.7.2 Frame Delay Time Listen(Poll
6.7.3 Guard Time
7 Half-duplex Protocols
8 Type 1 Tag Platform
8.1 Sequence Format
8.2 Bit Level Coding
8.3 Frame Format
8.4 Data and Payload Format
8.5 Command Set
8.6 Read Identifier (RID)
8.6.1 RID Command
8.6.2 RID Response
8.7 Timing Requirements
8.7.1 Reader-Reader Data Delay
8.7.2 Frame Delay Time
9 Type 2 Tag Platform
9.1 Sequence Format
9.2 Bit Level Coding
9.3 Frame Format
9.4 Data and Payload Format
9.5 Command Set
9.6 READ
9.6.1 Command
9.6.2 Response
9.7 WRITE
9.7.1 Command
9.7.2 Response
9.8 SECTOR SELECT
9.8.1 SECTOR SELECT Command Packet 1
9.8.2 SECTOR SELECT Command Packet 2
9.8.3 Response
9.9 Timing Requirements
10 Type 3 Tag Platform
10.1 Sequence Format
10.2 Bit Level Coding
10.3 Frame Format
10.4 Data and Payload Format
10.5 Command Set
10.6 Timing Requirements
11 Type 4A Tag Platform
11.1 Sequence Format
11.2 Bit Level Coding
11.3 Frame Format
11.4 Data and Payload Format
11.5 Command Set
11.6 Request for Answer to Select (RATS)
11.6.1 RATS Command
11.6.2 RATS Response (Answer To Select)
11.7 Timing Requirements
11.7.1 FWT
11.7.2 SFGT
12 Type 4B Tag Platform
12.1 Sequence Format
12.2 Bit Level Coding
12.3 Frame Format
12.4 Data and Payload Format
12.5 Command Set
12.6 ATTRIB
12.6.1 ATTRIB Command
12.6.2 ATTRIB Response
12.7 Timing Requirements
13 ISO-DEP Protocol
13.1 Block Format
13.1.1 Block
13.1.2 SoD
13.1.3 Payload
13.1.4 EoD
13.2 Protocol Operation
13.2.1 General Rules
13.2.2 Frame Waiting Time Extension
13.2.3 Chaining
13.2.4 Block Numbering Rules
13.2.5 Block Handling Rules
13.2.6 Exception Processing
13.2.7 De-activation Rules
13.3 Timing Requirements
14 NFC-DEP Protocol
14.1 Sequence Format
14.2 Bit Level Coding
14.3 Frame Format
14.4 Data and Payload Format
14.5 Command Set
14.6 Attribute Request (ATR_REQ)
14.6.1 ATR_REQ Length
14.6.2 ATR_REQ Command
14.6.3 ATR_RES Response
14.7 Parameter Selection Request (PSL_REQ)
14.7.1 PSL_REQ Command
14.7.2 PSL_RES Response
14.8 Data Exchange Protocol Request (DEP_REQ)
14.8.1 DEP_REQ Command
14.8.2 DEP_RES Response
14.8.3 Protocol Format Byte (PFB)
14.8.4 Response Timeout Extension
14.9 Deselect Request (DSL_REQ)
14.9.1 DSL_REQ Command
14.9.2 DSL_RES Response
14.10 Release Request (RLS_REQ)
14.10.1 RLS_REQ Command
14.10.2 RLS_RES Response
14.11 Timing Requirements
14.12 NFC-DEP Protocol Operation
14.12.1 General Rules
14.12.2 Chaining
14.12.3 PDU Numbering Rules
14.12.4 PDU Handling Rules
14.12.5 Exception Processing
A. Values
A.1 NFC-A Technology
A.2 NFC-B Technology
A.3 NFC-F Technology
A.4 Type 1 Tag Platform
A.5 Type 2 Tag Platform
A.6 Type 3 Tag Platform
A.7 Type 4A Tag Platform
A.8 Type 4B Tag Platform
A.9 ISO-DEP Protocol
A.10 NFC-DEP Protocol
B. Revision History
NFC Digital Protocol
Technical Specification
NFC ForumTM
DIGITAL 1.0
NFCForum-TS-DigitalProtocol-1.0
2010-11-17
RESTRICTIONS ON USE
This specification is copyright © 2005-2010 by the NFC Forum, and was made available pursuant to a
license agreement entered into between the recipient (Licensee) and NFC Forum, Inc. (Licensor) and may
be used only by Licensee, and in compliance with the terms of that license agreement (License). If you are
not the Licensee, you may read this Specification, but are not authorized to implement or make any other
use of this specification. However, you may obtain a copy of this Specification and implementation rights
at the following page of Licensor's website: http://www.nfc-forum.org/specs/spec_license after entering
into and agreeing to such license terms as Licensor is then requiring. On the date that this specification was
downloaded by Licensee, the non-implementation terms of that license were as follows:
1. LICENSE GRANT.
Licensor hereby grants Licensee the right, without charge, to copy (for internal purposes only) and share
this Specification with Licensee's members, employees and (to the extent related to Licensees use of this
Specification) consultants. This license grant does not include the right to sublicense, modify or create
derivative works based upon the Specification.
2. NO WARRANTIES.
THE SPECIFICATION IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, COMPLETENESS AND
NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO EVENT SHALL LICENSOR, ITS
MEMBERS OR ITS CONTRIBUTORS BE LIABLE FOR ANY CLAIM, OR ANY DIRECT, SPECIAL,
INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH
THE USE OR PERFORMANCE OF THE SPECIFICATION.
3. THIRD PARTY RIGHTS.
Without limiting the generality of Section 2 above, LICENSOR ASSUMES NO RESPONSIBILITY TO
COMPILE, CONFIRM, UPDATE OR MAKE PUBLIC ANY THIRD PARTY ASSERTIONS OF
PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS THAT MIGHT NOW OR IN THE
FUTURE BE INFRINGED BY AN IMPLEMENTATION OF THE SPECIFICATION IN ITS CURRENT,
OR IN ANY FUTURE FORM. IF ANY SUCH RIGHTS ARE DESCRIBED ON THE SPECIFICATION,
LICENSOR TAKES NO POSITION AS TO THE VALIDITY OR INVALIDITY OF SUCH
ASSERTIONS, OR THAT ALL SUCH ASSERTIONS THAT HAVE OR MAY BE MADE ARE SO
LISTED.
4. TERMINATION OF LICENSE.
In the event of a breach of this Agreement by Licensee or any of its employees or members, Licensor shall
give Licensee written notice and an opportunity to cure. If the breach is not cured within thirty (30) days
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thereafter terminate the licenses granted in this Agreement.
5. MISCELLANEOUS.
All notices required under this Agreement shall be in writing, and shall be deemed effective five days from
deposit in the mails. Notices and correspondence to the NFC Forum address as it appears below. This
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NFC Forum, Inc.
401 Edgewater Place, Suite 600
Wakefield, MA, USA 01880
Contents
1
4.2
4.3
Introduction .................................................................................................... 1
1.1
Scope ............................................................................................................................. 1
1.2 Audience ........................................................................................................................ 1
1.3 Applicable Documents or References ........................................................................... 1
1.4 Administration ............................................................................................................... 3
1.5 Name and Logo Usage .................................................................................................. 3
1.6
Intellectual Property ...................................................................................................... 4
1.7 Acknowledgements ....................................................................................................... 4
Special Word Usage ...................................................................................................... 4
1.8
1.9
Requirement Numbering ............................................................................................... 4
1.10
Implementation of Optional Items ................................................................................. 5
1.11 Notational Conventions ................................................................................................. 5
1.11.1 Notations ......................................................................................................... 5
1.11.2 Value of Parameters ........................................................................................ 5
1.12 Abbreviations ................................................................................................................ 6
1.13 Glossary ......................................................................................................................... 8
1.13.1 Device and Communication ............................................................................ 8
1.13.2 Protocol and Mode ........................................................................................ 10
1.13.3 Errors ............................................................................................................ 10
2 Overview ...................................................................................................... 12
3 Bit Duration .................................................................................................. 14
4 NFC-A Technology ...................................................................................... 15
Sequence Format ......................................................................................................... 15
Poll→Listen Modulation .............................................................................. 15
4.1.1
4.1.2
Listen→Poll Modulation .............................................................................. 17
Synchronization ............................................................................................ 18
4.1.3
4.1.4
De-synchronization ....................................................................................... 19
Bit Level Coding ......................................................................................................... 19
4.2.1
Poll→Listen Coding Scheme ........................................................................ 19
4.2.2
Listen→Poll Coding Scheme ........................................................................ 21
Frame Format .............................................................................................................. 21
Short Frame .................................................................................................. 22
4.3.2
4.3.3
Standard Frame ............................................................................................. 22
Bit Oriented SDD Frame .............................................................................. 23
4.3.4
4.4 Data and Payload Format ............................................................................................ 24
4.5
Command Set .............................................................................................................. 25
4.6 ALL_REQ and SENS_REQ ........................................................................................ 25
ALL_REQ Command ................................................................................... 26
4.6.1
SENS_REQ Command ................................................................................. 26
4.6.2
4.6.3
SENS_RES Response ................................................................................... 26
SDD_REQ ................................................................................................................... 27
SDD_REQ Command ................................................................................... 28
4.7.1
4.7.2
SDD_RES Response ..................................................................................... 31
SEL_REQ .................................................................................................................... 34
SEL_REQ Command .................................................................................... 34
4.8.1
4.8.2
SEL_RES Response ...................................................................................... 35
SLP_REQ .................................................................................................................... 36
4.7
4.1
4.8
4.9
NFC Digital Protocol
Page i
5.2
5.1
4.9.1
4.9.2
SLP_REQ Command .................................................................................... 36
SLP_REQ Response ..................................................................................... 37
4.10 Timing Requirements .................................................................................................. 37
4.10.1 Frame Delay Time Poll→Listen ................................................................... 37
4.10.2 Frame Delay Time Listen→Poll ................................................................... 40
4.10.3 Guard Time ................................................................................................... 42
5 NFC-B Technology ...................................................................................... 43
Sequence Format ......................................................................................................... 43
Poll→Listen Modulation .............................................................................. 43
5.1.1
Listen→Poll Modulation .............................................................................. 44
5.1.2
Synchronization ............................................................................................ 45
5.1.3
5.1.4
Pattern Synchronization ................................................................................ 48
5.1.5
De-synchronization ....................................................................................... 48
Bit Level Coding ......................................................................................................... 50
5.2.1
Poll→Listen Coding Scheme ........................................................................ 50
5.2.2
Listen→Poll Coding Scheme ........................................................................ 50
5.3
Frame Format .............................................................................................................. 51
5.4 Data and Payload Format ............................................................................................ 51
5.5
Command Set .............................................................................................................. 52
5.6 ALLB_REQ and SENSB_REQ .................................................................................. 52
ALLB_REQ and SENSB_REQ Command .................................................. 52
5.6.1
5.6.2
SENSB_RES Response ................................................................................ 55
SLOT_MARKER ........................................................................................................ 62
5.7.1
SLOT_MARKER Command ........................................................................ 62
5.7.2
SLOT_MARKER Response ......................................................................... 63
SLPB_REQ ................................................................................................................. 63
5.8.1
SLPB_REQ Command ................................................................................. 63
5.8.2
SLPB_RES Response ................................................................................... 63
Timing Requirements .................................................................................................. 63
Frame Delay Time Poll→Listen ................................................................... 63
5.9.1
Frame Delay Time Listen→Poll ................................................................... 66
5.9.2
5.9.3
Guard Time ................................................................................................... 68
6 NFC-F Technology ....................................................................................... 70
Sequence Format ......................................................................................................... 70
6.1.1 Modulation .................................................................................................... 70
Synchronization ............................................................................................ 71
6.1.2
6.1.3
De-synchronization ....................................................................................... 73
6.2
Bit Level Coding ......................................................................................................... 73
6.3
Frame Format .............................................................................................................. 73
6.4 Data and Payload Format ............................................................................................ 74
Command Set .............................................................................................................. 75
6.5
SENSF_REQ ............................................................................................................... 75
6.6
6.6.1
SENSF_REQ Command ............................................................................... 75
6.6.2
SENSF_RES Response ................................................................................. 78
Timing Requirements .................................................................................................. 83
Frame Delay Time Poll→Listen ................................................................... 83
6.7.1
6.7.2
Frame Delay Time Listen→Poll ................................................................... 85
Guard Time ................................................................................................... 87
6.7.3
6.7
5.7
5.8
5.9
6.1
NFC Digital Protocol
Page ii
8.7
7 Half-duplex Protocols ................................................................................. 88
8 Type 1 Tag Platform .................................................................................... 89
Sequence Format ......................................................................................................... 89
8.1
Bit Level Coding ......................................................................................................... 89
8.2
8.3
Frame Format .............................................................................................................. 89
8.4 Data and Payload Format ............................................................................................ 90
Command Set .............................................................................................................. 91
8.5
8.6
Read Identifier (RID) .................................................................................................. 92
RID Command .............................................................................................. 92
8.6.1
8.6.2
RID Response ............................................................................................... 93
Timing Requirements .................................................................................................. 93
8.7.1
Reader-Reader Data Delay ........................................................................... 93
Frame Delay Time ........................................................................................ 94
8.7.2
9 Type 2 Tag Platform .................................................................................... 96
Sequence Format ......................................................................................................... 96
9.1
Bit Level Coding ......................................................................................................... 96
9.2
9.3
Frame Format .............................................................................................................. 96
9.4 Data and Payload Format ............................................................................................ 97
Command Set .............................................................................................................. 98
9.5
9.6
READ .......................................................................................................................... 98
Command ...................................................................................................... 98
9.6.1
9.6.2
Response ....................................................................................................... 98
9.7 WRITE ........................................................................................................................ 99
Command ...................................................................................................... 99
9.7.1
9.7.2
Response ....................................................................................................... 99
SECTOR SELECT .................................................................................................... 100
9.8.1
SECTOR SELECT Command Packet 1 ..................................................... 100
SECTOR SELECT Command Packet 2 ..................................................... 100
9.8.2
9.8.3
Response ..................................................................................................... 100
Timing Requirements ................................................................................................ 102
10 Type 3 Tag Platform .................................................................................. 103
10.1 Sequence Format ....................................................................................................... 103
10.2 Bit Level Coding ....................................................................................................... 103
10.3 Frame Format ............................................................................................................ 103
10.4 Data and Payload Format .......................................................................................... 103
10.5 Command Set ............................................................................................................ 104
10.6 Timing Requirements ................................................................................................ 104
11 Type 4A Tag Platform ................................................................................ 106
11.1 Sequence Format ....................................................................................................... 106
11.2 Bit Level Coding ....................................................................................................... 106
11.3 Frame Format ............................................................................................................ 106
11.4 Data and Payload Format .......................................................................................... 106
11.5 Command Set ............................................................................................................ 107
11.6 Request for Answer to Select (RATS) ...................................................................... 107
11.6.1 RATS Command......................................................................................... 107
11.6.2 RATS Response (Answer To Select) .......................................................... 109
11.7 Timing Requirements ................................................................................................ 115
11.7.1 FWT ............................................................................................................ 115
9.8
9.9
NFC Digital Protocol
Page iii
11.7.2 SFGT ........................................................................................................... 117
12 Type 4B Tag Platform ................................................................................ 118
12.1 Sequence Format ....................................................................................................... 118
12.2 Bit Level Coding ....................................................................................................... 118
12.3 Frame Format ............................................................................................................ 118
12.4 Data and Payload Format .......................................................................................... 118
12.5 Command Set ............................................................................................................ 119
12.6 ATTRIB ..................................................................................................................... 119
12.6.1 ATTRIB Command .................................................................................... 119
12.6.2 ATTRIB Response ...................................................................................... 125
12.7 Timing Requirements ................................................................................................ 127
13 ISO-DEP Protocol ...................................................................................... 128
13.1 Block Format ............................................................................................................. 128
13.1.1 Block ........................................................................................................... 128
13.1.2 SoD ............................................................................................................. 129
13.1.3 Payload ....................................................................................................... 131
13.1.4 EoD ............................................................................................................. 131
13.2 Protocol Operation..................................................................................................... 132
13.2.1 General Rules .............................................................................................. 132
13.2.2 Frame Waiting Time Extension .................................................................. 132
13.2.3 Chaining ...................................................................................................... 135
13.2.4 Block Numbering Rules .............................................................................. 135
13.2.5 Block Handling Rules ................................................................................. 136
13.2.6 Exception Processing .................................................................................. 138
13.2.7 De-activation Rules..................................................................................... 140
13.3 Timing Requirements ................................................................................................ 142
14 NFC-DEP Protocol ..................................................................................... 143
14.1 Sequence Format ....................................................................................................... 143
14.2 Bit Level Coding ....................................................................................................... 143
14.3 Frame Format ............................................................................................................ 144
14.4 Data and Payload Format .......................................................................................... 144
14.5 Command Set ............................................................................................................ 145
14.6 Attribute Request (ATR_REQ) ................................................................................. 146
14.6.1 ATR_REQ Length ...................................................................................... 146
14.6.2 ATR_REQ Command ................................................................................. 146
14.6.3 ATR_RES Response ................................................................................... 149
14.7 Parameter Selection Request (PSL_REQ) ................................................................. 152
14.7.1 PSL_REQ Command .................................................................................. 152
14.7.2 PSL_RES Response .................................................................................... 154
14.8 Data Exchange Protocol Request (DEP_REQ) ......................................................... 154
14.8.1 DEP_REQ Command ................................................................................. 154
14.8.2 DEP_RES Response ................................................................................... 155
14.8.3 Protocol Format Byte (PFB) ....................................................................... 156
14.8.4 Response Timeout Extension ...................................................................... 157
14.9 Deselect Request (DSL_REQ) .................................................................................. 159
14.9.1 DSL_REQ Command ................................................................................. 160
14.9.2 DSL_RES Response ................................................................................... 160
14.10 Release Request (RLS_REQ) .................................................................................... 161
14.10.1 RLS_REQ Command ................................................................................. 161
NFC Digital Protocol
Page iv
14.10.2 RLS_RES Response ................................................................................... 162
14.11 Timing Requirements ................................................................................................ 163
14.12 NFC-DEP Protocol Operation ................................................................................... 165
14.12.1 General Rules .............................................................................................. 165
14.12.2 Chaining ...................................................................................................... 165
14.12.3 PDU Numbering Rules ............................................................................... 166
14.12.4 PDU Handling Rules .................................................................................. 167
14.12.5 Exception Processing .................................................................................. 168
A. Values ......................................................................................................... 170
A.1 NFC-A Technology ................................................................................................... 170
A.2 NFC-B Technology ................................................................................................... 171
A.3 NFC-F Technology .................................................................................................... 172
A.4 Type 1 Tag Platform .................................................................................................. 172
A.5 Type 2 Tag Platform .................................................................................................. 172
A.6 Type 3 Tag Platform .................................................................................................. 173
A.7 Type 4A Tag Platform ............................................................................................... 173
A.8 Type 4B Tag Platform ............................................................................................... 173
A.9
ISO-DEP Protocol ..................................................................................................... 174
A.10 NFC-DEP Protocol .................................................................................................... 174
B. Revision History ........................................................................................ 175
NFC Digital Protocol
Page v
Figures
Figure 1: Modified Miller Coding with ASK 100%...................................................................... 15
Figure 2: Manchester Coding with OOK ...................................................................................... 17
Figure 3: Short Frame .................................................................................................................... 22
Figure 4: Standard Frame (Poll→Listen Communication) ........................................................... 22
Figure 5: Bit Oriented SDD Frame (with Split after the First Bit of the Second Byte) ................ 23
Figure 6: Data and Payload Format – NFC-A Standard Frame..................................................... 24
Figure 7: Example: SDD_REQ with 14 Data Bits of NFCID1 CL1 (4 Bytes Size) and SDD_RES
....................................................................................................................................................... 33
Figure 8: FDTA,LISTEN ..................................................................................................................... 38
Figure 9: tnn,min for NFC-A ............................................................................................................. 40
Figure 10: FDTA,POLL ..................................................................................................................... 41
Figure 11: NRZ-L Coding ............................................................................................................. 43
Figure 12: NRZ-L Coding with BPSK .......................................................................................... 44
Figure 13: Synchronization and Timing Parameters between a Listen Frame and a Poll Frame .. 45
Figure 14: Synchronization and Timing Parameters between a Poll Frame and a Listen Frame .. 46
Figure 15: NFC-B – Character Format .......................................................................................... 51
Figure 16: NFC-B – Frame Format ............................................................................................... 51
Figure 17: Data and Payload Format – NFC-B ............................................................................. 52
Figure 18: tnn,min for NFC-B ........................................................................................................... 66
Figure 19: Manchester Coding with ASK Modulation ................................................................. 70
Figure 20: Signal Synchronization and Timing Parameters .......................................................... 72
Figure 21: NFC-F – Character Format .......................................................................................... 74
Figure 22: NFC-F – Frame Format ............................................................................................... 74
Figure 23: Data and Payload Format – NFC-F.............................................................................. 74
Figure 24: Collision Resolution (Example) ................................................................................... 78
Figure 25: Frame Format – Type 1 Tag Platform in Poll Mode .................................................... 89
Figure 26: Data and Payload Format – Type 1 Tag ...................................................................... 90
Figure 27: Reader-Reader Data Delay (RRDD) ............................................................................ 94
Figure 28: Data and Payload Format – Type 2 Tag (except for ACK and NACK Response) ...... 97
Figure 29: Data and Payload Format – Type 4A Tag .................................................................. 107
Figure 30: Block Format ............................................................................................................. 128
Figure 31: Data and Payload Format – NFC-DEP Protocol ........................................................ 144
NFC Digital Protocol
Page vi
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