NFC Data Exchange Format (NDEF) --NFC(近场通信)首批技术规范
Contents1Overview .......................................................
1.1 Objectives................................................................
1.1.1Design Goals ..............................................
1.1.2Anti-Goals ..................................................
1.2 References ...............................................................
1.3 Administration.........................................................
1.4 Special Word Usage ................................................
1.5 Name and Logo Usage ............................................
1.6Intellectual Property ................................................
1.7 Glossary...................................................................
2NDEF Mechanisms .......................................
2.1Introduction .............................................................
2.2Intended Usage ........................................................
2.3 NDEF Encapsulation Constructs.............................
2.3.1Message......................................................
2.3.2Record ........................................................
2.3.3Record Chunks ...........................................
2.4 NDEF Payload Description.....................................
2.4.1Payload Length...........................................
2.4.2Payload Type..............................................
2.4.3Payload Identification.................................
2.5 NDEF Mechanisms Test Requirements ..................
3The NDEF Specification ...............................
3.1 Data Transmission Order.........................................
3.2 Record Layout .........................................................
3.2.1MB (Message Begin)..................................
3.2.2ME (Message End).....................................
3.2.3CF (Chunk Flag).........................................
3.2.4SR (Short Record) ......................................
3.2.5IL (ID_LENGTH field is present)..............
3.2.6TNF (Type Name Format) .........................
3.2.7TYPE_LENGTH........................................
3.2.8ID_LENGTH..............................................
3.2.9PAYLOAD_LENGTH...............................
3.2.10TYPE..........................................................
3.2.11ID................................................................
3.2.12PAYLOAD.................................................
3.3 THE NDEF Specification Test Requirements.........
4Special Considerations................................
4.1Internationalization..................................................
4.2 Security....................................................................
4.3 Maximum Field Sizes..............................................
4.4 Use of URIs in NDEF .............................................
4.5 Special Consideration Test Requirements...............
A.Revision History ...........................................
Figures
Figure 1. Example of an NDEF Message with a Set of Records.....................
Figure 2. NDEF Octet Ordering ......................................................................
Figure 3. NDEF Record Layout ......................................................................
Figure 4. NDEF Short-Record Layout (SR=1)................................................
Tables
Table 1. TNF Field Values ..............................................................................
Table 2. Revision History................................................................................
Test Requirements
Test Requirements 1. NDEF Mechanisms Test Requirements .......................
Test Requirements 2. The NDEF Specification Test Requirements ...............
Test Requirements 3. Special Consideration Test Requirements....................
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