02/653201 DC : DRAFT OCT 2002

Foreword
Introduction
1 Scope
   1.1 Tag types
   1.2 Compliance rules
        1.2.1 Tag
        1.2.2 Interrogator
   1.3 Conformance rules
2 Definitions, abbreviations and symbols
   2.1 Definitions
        2.1.1 Anticollision Loop
        2.1.2 Byte
   2.2 Abbreviations
   2.3 Symbols
3 Physical layer
   3.1 Type A (FDX)
        3.1.1 Power Transfer
        3.1.2 Frequency
        3.1.3 Communication signal interface interrogator to tag
        3.1.4 Communication signal interface tag to interrogator
   3.2 Type B (HDX)
        3.2.1 Power transfer
        3.2.2 Communication signal interface interrogator to tag
        3.2.3 Communication signal interface tag to interrogator
   3.3 Physical and Media Access Control (MAC) Parameters
        3.3.1 Interrogator to tag link
        3.3.2 Tag to interrogator link
4 Transmission Protocol
   4.1 Basic elements
   4.2 Unique identifier
        4.2.1 Unique identifier (UID)
        4.2.2 Sub-UID
   4.3 Request format
   4.4 Response format
   4.5 Request flags
        4.5.1 AFI flag
        4.5.2 NOS flag
        4.5.3 SEL flag and ADR flag
        4.5.4 CRCT flag
        4.5.5 PEXT flag
   4.6 Error flag
   4.7 Block security status
   4.8 Start of frame pattern (SOF)
        4.8.1 Interrogator request
        4.8.2 Tag response
   4.9 End of frame pattern (EOF)
        4.9.1 Interrogator request
        4.9.2 Tag response
   4.10 CRC
   4.11 Application family identifier (AFI)
   4.12 Data storage format identifier (DSFID)
5 Memory organisation
   5.1 Block size
   5.2 System data
6 Tag states
   6.1 Power-off state
   6.2 Ready state
   6.3 Quiet state
   6.4 Selected state
   6.5 State diagram
7 Anticollision
   7.1 Request parameters
   7.2 Request processing by the tag
   7.3 Explanation of anticollision sequences
        7.3.1 Anticollision sequence with 1 slot
        7.3.2 Anticollision sequence with 16 slots
        7.3.3 Mixed population with tags of type A and B
8 Commands
   8.1 Command classification
   8.2 Command list
   8.3 Mandatory commands
        8.3.1 INVENTORY
        8.3.2 READ SUID
        8.3.3 STAY QUIET
   8.4 Optional commands
        8.4.1 READ SINGLE BLOCK
        8.4.2 READ SINGLE BLOCK WITH SECURITY STATUS
        8.4.3 READ MULTIPLE BLOCKS
        8.4.4 READ MULTIPLE BLOCKS WITH SECURITY STATUS
        8.4.5 WRITE SINGLE BLOCK
        8.4.6 WRITE MULTIPLE BLOCKS
        8.4.7 LOCK BLOCK
        8.4.8 GET SYSTEM INFORMATION
        8.4.9 SELECT
        8.4.10 RESET TO READY
        8.4.11 WRITE SYSTEM DATA
        8.4.12 LOCK SYSTEM DATA
   8.5 Custom commands
   8.6 Proprietary commands
9 Protocol timing specifications
   9.1 Type A (FDX)
        9.1.1 Tag waiting time before transmitting its response after
               reception of an EOF from the interrogator
        9.1.2 Interrogator waiting time before sending a subsequent
               request
        9.1.3 Interrogator waiting time before switching to the
               next slot during an inventory process
   9.2 Type B (HDX)
        9.2.1 Tag waiting time before transmitting its response
               after reception of an EOF from the interrogator
        9.2.2 Interrogator waiting time before sending a
               subsequent request
        9.2.3 Interrogator waiting time before switching to the
               next slot during an inventory process
        9.2.4 Tag charge and re-charge
10 Protocol parameters
11 Anticollision parameters
Annex A (normative) CRC Check for Error Detection
        A.1 Description
        A.2 CRC check source code example
Annex B (informative) Alternative carrier frequency for Type B
        operating fields
        B.1 Description
Annex C (informative) Description of a typical anticollision
        sequence with tags of types A and B
        C.1 Description
Annex D (informative) Optional anticollision mechanism
        D.1 Introduction
        D.2 Description
        D.3 Physical layer for the Multi-read command
            D.3.1 Power transfer
            D.3.2 Frequency
            D.3.3 Interrogator to tag
            D.3.4 Tag to interrogator
            D.3.5 Parameters for optional Multi-read command
        D.4 Multi-read command
            D.4.2 Request flags
        D.5 Anticollision mechanism
            D.5.1 Acknowledgement by the interrogator
            D.5.2 Acknowledgement by the tag
            D.5.3 Timing
            D.5.4 Explanation of an anticollision sequence
        D.6 Protocol and anti-collision Parameters
            D.6.1 Protocol Parameters
            D.6.2 Anti-collision Protocol