© ISO/IEC 2006 — All rights reserved 4
7.5 Timing specifications .......................................................................................................................... 70
7.5.1 Timing specifications general ............................................................................................................ 70
7.5.2 Tag state storage ................................................................................................................................. 70
7.5.3 Forward link to return link handover ................................................................................................. 70
7.5.4 Return link to forward link handover ................................................................................................. 70
7.5.5 Acknowledgement time window ........................................................................................................ 70
7.6 Command format examples ............................................................................................................... 72
7.7 Mandatory commands ........................................................................................................................ 73
7.7.1 Mandatory commands general .......................................................................................................... 73
7.7.2 Next_slot .............................................................................................................................................. 73
7.7.3 Standby_round .................................................................................................................................... 74
7.7.4 Reset_to_ready .................................................................................................................................... 75
7.7.5 Init_round_all ....................................................................................................................................... 76
7.8 Optional commands ............................................................................................................................ 78
7.8.1 Optional commands general .............................................................................................................. 78
7.8.2 Init_round ............................................................................................................................................. 78
7.8.3 Close_slot ............................................................................................................................................ 79
7.8.4 New_round ........................................................................................................................................... 80
7.8.5 Select (by SUID) ................................................................................................................................... 82
7.8.6 Read_blocks ........................................................................................................................................ 83
7.8.7 Get_system_information .................................................................................................................... 87
7.8.8 Begin_round ........................................................................................................................................ 90
7.8.9 Write_single_block .............................................................................................................................. 92
7.8.10 Write_multiple_blocks ........................................................................................................................ 94
7.8.11 Lock_blocks ......................................................................................................................................... 96
7.8.12 Write_AFI .............................................................................................................................................. 98
7.8.13 Lock_AFI ............................................................................................................................................ 100
7.8.14 Write_DSFID command ..................................................................................................................... 102
7.8.15 Lock_DSFID ....................................................................................................................................... 104
7.8.16 Get_blocks_lock_status ................................................................................................................... 106
7.8.17 Init_Fast_Slots ................................................................................................................................... 108
7.9 Custom commands ........................................................................................................................... 111
7.10 Proprietary commands ..................................................................................................................... 113
8 Type B ................................................................................................................................................. 113
8.1 Physical layer and data coding ........................................................................................................ 113
8.1.1 Forward link ....................................................................................................................................... 113
8.1.2 Return link .......................................................................................................................................... 115
8.1.3 Protocol concept ............................................................................................................................... 115
8.1.4 Command format ............................................................................................................................... 116
8.1.5 Response format ............................................................................................................................... 117
8.1.6 WAIT .................................................................................................................................................... 118
8.1.7 Examples of a command packet ...................................................................................................... 118
8.1.8 Communication sequences at packet level .................................................................................... 119
8.2 Btree protocol and collision arbitration .......................................................................................... 120
8.2.1 Definition of data elements, bit and byte ordering ........................................................................ 120
8.2.2 Tag memory organisation ................................................................................................................ 121
8.2.3 Block security status ........................................................................................................................ 121
8.2.4 Overall protocol description, Btree protocol .................................................................................. 121
8.2.5 Collision arbitration ........................................................................................................................... 127
8.2.6 Commands ......................................................................................................................................... 129
8.2.7 Command types ................................................................................................................................. 129
8.2.8 Transmission errors .......................................................................................................................... 154
9 Type C ................................................................................................................................................. 154
9.1 Protocol overview .............................................................................................................................. 154
9.1.1 Physical layer ..................................................................................................................................... 154
9.1.2 Tag-identification layer ..................................................................................................................... 155
9.2 Command types and command structure ...................................................................................... 155
9.2.1 General ............................................................................................................................................... 155
9.2.2 Mandatory .......................................................................................................................................... 155
9.2.3 Optional .............................................................................................................................................. 155
9.2.4 Custom ............................................................................................................................................... 155
9.2.5 Proprietary ......................................................................................................................................... 155
9.3 Description of operating procedure ................................................................................................ 155