User's Manual

APPENDIX B: HF RFID STANDARDS AND TAG DESCRIPTIONS 35
Appendix B
HF RFID Standards and Tag Descriptions
ISO15693
The ISO/IEC 15693 standard was developed for “Contactless Vicinity Cards”. Adopted in 1998, ISO15693
has significantly enabled global acceptance of 13.56MHz RFID technology. Based on contributions by
Texas Instruments and Philips, ISO/IEC 15693 is largely a superset of the features and specifications of the
Tag-it HF and I·Code1 products, respectively.
• ISO15693-1: Defines the physical characteristics of a credit card transponder.
• ISO15693-2: Specifies the 13.56MHz air interface and modulation methods that accommodate
regulatory bodies worldwide.
• ISO15693-3: Specifies the command protocol and anti-collision method for data exchange between
tags and readers.
The ISO15693 “standard” permits tags to be manufactured that support optional and custom commands,
and that have custom memory structures, sizes and architectures. The SkyeRead family of RFID readers
fully supports all four (4) IC manufacturers that offer ISO/IEC 15693 compatible tags.
Tag-It HF-I ISO15693 (Texas Instruments)
The complete Tag-It HF-I specification can be found in the Texas Instruments publication titled “Tag-It
HF-I Transponder Inlays Reference Guide”.
Figure 1 - Memory Structure of the Tag-It HF-I
2K bits (256 bytes) of user memory is available for read/write.
Block #
32 bits
(4 bytes per block)
0 (0x00)
1 (0x01)
2 (0x02)
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
62 (0x3E)
63 (0x3F)
The user can permanently lock
any block.
Once a block is locked it can
not be unlocked.
A 64-bit ID (factory programmed) uniquely identifies each Tag-It HF-I chip.
TID 0xE0 0x07 Unique Tag ID - 48 bits (6 bytes)