ISO/IEC 14443-4:2001/Amd 1:2006

INTERNATIONAL ISO/IEC
STANDARD 14443-4
First edition
2001-02-01
AMENDMENT 1
2006-03-15


Identification cards — Contactless
integrated circuit(s) cards — Proximity
cards —
Part 4:
Transmission protocol
AMENDMENT 1: Handling of reserved fields
and values
Cartes d'identification — Cartes à circuit(s) intégré(s) sans contact —
Cartes de proximité —
Partie 4: Protocole de transmission
AMENDEMENT 1: Maniement de champs et valeurs réservés




Reference number
ISO/IEC 14443-4:2001/Amd.1:2006(E)
©
ISO/IEC 2006

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ISO/IEC 14443-4:2001/Amd.1:2006(E)
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ii © ISO/IEC 2006 – All rights reserved

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ISO/IEC 14443-4:2001/Amd.1:2006(E)
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are members of
ISO or IEC participate in the development of International Standards through technical committees
established by the respective organization to deal with particular fields of technical activity. ISO and IEC
technical committees collaborate in fields of mutual interest. Other international organizations, governmental
and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information
technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of the joint technical committee is to prepare International Standards. Draft International
Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as
an International Standard requires approval by at least 75 % of the national bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.
Amendment 1 to ISO/IEC 14443-4:2001 was prepared by Joint Technical Committee ISO/IEC JTC 1,
Information technology, Subcommittee SC 17, Cards and personal identification.
As part of maintaining ISO/IEC 14443-4:2001, a need was raised to better clarify the handling of fields and
values reserved by ISO/IEC for future use. This Amendment addresses the required document
enhancements.
ISO/IEC 14443-4:2001 defines certain fields and values as Reserved for Future Use (RFU) by new ISO/IEC
rules that may be added in later versions. This Amendment includes clarification that products in conformity
with ISO/IEC 14443-4:2001 shall not improperly use RFU fields and values, plus documentation of product
behaviour that, when followed by PICC and PCD designs commenced after publication of
ISO/IEC 14443-4:2001, should assist with backward compatibility and interoperability for future definition by
ISO of RFU fields and values. Consequently, many of the references to “should” may be changed into a
definitive “shall” in the second edition of ISO/IEC 14443-4:2001; thus, it is recommended to implement them at
this time.
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ISO/IEC 14443-4:2001/Amd.1:2006(E)
Identification cards — Contactless integrated circuit(s) cards —
Proximity cards —
Part 4:
Transmission protocol
AMENDMENT 1: Handling of reserved fields and values
Page 3, Clause 4 “Symbols and abbreviated terms”
Replace the definition of RFU with the following: “Reserved for Future Use by ISO/IEC”.
Page 6, Subclause 5.1 “Request for answer to select”
Add the following paragraphs as the last paragraphs in the subclause:
“A PCD setting FSDI = '9'-'F' is not compliant with this standard.
A received value of FSDI = '9'-'F' should be interpreted by the PICC as FSDI = '8' (FSD = 256 bytes).
A PCD setting CID = 15 is not compliant with this standard.
For PICC behaviour see 5.6.1.2 (c).”
Page 7, Subclause 5.2.3 “Format byte”
Add the following paragraphs as the last paragraphs in the subclause:
“A PICC setting FSCI = '9'-'F' is not compliant with this standard.
A received value of FSCI = '9'-'F' should be interpreted by the PCD as FSCI = '8' (FSC = 256 bytes).
A PICC not setting b8 to 0 is not compliant with this standard.
The PCD should ignore b8 and its interpretation of any other field of the whole frame shall not change.”
Page 8, Subclause 5.2.4 “Interface byte TA(1)”
Add the following paragraphs as the last paragraphs in the subclause:
“A PICC setting b4 = 1 is not compliant with this standard.
A received value of TA(1) with b4 = 1 should be interpreted by the PCD as (b8 to b1) = (00000000)b
(only ~106 kbit/s in both directions).”

Page 9, Subclause 5.2.5 “Interface byte TB(1)”
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ISO/IEC 14443-4:2001/Amd.1:2006(E)
Add the following paragraphs as the last paragraphs in the subclause:
“A PICC setting SFGI = 15 is not compliant with this standard.
Until the RFU value 15 is assigned by ISO, a PCD receiving SFGI = 15 should interpret it as SFGI = 0.
A PICC setting FWI = 15 is not compliant with this standard.
Until the RFU value 15 is assigned by ISO, a PCD receiving FWI = 15 should interpret it as FWI = 4.”
Page 9, Subclause 5.2.6 “Interface byte TC(1)”
Add the following paragraphs as the last paragraphs in the subclause:
“A PICC setting (b8 to b3) <> (000000)b is not compliant with this standard.
The PCD should ignore (b8 to b3) and its interpretation of (b2,b1) or of any other field of the whole frame shall
not change.”
Page 10, Subclause 5.3.1 “Start byte”
Replace the first list item with the following:
“
⎯ The most significant half byte b8 to b5 shall be set to (1101)b and identifies the PPS.
”
In Figure 10, remove the arrows and RFU and link up bits b8 to b5 in one arrow marked as (1101)b as follows:
b8 b7 b6 b5 b4 b3 b2 b1
1 1 0 1
CID
PPS = (1101)b

Page 11, Subclause 5.3.2 “Parameter 0”
Add the following paragraphs as the last paragraphs in the subclause:
“A PCD setting (b4 to b1) <> (0001)b and/or setting (b8 to b6) <> (000)b is not compliant with this standard.
A PICC receiving (b4 to b1) <> (0001)b and/or receiving (b8 to b6) <> (000)b shall apply 5.6.2.2 (b).”

Page 11, Subclause 5.3.3 “Parameter 1”
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ISO/IEC 144
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