section – 4 Abbreviations and Notation

For the latest version of ISO7816 part 4, please contact ISO in Switzerland.

ISO 7816-4, Section 4 – Abbreviations and Notation

For the purposes of this part of the ISO/IEC 7816, the following abbreviations apply :

APDUApplication protocol data unit
ATRAnswer to reset
BERBasic encoding rules of ASN.1 annex D
CLAClass byte
DIR Directory
DFDedicated file
EFElementary file
FCIFile control information
FCPFile control parameter
FMDFile management data
INSInstruction byte
MFMaster file
P1-P2Parameter bytes
PTSProtocol type selection
RFUReserved for future use
SMSecure messaging
SW1-SW2Status bytes
TLVTag length value
TPDUTransmission protocol data unit

For the purposes of this part of ISO/IEC 7816, the following notation applies :

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‘0’-‘9’ and ‘A’-‘F’The sixteen hexadecimal digits
(B1)Value of byte B1
B1||B2Concatenation of bytes B1 (the most significant byte) and B2 (the least significant byte)
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