User's Manual

ACR1281S
Advanced Card Systems Ltd. Page 6 of 56
TERMS
IFD: Interface Device. A terminal, communication device, or machine to which the
integrated circuit(s) card is electrically connected during operation.
PCD: Proximity Coupling Device. ISO 14443 Contactless Reader.
ICC: Integrated Circuit(s) Card. Refer to a plastic card containing an integrated circuit,
which is compatible with ISO 7816.
PICC: Proximity Integrated Circuit(s) Card. Contactless Cards operating without
mechanical contact to the IFD, using magnetic coupling.
Combi-Card: A smart card that supports both ICC and PICC Interfaces. But only one
interface can be operating at any one time.
Hybrid-Card: A smart card that consists of both ICC and PICC cards. Both ICC and PICC
cards can be operating at the same time.
USB: Universal Serial Bus, a common device interface used in PC environment.
CCID: The specifications for USB devices that interface with ICC or act as interfaces with
ICC/PICC.
PCSC: Personal Computer Smart Card, a specification that can facilitate the interoperability
necessary to allow ICC/PICC technology to be effectively utilized in the PC environment.
ISO 7816: A standard for contact smart cards (ICC).
T=0: Character-oriented asynchronous half duplex transmission protocol for ICCs (ISO
7816).
T=1: Block-oriented asynchronous half duplex transmission protocol for ICCs (ISO 7816).
ISO 14443: A standard for contactless smart cards (PICC)
T=CL: Block-oriented asynchronous half duplex transmission protocol for PICCs (ISO
14443).
APDU: Application Protocol Data Unit.
ATR: Answer-to-Reset. The transmission sent by an ICC to the reader (IFD) in response to
a RESET condition.
ATS: Answer-to-Select. The transmission sent by a PICC Type A to the reader (PCD) in
response to a SELECT condition.
ATQB: Answer-to-Request. The transmission sent by a PICC Type B to the reader (PCD)
in response to a REQUEST condition.
Card Insertion Event: Either an ICC or a PICC is just appeared to the reader.
Card Removal Event: Either an ICC or a PICC is removed from the reader.
NAK: Negative Acknowledge, only used to get the last response or slot change message
report in ACR1281S.
XOR : Exclusive OR
RDR: ACR1281S.
HOST: Host Controller.
HOST_to_RDR: Host Controller -> ACR1281S
RDR_to_HOST: ACR1281S -> Host Controlle