Rainbow Electronics MAX66040 - Manual (Page 15)

MAX66040
ISO/IEC 14443 Type B-Compliant
Secure Memory
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ABRIDGED DATA SHEET
TERM DESCRIPTION
ACTIVE One of the slave’s six states. In this state, the memory and control function commands and deselect apply.
ADC Application Data Coding. 2-Bit field of the 3rd protocol info byte of the ATQB response.
AFI Application Family Identifier. 1-Byte field used in the REQB/WUPB request to preselect slaves.
ATQB Answer to Request, Type B. Response to REQB, WUPB, and SLOT-MARKER command.
ATTRIB Slave Selection Command, Type B. Used to transition a slave from READY to the ACTIVE state.
BPSK Binary Phase-Shift Keying Modulation
CID
Card Identifier. 4-Bit temporary identification number assigned to a slave through the ATTRIB command, used
in conjunction with the block transmission protocol.
EOF End of Frame
DESELECT Slave Deselection Command. Transitions the slave from the ACTIVE state to the HALT state.
fc Carrier Frequency = 13.56MHz
FO Frame Option. 2-Bit field of the 3rd protocol info byte of the ATQB response.
fs Subcarrier Frequency = f c /16 = 847.5kHz
FWI Frame-Waiting Time Integer. 4-bit field of the 3rd protocol info byte of the ATQB response.
FWT Frame-Waiting Time. Calculated from FWI.
HALT One of the slave’s six states. The master puts a slave in this state to park it.
HLTB Halt Command, Type B
IDLE One of the slave’s six states. In this state, the slave has power and is waiting for action.
INF Information Field for Higher Layer Protocol (per ISO/IEC 14443-4)
MBLI
Maximum Buffer Length Index of Slave (per ISO/IEC 14443-4). 4-Bit field of the first protocol info byte of the
ATQB response.
N Number of Anticollision Slots (or response probability per slot)
NAD Node Address (per ISO/IEC 14443-4)
POWER-OFF One of the slave’s six states. In this state, the slave has no power and consequently cannot do anything.
PUPI Pseudo Unique Identifier. 4-Byte field of the ATQB response.
R 4-Bit Random Number Chosen by a Slave When Processing the REQB or WUPB Command
READY
One of the slave’s six states; official name is READY-DECLARED SUBSTATE. In this state, the slave has
identified itself and is waiting for transition to ACTIVE (memory and control functions) or HALT (parking).
REQB Request Command, Type B. Used to probe the RF field for the presence of slave devices.
RF Radio Frequency
S Slot Number. 4-Bit field sent to slave with SLOT-MARKER command.
SLOT-MARKER Command used in the time-slot approach to identify slaves in the RF field
SOF Start of Frame
TR0 Guard Time per ISO/IEC 14443-2
TR1 Synchronization Time per ISO/IEC 14443-2
WAITING FOR
SLOT-MARKER One of the slave’s six states; official name is READY-REQUESTED SUBSTATE. In this state, the slave is
waiting to be called by its random number R to transition to READY.
WUPB Wake-Up Command, Type B. Similar to REQB, required to wake up slaves in the HALT state.
Table 14. ISO/IEC 14443 Type B Technical Terms