MAX66040 Maxim, MAX66040 Datasheet - Page 14

• Manufacturer Part Number: MAX66040
• Description: The MAX66040 combines 1024 bits of user EEPROM with secure hash algorithm (SHA-1) challenge-and-response authentication (ISO/IEC 10118-3 SHA-1), a 64-bit unique identifier (UID), one 64-bit secret, and a 13
• Manufacturer: Maxim

Figure 17. ISO/IEC 14443 Type B State Transitions Diagram
ANY OTHER COMMAND
*WHEN ENTERING “WAITING FOR SLOT-MARKER,” EACH TAG SELECTS A RANDOM NUMBER R IN THE RANGE OF 1 TO “NUMBER OF SLOTS.”
CONDITIONS LEGEND:
A (AFI MISMATCH)
a
B (BYPASS SM)
b
S (SLOT-MARKER)
s
MS (MATCHING SLOT)
a
______________________________________________________________________________________
ABRIDGED DATA SHEET
s
(FROM ANY STATE)
HALT
OUT OF FIELD
REQB/WUPB WITH NONMATCHING AFI
WUPB WITH NONMATCHING AFI
REQB/WUPB WITH MATCHING AFI
WUPB WITH MATCHING AFI
REQB/WUPB WITH MATCHING AFI
WUPB WITH MATCHING AFI
SLOT-MARKER COMMAND WITH SLOT NUMBER = R
b
ISO/IEC 14443 Type B-Compliant
1
3
A
MATCHING PUPI
(SPECIAL CASE OF A BLOCK TRANSMISSION
HLTB WITH
4
MS
COMMAND OR CASE
PROTOCOL FUNCTION)
SLOT-MARKER*
WAITING FOR
[(N = 1)
(N 1)
POWER-OFF
ANY OTHER
DESELECT
READY
IDLE
1
[(N = 1)
(N 1)
IN FIELD
S
[R = 1)]
(R 1)
B
[R = 1)]
(R 1)
ATTRIB WITH
ANY OTHER
ANY OTHER
MATCHING PUPI
COMMAND
OR CASE
COMMAND
OR CASE
S
1
RETURN TO IDLE
TRANSITION DIRECTLY TO READY
WAIT FOR MATCHING SLOT NUMBER
TRANSITION TO READY WITH MATCHING SLOT-MARKER
2
ACTIVE
Secure Memory
A
ANY OTHER COMMAND
RESPONSE LEGEND:
PROTOCOL FUNCTION
1
2
3
4
EXECUTIVE BLOCK
TRANSMISSION
ATQB RESPONSE
ATTRIB RESPONSE
HLTB RESPONSE
DESELECT RESPONSE
B
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