Rainbow-electronics MAX66020 Manual do Utilizador descarregar pdf (Página 15)

MAX66020

IDLE

READY

POWER-OFF

WAITING FOR

SLOT-MARKER*

ACTIVEHALT

ANY OTHER COMMAND

IN FIELD

ANY OTHER

COMMAND

OR CASE

OUT OF FIELD

(FROM ANY STATE)

ANY OTHER COMMAND

RESPONSE LEGEND:

*WHEN ENTERING “WAITING FOR SLOT-MARKER,” EACH TAG SELECTS A RANDOM NUMBER R IN THE RANGE OF 1 TO “NUMBER OF SLOTS.”

DESELECT

(SPECIAL CASE OF A BLOCK TRANSMISSION

PROTOCOL FUNCTION)

ATQB RESPONSE1

BMS

ATTRIB RESPONSE2

HLTB RESPONSE3

DESELECT RESPONSE4

ANY OTHER

COMMAND

OR CASE

ANY OTHER

COMMAND OR CASE

ATTRIB WITH

MATCHING PUPI

HLTB WITH

MATCHING PUPI

EXECUTIVE BLOCK

TRANSMISSION

PROTOCOL FUNCTION

Figure 17. ISO/IEC 14443 Type B State Transitions Diagram

NAME DESCRIPTION RESULT

A (AFI MISMATCH) REQB/WUPB WITH NONMATCHING AFI

a WUPB WITH NONMATCHING AFI

RETURN TO IDLE

B (BYPASS SM) REQB/WUPB WITH MATCHING AFI AND [(N = 1) OR [R = 1)]

b WUPB WITH MATCHING AFI AND [(N = 1) OR [R = 1)]

TRANSITION DIRECTLY TO READY

S (SLOT-MARKER) REQB/WUPB WITH MATCHING AFI AND (N  1) AND (R  1)

s WUPB WITH MATCHING AFI AND (N  1) AND (R  1)

WAIT FOR MATCHING SLOT NUMBER

MS (MATCHING SLOT) SLOT-MARKER COMMAND WITH SLOT NUMBER = R TRANSITION TO READY WITH MATCHING SLOT-MARKER

CONDITIONS LEGEND:

ISO/IEC 14443 Type B-Compliant

1Kb Memory Fob

______________________________________________________________________________________ 15

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 24 25

MAX66020 1
1Kb Memory Fob 1

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