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Rainbow Electronics MAX66100 User Manual

Page 9

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selected state and transition to the ready or the quiet
state upon receiving the Reset to Ready command sent
in any address mode or the Stay Quiet command sent
in the addressed mode. A slave also transitions from
selected to ready upon receiving a Select command if
the UID in the request is different from the slave’s own
UID. In this case the master’s intention is to transition

another slave with the matching UID to the selected
state. If the slave already in the selected state does not
recognize the command (e.g., due to a bit error), two
slaves could be in the selected state. To prevent this
from happening, the master should use the Reset to
Ready or the Stay Quiet command to transition a slave
out of the selected state.

MAX66100

ISO 15693-Compliant 64-Bit UID

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9

Figure 15. ISO 15693 State Transitions Diagram

POWER-OFF

READY

SELECTED

QUIET

IN FIELD

NOTE 1

NOTE 3

OUT OF FIELD

OUT OF FIELD

RESET TO READY
[N, A, S]

OUT OF FIELD

NOTE 2

RESPONSE LEGEND:

NOTE 1: THE SLAVE PROCESSES THE INVENTORY COMMAND AND OTHER COMMANDS PROVIDED THAT THEY ARE SENT IN THE [N] OR [A] ADDRESS MODE.
NOTE 2: THE SLAVE PROCESSES ONLY COMMANDS SENT IN THE [A] ADDRESS MODE.
NOTE 3: THE SLAVE PROCESSES THE INVENTORY COMMAND AND OTHER COMMANDS IN ANY ADDRESS MODE.

RESPONSE TO

RESET TO READY

RESET TO READY [A]

MATCHING UID

STAY QUIET [A]
MATCHING UID

SELECT [A],
NONMATCHING UID

RESPONSE TO

SELECT

NO RESPONSE

STAY QUIET [A] MATCHING UID

SELECT [A]

MATCHING UID

SELECT [A] MATCHING UID

ADDRESS MODE LEGEND:

[N] NONADDRESSED
[A] ADDRESSED
[S] SELECTED