SL3ICS3001 datasheet(30/54 Pages) NXP

30 / 54 page

SL3ICS3001_072831

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Product data sheet

COMPANY PUBLIC

Rev. 3.1 — 9 July 2012

072831

30 of 54

NXP Semiconductors

SL3ICS3001

UCODE HSL

11.2.4 GROUP_SELECT_GT

When receiving a GROUP_SELECT_GT command, a tag which is in the READY state

reads the 8-byte memory content beginning at the specified ADDRESS and compares it

with the WORD_DATA sent by the interrogator. In case the memory content is greater

than WORD_DATA the tag sets its internal counter COUNT to logic 0, reads its UID,

sends back the UID and goes into the state ID.

When receiving a GROUP_SELECT_GT command, a tag which is in the ID state sets its

internal counter COUNT to logic 0, reads its UID, sends back the UID and stays in the ID

state.

In all other cases the tag will not send any reply.

11.2.5 GROUP_SELECT_LT

When receiving a GROUP_SELECT_LT command, a tag which is in the READY state

reads the 8-byte memory content beginning at the specified ADDRESS and compares it

with the WORD_DATA sent by the interrogator. In case the memory content is lower than

WORD_DATA the tag sets its internal counter COUNT to logic 0, reads its UID, sends

back the UID and goes into the state ID.

When receiving a GROUP_SELECT_LT command, a tag which is in the ID state sets its

internal counter COUNT to logic 0, reads its UID, sends back the UID and stays in the ID

state.

In all other cases the tag will not send any reply.

Command sequence

Preamble Start Delimiter

Command ADDRESS BYTE_MASK

WORD_DATA CRC

Response sequence in case the tag is in the ID state or meeting selection criteria

Return Preamble ID

CRC

Command sequence

Preamble Start Delimiter Command ADDRESS BYTE_MASK WORD_DATA

CRC

Response sequence in case the tag is in the ID state or meeting selection criteria

Return Preamble ID

CRC

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