SL3ICS3001 datasheet(39/54 Pages) NXP

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SL3ICS3001_072831

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Product data sheet

COMPANY PUBLIC

Rev. 3.1 — 9 July 2012

072831

39 of 54

NXP Semiconductors

SL3ICS3001

UCODE HSL

11.4.6 READ_PORT

When receiving the READ_PORT command, a tag which is in any powered state tag

compares the sent ID with its UID. In case the ID is equal to the UID, the tag moves to the

DATA_EXCHANGE state and reads the 8-bit memory content beginning at the specified

port-address and sends back its content in the response.

[1]

RFU ... default 0

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

See Section 11.4.13 “Exception handling for fast return link mode” for a special return link

behaviour if the 4x STDEL is used.

Table 27.

READ_PORT

Bit8(MSB) Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1(LSB)

Port0

RFU

write_ok

DE_SB

Port1

RFU

...

RFU

Command sequence

Preamble Start Delimiter Command ID

ADDRESS

CRC

Response sequence in case of matching UID

Return Preamble

BYTE_DATA

CRC

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