SL2ICS50 datasheet(21/28 Pages) NXP

21 / 28 page

136430

Product data sheet

Rev. 3.0 — 14 March 2007

21 of 28

NXP Semiconductors

SL2 ICS50/SL2 ICS51

I•CODE SLI-L/I•CODE SLI-L HC

PUBLIC

8.1.3.14 Write EAS ID

Command Code = A7h

With the command Write EAS ID a new EAS Identifier is stored in the corresponding

configuration memory. If EAS is password protected (for Set and Reset EAS) the EAS

password has to be transmitted before with the Set Password command.

Table 47.

Request format

SOF

Flags

Write

EAS

IC Mfg code

UID

EAS ID

value

CRC16

EOF

8 bits

64 bits

optional

16 bits

8 bits

Table 48.

Response format when Error_flag is set

SOF

Flags

Error code

CRC16

EOF

8 bits

16 bits

Table 49.

Response format when Error_flag is NOT set

SOF

Flags

CRC16

EOF

8 bits

16 bits

8.2 Long range command

8.2.1 Long Range CMD

Command Code = 40h

The Long Range CMD command is designed to allow the use of the higher limits defined

in the ISO/TR 7003:1990. The bit and byte coding is the same as it is defined in EPC

Specification “13.56 MHz ISM Band Class 1 Radio Frequency (RF) Identification Tag

Interface Specification”.

To reduce the number of pulses the redundancy check is changed from an CRC8

calculation to a XOR of the transmitted parameters (Long Range CMD, Data Selector,

Number of Slots)

• Number of Slots:

– If the Data Selector is transmitted for EAS the label will ignore the received

Number of Slots parameter and will use always one Slot (like EAS Alarm

command, see Section 8.1.3.12 “EAS Alarm”). with EAS. For EAS typically 00h is

used as the value for Number of Slots to reduce the number of transmitted pulses.

– If the Data Selector is transmitted for UID or EPC the label will respond within one

of the transmitted Number of Slots on a pseudo random basis and will calculate a

new slot for a following command.

Labels, which have executed a Destroy EPC command before will not respond to this

command, if the Data Selector for EPC is transmitted.

Table 50.

Request format

SSOF

Long Range

CMD

Data

Selector

Number of Slots

XOR

CEOF

8 bits

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