Philips Semiconductors

Product Specification Rev. 3.1

February 2005

Functional Specification

Standard Label IC SL2 ICS20

8

3.2.1 UNIQUE IDENTIFIER

The 64 bit unique identifier (UID) is programmed during the production process according to ISO/IEC 15693-

3 and cannot be changed afterwards.

The numbering of the 64 bits is done according to ISO/IEC 15693-3 starting with the LSB 1 and ending with

the MSB 64. This is in contrast to the general used bit numbering within a byte.

The TAG type is a part of the UID (bit41 to 48, after the manufacturer code which is “04” hex for Philips

Semiconductors).

The TAG type of the SL2 ICS20 is “01” hex.

MSB

LSB

64

57

56

49

48

41

40

1

“E0”

“04”

“01”

IC manufacturer serial number

UID 7

UID 6

UID 5

UID 4

UID 3

UID 2

UID 1

UID 0

3.2.2 EAS FUNCTION

The LSB of Byte 1 in Block –2 holds the EAS bit (Electronic Article Surveillance mode active

à the label

responds to an EAS command)

Block –2, Byte 1

MSB

LSB

X

X

X

X

X

X

X

e

EAS

EAS:

e

= 1

à EAS enabled

e

= 0

à EAS disabled

Changing of the EAS Configuration must be done in secure environment. The label must not be

moved out of the communication field of the antenna during writing! We recommend to put the label

close to the antenna and not to remove it during operation.