SL3S1205FUD2SLASHHAP datasheet(24/38 Pages) NXP

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NXP Semiconductors

SL3S1205_15

UCODE 8/8m

9.6.5 EPC+TID

9.6.5.1 Description

This feature enables the read out the EPC+TID memory content in a faster way

compared to a standard readout sequence.

A SELECT on the config word bit 203h (EPC+TID) will trigger the UCODE 8/8m to reply

with the EPC+TID after receiving the ACK command during the inventory round.

In case only the TID should be replied by this feature, the EPC length in the PC needs to

be set to "0".

9.6.6 Product Status Flag (PSF)

9.6.6.1 Description

The PSF bit can be used for easy EAS (Electronic Article Surveillance) implementations

or as general-purpose check flag.

In order to detect tags with activated PSF, a SELECT command on bit 20Fh (PSF Bit)

in the configuration word is required. In the following inventory round, only PSF enabled

chips reply their EPC number.

9.6.7 Backscatter strength reduction

The UCODE 8/8m features two levels of backscatter strengths. Per default, maximum

backscatter is enabled in order to enable maximum read rates. A deactivation of this

feature can be done by clearing bit 209h (max. backscatter strength) in the configuration

word, which reduces the backscatter strength if needed.

9.6.8 Pre-serialization of the 96-bit EPC

9.6.8.1 Description

UCODE 8/8m are delivered with a pre-serialized content of the 96-bit EPC, which is the

initial EPC length settings of UCODE 8/8m.

The EPC content is identical to the TID content except of the 16-bit XTID content which is

set to 16-bit 0's.

aaa-027142

Bits

0 11

Class Identifier

Mask-Designer Identifier

Model Number

XTID

Serial Number

TID

Bits

0 11

Class Identifier

Mask-Designer Identifier

Model Number

0000 0000 0000 0000

Serial Number

serialized EPC

Figure 7. Pre-serialization of 96-bit EPC

SL3S1205_15

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 3.5 — 1 April 2021

COMPANY PUBLIC

398435

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