XRA00 Datasheet, PDF (21/40 Pages) STMicroelectronics – UHF, EPCglobal, Contactless Memory IC 96 bit ePC with Inventory and Kill Function

XRA00
GENERAL COMMAND FORMAT
The XRA00 is expected to have limited oscillator
(PLL) stability. In the Request Frame format, the
Reader provides a serie of pulses to synchronize
the XRA00’s internal oscillator at the beginning of
each transaction. Answer Frames from the XRA00
are structured such that the Reader can interpret
the information transmitted at whatever clock rate
the XRA00 is able to provide. This scheme is sim-
ilar in concept to auto-synchronization schemes
used in magnetic card or barcode Readers.
Two classes of Request Frames are provided:
■ Basic Commands: they provide XRA00
identification, sorting, inventory, etc. when
XRA00s are placed on goods in the supply
chain.
■ Programing Commands: they support XRA00
data initialization and programming by the final
tag user prior to the entry of the tagged items
in the supply chain.
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