SRI2K datasheet(36/45 Pages) STMICROELECTRONICS

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SRI2K commands

SRI2K

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Doc ID 15779 Rev 3

Unique identifier (UID)

Members of the SRI2K family are uniquely identified by a 64-bit unique identifier (UID). This

is used for addressing each SRI2K device uniquely after the anticollision loop. The UID

complies with ISO/IEC 15963 and ISO/IEC 7816-6. It is a read-only code, and comprises

(as summarized in Figure 49):

●

an 8-bit prefix, with the most significant bits set to D0h

●

an 8-bit IC manufacturer code (ISO/IEC 7816-6/AM1) set to 02h (for

STMicroelectronics)

●

a 6-bit IC code set to 00 1111b = 15d for SRI2K

●

a 42-bit unique serial number

Figure 49.

64-bit unique identifier of the SRI2K

Figure 50.

Get_UID frame exchange between reader and SRI2K

8.10

Power-on state

After power-on, the SRI2K is in the following state:

●

It is in the low-power state.

●

It is in Ready state.

●

It shows highest impedance with respect to the reader antenna field.

●

It will not respond to any command except Initiate().

ai15579

D0h

Unique Serial Number

02h

Most significant bits

Least significant bits

15d

CRCL CRCH

ai15589

Reader

SRI2K

<-t0-><-t1->

CRCL CRCH

0Bh

UID

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