SRI512_08 datasheet(38/47 Pages) STMICROELECTRONICS

No de pièce	SRI512

Description	13.56 MHz short-range contactless memory chip with 512-bit EEPROM and anticollision functions

PDF	47 Pages

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Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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SRI512 commands

SRI512

38/47

Unique Identifier (UID)

Members of the SRI512 family are uniquely identified by a 64-bit Unique Identifier (UID).

This is used for addressing each SRI512 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 0110b = 6d for SRI512

●

a 42-bit unique serial number

Figure 49.

64-bit unique identifier of the SRI512

Figure 50.

Get_UID frame exchange between reader and SRI512

8.10

Power-on state

After power-on, the SRI512 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().

AI12375

D0h

Unique Serial Number

02h

Most significant bits

Least significant bits

CRCL CRCH

AI10950

Reader

SRI512

<-t0-> <-t1->

CRCL CRCH

0Bh

UID

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