SRTAG2KL datasheet(39/51 Pages) STMICROELECTRONICS

Part #	SRTAG2KL

Description	NFC Forum Type 4 Tag IC with 2-Kbit EEPROM

PDF	51 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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39 / 51 page

DocID026583 Rev 2

39/51

SRTAG2KL

RF command sets

5.9.2

RATS command and ATS response

RATS command and ATS response are used for NFC Forum Type 4A Tag Platform Device

Activation (as defined in NFC Forum Digital Protocol specification).

Table 48 details the RATS command. This command shall be sent after the anticollision

process.

SEL_REQ 1

93 70 CT

uid1 uid2

uid3 BBC

NVB 70

(cmd NVB Uid lower bytes)

CT Cascade Tag “0x88”

SAK & CRC

04 DAD7

UID Not complete

SDD_REQ 2

95 20

NVB 20

Number Valid bit

(2 bytes Code & NVB)

uid4 uid5

uid6 uid7

BCC

(UID 7bytes)

BCC Block Check

Character

(XOR previous Bytes)

SEL_REQ 1

95 70

uid4 uid5

uid6 uid7

BBC

NVB 70

(cmd NVB Uid Upper

bytes)

SAK & CRC

20 FC70

UID complete

Table 47. Example of anticollision sequence (continued)

Command

Code

Comment

Response

Code

Comment

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