SRTAG2K-D View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

SRTAG2K-D

NFC Forum Type 4 Tag IC with 2-Kbit EEPROM and RF Session digital output

STMicroelectronics 

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SRTAG2K-D

RF command sets

5.2.2

R-APDU: payload format of a response

the SRTAG2K-D uses the I-Block format to reply to a command which used the I-Block

format. This format is described in Table 13.

Name

Length

Data

Status byte 1

Status byte 2

Table 13. R-APDU format

Payload field

Data (optional)

SW1

Le byte

1 byte

SW2

1 byte

5.3

R-Block format

The R-Block is used to convey positive or negative acknowledgment between the RF host

and the SRTAG2K-D.

Table 14. R-Block format

PCB

R(ACK) without the DID field: 0xA2 or 0xA3

R(ACK) with the DID field: 0xAA or 0xAB

R(NAK) without the DID field: 0xB2 0xB3

R(NAK) with the DID field: 0xBA 0xBB

CRC

2 CRC bytes

There are two kinds of R-Blocks:

• R(ACK): the acknowledgement block sent by the RF host or by the SRTAG2K-D

• R(NAK): the non-acknowledgement block sent by the RF host or by the SRTAG2K-D

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