ST25TV02K datasheet(60/90 Pages) STMICROELECTRONICS

60 / 90 page

•

Request flags

•

UID (optional)

•

EAS ID

Table 116. Write EAS response format when Error_flag is NOT set

Response SOF

Response_flags

CRC16 request

EOF

8 bits

16 bits

Response parameter:

•

No parameter

Table 117. Write EAS response format when Error_flag is set

Response SOF

Response_flags

Error code

CRC16 request

EOF

8 bits

16 bits

Response parameter:

•

Error code as Error_flag is set

–

03h: command option is not supported

–

12h: the EAS configuration cannot be changed as either the security session is closed, or locked

–

13h: the EAS configuration could not be programmed successfully

6.4.29

Write EAS CONFIG

This command writes the telegram length in the EAS configuration register in the 2 following bits. It is protected by

the configuration password if EAS_SEC = ‘1’

If EAS is locked, the command is not authorized and the ST25TV02K/512 will return an error.

Table 118. EAS configuration bits

bit 1

bit 0

EAS telegram length

Location

256 bits payload

EAS block 1 to 8

128 bits payload

EAS block 1 to 4

64 bits payload

EAS block 1to 2

32 bits payload

EAS block 1

Note:

The bits from 7 to 2 are set to 0.

Table 119. Write EAS CONFIG request format

Request SOF Request_flags Write EAS CONFIG IC Mfg code UID (1) EAS configuration CRC16 request EOF

8 bits

A8h

02h

64 bits 8 bits

16 bits

1. The field is optional.

Request parameters:

•

Request flags

•

UID (optional)

•

EAS CONFIG

ST25TV02K ST25TV512

RF commands

DS12074 - Rev 11

page 60/90

ST25TV02K Datasheet(PDF) 60 Page - STMicroelectronics

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