ST25TV02K datasheet(42/90 Pages) STMICROELECTRONICS

42 / 90 page

Table 64. Reset to ready response format when Error_flag is set

Response SOF

Response_flags

Error code

CRC16

Response EOF

8 bits

16 bits

Response parameter:

•

Error code as Error_flag is set:

–

03h: the option is not supported

Figure 16. Reset to Ready frame exchange between VCD and ST25TV02K/512

SOF

Reset to Ready

request

VCD

ST25TV02K/512

EOF

SOF

Reset to Ready

response

EOF

6.4.12

Write AFI

On receiving the Write AFI request, the ST25TV02K/512 program the 8-bit AFI value to its memory. When the

Option_flag is set, wait for EOF to respond.

During the RF write cycle Wt, there should be no modulation (neither 100% nor 10%), otherwise the

ST25TV02K/512 may not write correctly the AFI value into the memory. The Wt time is equal to t1nom + N ×

302 µs (N is an integer).

Table 65. Write AFI request format

Request SOF

Request_flags

Write AFI

UID (1)

AFI

CRC16

Request EOF

8 bits

27h

64 bits

8 bits

16 bits

1. The field is optional.

Request parameter:

•

Request flags

•

UID (optional)

•

AFI

Table 66. Write AFI response format when Error_flag is NOT set

Response SOF

Response_flags

CRC16

Response EOF

8 bits

16 bits

Response parameter:

•

No parameter

ST25TV02K ST25TV512

RF commands

DS12074 - Rev 11

page 42/90

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