ST25TV512 datasheet(35/90 Pages) STMICROELECTRONICS

35 / 90 page

Figure 10. Stay Quiet frame exchange between VCD and ST25TV02K/512

SOF

Stay Quiet

request

VCD

ST25TV02K/512

EOF

6.4.6

Read Single Block

On receiving the Read Single Block command, the ST25TV02K/512 read the requested block and sends back its

32-bit value in the response. The Option_flag is supported, when set response include the Block Security Status.

Block number is coded on 1 Byte.

Table 44. Read Single Block request format

Request SOF

Request_flags

Read Single Block

UID (1)

Block number

CRC16

Request EOF

8 bits

20h

64 bits

8 bits

16 bits

1. The field is optional.

Request parameters:

•

Request flags

•

UID (optional)

•

Block number

Table 45. Read Single Block response format when Error_flag is NOT set

Response SOF

Response_flags

Block security status (1)

Data

CRC16

Response EOF

8 bits

32 bits

16 bits

1. The field is optional.

Response parameters:

•

Block security status if Option_flag is set (see Table 46. Block security status)

•

Four bytes of block data

Table 46. Block security status

Reserved for future use.

All at 0.

0: Current block not locked

1: Current block locked

Table 47. Read Single Block response format when Error_flag is set

Response SOF

Response_flags

Error code

CRC16

Response EOF

8 bits

16 bits

Response parameter:

ST25TV02K ST25TV512

RF commands

DS12074 - Rev 11

page 35/90

ST25TV512 Datasheet(PDF) 35 Page - STMicroelectronics

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