ST25DV04KC datasheet(113/203 Pages) STMICROELECTRONICS

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Table 174. Response other field: ST25DVxxKC VICC command list Byte 4

Bit

Meaning if bit is set

Comment

Read Buffer is supported

It means Response Buffer is supported.

Select Secure State is supported

It means VCD or Mutual authentication are supported.

Final Response always includes crypto result

It means that flag b3 is set in the Final response.

AuthComm crypto format is supported

SecureComm crypto format is supported

KeyUpdate is supported

Challenge is supported

If set to 1 a further byte is transmitted

0 must be returned.

Table 175. Extended Get System Info response format when Error_flag is set

Response SOF

Response_flags

Error code

CRC16

Response EOF

01h

8 bits

16 bits

Response parameter:

•

Error code as Error_flag is set:

–

03h: Option not supported

–

0Fh: error with no information given

Figure 58. Extended Get System Info frame exchange between VCD and ST25DVxxKC

SOF

Extended Get

System Info

request

VCD

ST25DVxxKC

EOF

SOF

Extended Get

System Info

response

EOF

7.6.24

Get Multiple Block Security Status

When receiving the Get Multiple Block Security Status command, the sends back its security status for each

address block: 0 when block is writable else 1 when block is locked for writing. The blocks security status are

defined by the area security status (and by LCK_CCFILE register for blocks 0 and 1). The blocks are numbered

from 00h up to the maximum memory block number in the request, and the value is minus one (–1) in the field.

For example, a value of “06”, in the “Number of blocks” field requests, returns the security status of seven blocks.

This command does not respond an error if number of blocks overlap areas or overlap the end of the user

memory.

The number of blocks is coded on 1 Byte and only first 256 blocks of ST25DV16KC and ST25DV64KC can be

addressed using this command.

The Option_flag is not supported. The Inventory_flag must be set to 0.

ST25DV04KC ST25DV16KC ST25DV64KC

RF commands

DS13519 - Rev 3

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