ST25DV64K datasheet(123/220 Pages) STMICROELECTRONICS

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ST25DV04K ST25DV16K ST25DV64K

RF operations

219

of user memory, the ST25DVxxx returns an error code. When the Option_flag is set, the

response returns the Block Security Status.

The Inventory_flag must be set to 0.

Block number is coded on 2 Bytes so all memory blocks of ST25DV16K-xx and

ST25DV64K-xx can be addressed using this command.

Request parameters:

•

Request flags

•

UID (optional)

•

First block number

•

Number of blocks

Response parameters:

•

Block security status if Option_flag is set (see Table 94: Block security status)

•

N blocks of data

Table 92. Extended Read Multiple Block request format

Request

SOF

Request_

flags

Extended

Read Multiple

Block

UID(1)

1. Gray color means that the field is optional.

First block

number

Number

of blocks

CRC16

Request

EOF

-8 bits

33h

64 bits

16 bits

Table 93. Extended Read Multiple Block response format when Error_flag is NOT set

Response

SOF

Response_

flags

Block security

status(1)

1. Gray color means that the field is optional.

Data

CRC16

Response

EOF

-8 bits

8 bits(2)

2. Repeated as needed.

32 bits(2)

16 bits

Table 94. Block security status

Reserved for future use.

All at 0

0: Current block not locked

1: Current block locked

Table 95. Extended Read Multiple Block response format when Error_flag is set

Response SOF

Response_flags

Error code

CRC16

Response EOF

8 bits

16 bits

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