ST25DV64K datasheet(115/220 Pages) STMICROELECTRONICS

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ST25DV04K ST25DV16K ST25DV64K

RF operations

219

Response parameters:

•

Block security status if Option_flag is set (see Table 70: Block security status)

•

Four bytes of block data

Response parameter:

•

Error code as Error_flag is set

–

03h: command option not supported or no response

–

0Fh: error with no information

–

10h: the specified block is not available

–

15h: the specified block is read-protected

7.6.8

Write Single Block

On receiving the Write Single Block command, the ST25DVxxx writes the data contained in

the request to the targeted block and reports whether the write operation was successful in

the response. When the Option_flag is set, wait for EOF to respond. The Inventory_flag

must be set to 0.

Table 73. Extended Read Single 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

32 bits

16 bits

Table 74. Block security status

Reserved for future use.

All at 0.

0: Current block not locked

1: Current block locked

Table 75. Extended Read Single Block response format when Error_flag is set

Response

SOF

Response_flags

Error code

CRC16

Response

EOF

8 bits

16 bits

Figure 36. Extended Read Single Block frame exchange between VCD and

ST25DVxxx

VCD

SOF

Extended Read

Single Block request

EOF

ST25DVxxx

<-t1-> SOF

Extended Read

Single Block

response

EOF

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