ST25DV64KC datasheet(99/203 Pages) STMICROELECTRONICS

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Table 137. Write Multiple Block response format when Error_flag is NOT set

Response SOF

Response_flags

CRC16

Response EOF

8 bits

16 bits

Response parameter:

•

No parameter. The response is sent back after the writing cycle.

Table 138. Write Multiple Block 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: command option is not supported

–

0Fh: error with no information given

–

10h: the specified block is not available

–

12h: the specified block is locked and its contents cannot be changed

–

13h: the specified block was not successfully programmed

Figure 49. Write Multiple Block frame exchange between VCD and ST25DVxxKC

SOF

Write Multiple

block request

VCD

EOF

ST25DVxxKC

SOF

Write Multiple

block response

EOF

SOF

Write Multiple

block response

EOF

ST25DVxxKC

Write sequence

when error

7.6.15

Extended Write Multiple Blocks

On receiving the Extended Write multiple block command, the writes the data contained in the request to the

targeted blocks and reports whether the write operation were successful in the response. ST25DVxxKC supports

up to 4 blocks, data field must be coherent with number of blocks to program.

If some blocks overlaps areas, or overlap end of user memory the ST25DVxxKC returns an error code and none

of the blocks are programmed.

The number of blocks in the request is one less than the number of blocks that the ST25DVxxKC shall write (for

instance Number of block = 2 means 3 blocks to be written).

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 ST25DVxxKC may not program correctly the data into the

memory. The Wt time is equal to t1nom + m × 302 μs < 20 ms (m is an integer function of Nb number of blocks to

be programmed).

The inventory_flag must be set to 0.

Block number is coded on 2 Bytes so all memory blocks of ST25DV16KC and ST25DV64KC can be addressed

using this command.

ST25DV04KC ST25DV16KC ST25DV64KC

RF commands

DS13519 - Rev 3

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