ST25DV64K datasheet(127/220 Pages) STMICROELECTRONICS

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ST25DV04K ST25DV16K ST25DV64K

RF operations

219

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

7.6.16

Select

When receiving the Select command:

•

If the UID is equal to its own UID, the ST25DVxxx enters or stays in the Selected state

and sends a response.

•

If the UID does not match its own UID, the selected ST25DVxxx returns to the Ready

state and does not send a response.

The ST25DVxxx answers an error code only if the UID is equal to its own UID. If not, no

response is generated. If an error occurs, the ST25DVxxx remains in its current state.

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

Table 101. Extended Write Multiple Block response format when Error_flag is set

Response

SOF

Response_flags

Error code

CRC16

Response

EOF

8 bits

16 bits

Figure 44. Extended Write Multiple Block frame exchange between VCD and ST25DVxxx

VCD

SOF

Extended Write

Multiple Block

request

EOF

ST25DVxxx

<-t1-> SOF

Extended Write

Multiple Block

response

EOF

Write sequence when

error

ST25DVxxx

<------------------- Wt ---------------> SOF

Extended Write

Multiple Block

response

EOF

Table 102. Select request format

Request

SOF

Request_flags

Select

UID

CRC16

Request

EOF

8 bits

25h

64 bits

16 bits

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