ST25DV64K datasheet(116/220 Pages) STMICROELECTRONICS

116 / 220 page

RF operations

ST25DV04K ST25DV16K ST25DV64K

116/220

DocID027603 Rev 4

During the RF write cycle Wt, there should be no modulation (neither 100% nor 10%),

otherwise the ST25DVxxx may not program correctly the data into the memory. The Wt time

is equal to t1nom + N × 302 µs (N is an integer).

Block number is coded on 1 Byte and only first 256 blocks of ST25DV16K-xx and

ST25DV64K-xx can be addressed using this command.

Request parameters:

•

Request flags

•

UID (optional)

•

Block number

•

Data

Response parameter:

•

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

Response parameter:

•

Error code as Error_flag is set(a):

–

03h: command option not supported

–

0Fh: error with no information given

–

10h: the specified block is not available

–

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

–

13h: the specified block was not successfully programmed

Table 76. Write Single Block request format

Request

SOF

Request_flags

Write Single

Block

UID(1)

1. Gray color means that the field is optional.

Block

number

Data

CRC16

Request

EOF

8 bits

21h

64 bits

8 bits

32 bits

16 bits

Table 77. Write Single Block response format when Error_flag is NOT set

Response SOF

Response_flags

CRC16

Response EOF

8 bits

16 bits

Table 78. Write Single Block response format when Error_flag is set

Response

SOF

Response_flags

Error code

CRC16

Response

EOF

8 bits

16 bits

a. For more details, see Figure 7: Memory organization

ST25DV64K Scheda tecnica(PDF) 116 Page - STMicroelectronics

ST25DV64K Scheda tecnica(HTML) 116 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Scheda tecnica Scarica

Link URL