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ST25DV04K Datasheet(PDF) 77 Page - STMicroelectronics

Part # ST25DV04K
Description  Dynamic NFC/RFID tag IC with 4-, 16-, or 64-Kbit EEPROM, and fast transfer mode capability
PDF  197 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST25DV04K Datasheet(HTML) 77 Page - STMicroelectronics

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7.4.6
Response format
The response consists of:
•
an SOF
•
flags
•
parameters and data
•
a CRC
•
an EOF
Table 97. General response format
SOF
Response_flags
Parameters
Data
2 byte CRC
EOF
7.4.7
Response flags
In a response, the flags indicate how actions have been performed by the ST25DVxxx and whether
corresponding fields are present or not. The response flags consist of eight bits.
Table 98. Definitions of response flags 1 to 8
Bit Nb
Flag
Level
Description
Bit 1
Error_flag
0
No error
1
Error detected. Error code is in the “Error” field.
Bit 2
RFU
0
-
Bit 3
RFU
0
-
Bit 4
Extension flag
0
No extension
Bit 5
RFU
0
-
Bit 6
RFU
0
-
Bit 7
RFU
0
-
Bit 8
RFU
0
-
ST25DV04K ST25DV16K ST25DV64K
RF protocol description
DS10925 - Rev 11
page 77/197



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