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ST25DV04KC bảng dữ liệu(PDF) 103 Page - STMicroelectronics

tên linh kiện ST25DV04KC
Giải thích chi tiết về linh kiện  Dynamic NFC/RFID tag IC with 4-Kbit, 16-Kbit or 64-Kbit EEPROM, fast transfer mode capability and optimized I2C
PDF  203 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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ST25DV04KC bảng dữ liệu(HTML) 103 Page - STMicroelectronics

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Figure 52. Reset to Ready frame exchange between VCD and ST25DVxxKC
SOF
Reset to Ready
request
VCD
ST25DVxxKC
EOF
SOF
Reset to Ready
response
EOF
t1
7.6.18
Write AFI
On receiving the Write AFI request, the ST25DVxxKC programs the 8-bit AFI value to its memory. When the
Option_flag is set, wait for EOF to respond.
The Inventory_flag must be set to 0.
During the RF write cycle Wt, there should be no modulation (neither 100% nor 10%), otherwise the
ST25DVxxKC may not write correctly the AFI value into the memory. The Wt time is equal to t1nom + N ×
302 µs (N is an integer).
Table 148. Write AFI request format
Request SOF
Request_flags
Write AFI
UID (1)
AFI
CRC16
Request EOF
-
8 bits
27h
64 bits
8 bits
16 bits
-
1. This field is optional.
Request parameter:
•
Request flags
•
UID (optional)
•
AFI
Table 149. Write AFI response format when Error_flag is NOT set
Response SOF
Response_flags
CRC16
Response EOF
-
8 bits
16 bits
-
Response parameter:
•
No parameter
Table 150. Write AFI response format when Error_flag is set
Response SOF
Response_
flags
Error code
CRC16
Response EOF
-
8 bits
8 bits
16 bits
-
ST25DV04KC ST25DV16KC ST25DV64KC
RF commands
DS13519 - Rev 3
page 103/203



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