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ST25DV04K Datasheet(PDF) 162 Page - STMicroelectronics

Part # ST25DV04K
Description  Dynamic NFC/RFID tag IC with 4-Kbit, 16-Kbit or 64-Kbit EEPROM, and fast transfer mode capability
PDF  200 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST25DV04K Datasheet(HTML) 162 Page - STMicroelectronics

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B.2.2
I2C byte writing in dynamic registers and polling
Table 266. Byte Write in Dynamic Register (if not Read Only)
Request/Response Frame
Comment
Master drives SDA
Slave drives SDA
Start A6h
-
Device select for writing
-
ACK
9th bit
ADDRESS_MSB
-
Send Address MSB (1 Byte)
-
ACK
9th bit
Dynamic Register ADDRESS_LSB
-
Send Address LSB (1 Byte)
Dynamic register are located from address
2000h to 2007h , some are only readable
-
ACK
9th bit
DATA
-
Send Data
-
ACK
9th bit
Stop
-
Immediate update of Dynamic register
Table 267. Polling during programming after byte write in Dynamic Register
Request/Response Frame
Comment
Master drives SDA
Slave drives SDA
Start A6h
-
Device select for writing
-
ACK
9th bit Device Busy
Dynamic register updates is immediate
Stop
-
End of Polling
Table 268. Byte Write in Dynamic Register if Read Only
Request/Response Frame
Comment
Master drives SDA
Slave drives SDA
Start A6h
-
Device select for writing
-
ACK
9th bit
20h
-
Send Address MSB (1 Byte)
-
NoACK
9th bit
RO Dynamic Register ADDRESS_LSB -
Send Address LSB (1 Byte)
Addresses 2001h, 2004h, 2005h and 2007h are Read Only
registers.
-
ACK
9th bit
DATA
-
Send Data
-
NoACK
9th bit
Stop
-
No Programming
Device return in Standby
ST25DV04K ST25DV16K ST25DV64K
I2C Byte writing and polling
DS10925 - Rev 9
page 162/200



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