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ST25DV04K bảng dữ liệu(PDF) 40 Page - STMicroelectronics

tên linh kiện ST25DV04K
Giải thích chi tiết về linh kiện  Dynamic NFC/RFID tag IC with 4-Kbit, 16-Kbit or 64-Kbit EEPROM,and fast transfer mode capability
PDF  220 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST25DV04K bảng dữ liệu(HTML) 40 Page - STMicroelectronics

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DocID027603 Rev 4
I2C host is then informed (by interruption on GPO output or polling on MB_CTRL_Dyn
register) that a message from RF is present in the mailbox.
Once the complete message has been read by I2C, mailbox is considered free again and is
available for receiving a new message (data is not cleared).
The RF user is informed that the message has been read by the I2C host by polling on
MB_CTRL_Dyn register.
Figure 9. RF to I2C fast transfer mode operation
To send data from the I2C host to the RF reader, fast transfer mode must be enabled, the
mailbox must be free and the I2C host must first write the message containing data in the
mailbox.
The RF user must poll on MB_CTRL_Dyn register to check for the presence of a message
from I2C in the mailbox.
Once the complete message has been read by RF user, mailbox is considered free again
and is available for receiving a new message (data is not cleared).
The I2C host is informed that message has been read by RF user through a GPO
interruption or by polling on the MB_CTRL_Dyn register.



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