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ST25DV04K Datenblatt(PDF) 20 Page - STMicroelectronics

Teilenummer ST25DV04K
Bauteilbeschribung  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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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST25DV04K Datenblatt(HTML) 20 Page - STMicroelectronics

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Fast transfer mode mailbox
ST25DVxxx fast transfer mode uses a dedicated mailbox buffer for transferring messages between RF and I2C
worlds. This mailbox contains up to 256 Bytes of data which are filled from the first byte.
Fast transfer mode mailbox is accessed in bytes from both RF and I2C.
In RF, mailbox is read via a dedicated (Fast) Read Message command. Read can start from any address value
inside the mailbox, between 00h and FFh. Writing in the mailbox is done via the (Fast) Write Message command
in one shot, always starting at mailbox address 00h. No password is needed to access mailbox from RF, but fast
transfer mode must be enabled.
In I2C, mailbox read can start from any address value between 2008h and 2107h. Write mailbox MUST start from
address 2008h to a max of 2107h. No password is needed to access mailbox from I2C, but fast transfer mode
must be enabled.
Table 13. Fast transfer mode mailbox memory map shows the map of fast transfer mode mailbox, as seen by RF
interface and by I2C interface.
Table 13. Fast transfer mode mailbox memory map
RF access
Fast transfer mode buffer
I2C access
Address
Type
Name
Function
Device
select
Address
Type
00h
R/W
MB_Dyn Byte 0
Fast transfer mode buffer (256-Bytes)
E2 = 0
2008h
R/W
01h
R/W
MB_Dyn Byte 1
E2 = 0
2009h
R/W
…
…
…
E2 = 0
...
...
FEh
R/W
MB_Dyn Byte 254
E2 = 0
2106h
R/W
FFh
R/W
MB_Dyn Byte 255
E2 = 0
2107h
R/W
ST25DV04K ST25DV16K ST25DV64K
Fast transfer mode mailbox
DS10925 - Rev 9
page 20/200



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