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ST25DV64K 数据表(PDF) 34 Page - STMicroelectronics

部件名 ST25DV64K
功能描述  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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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST25DV64K 数据表(HTML) 34 Page - STMicroelectronics

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RF_WRITE:
•
When RF_WRITE is activated, a pulse of duration IT_TIME is emitted at completion of a valid RF write
operation in EEPROM (after EOF of ST25DV response).
•
Following commands trigger the RF_WRITE interrupt after a valid write operation in EEPROM:
–
Write Single Block
–
Extended Write Single Block
–
Write Multiple Block
–
Extended Write Multiple Block
–
Lock Block
–
Extended Lock Block
–
Write AFI
–
Lock AFI
–
Write DSFID
–
Lock DSFID
–
Write Configuration
–
Write Password
•
Note that writing in dynamic registers or fast transfer mode mailbox does not trigger RF_WRITE interrupt (no
write operation in EEPROM).
Figure 18. RF_WRITE chronogram
1) VCD sends a write command and ST25DV replies after write completed. GPO/RF_WRITE
generates a pulse during IT_TIME after ST25DV response.
S
O
F
E
O
F
5) VCD sends any command and ST25DV stays quiet (command not for this VICC, or quiet state).
RF_ACTIVITY remains high-Z.
(m*)Wt
VCD
Command
GPO/RF_WRITE (OD)
GPO/RF_WRITE (OD)
S
O
F
E
O
F
ST25DV
reply
S
O
F
Write
command
E
O
F
3) VCD sends a write command and ST25DV replies with error. GPO/RF_WRITE remains high-Z.
t1
GPO/RF_WRITE (OD)
S
O
F
E
O
F
ST25DV
reply
S
O
F
Write
command
E
O
F
2) VCD sends a write command with option flag set to 1, and ST25DV replies after receiving EOF.
GPO/RF_WRITE generates a pulse during IT_TIME after ST25DV response.
>(m*)Wt
GPO/RF_WRITE (OD)
S
O
F
E
O
F
ST25DV
reply
S
O
F
Write
command
E
O
F
E
O
F
t1
4) VCD sends any other command than a write command. GPO/RF_WRITE remains high-Z.
t1
GPO/RF_WRITE (OD)
S
O
F
E
O
F
ST25DV
reply
S
O
F
Any other
command
E
O
F
ST25DV04K ST25DV16K ST25DV64K
GPO
DS10925 - Rev 9
page 34/200



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