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ST25DV04K Scheda tecnica(PDF) 28 Page - STMicroelectronics

Il numero della parte ST25DV04K
Spiegazioni elettronici  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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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST25DV04K Scheda tecnica(HTML) 28 Page - STMicroelectronics

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RF_USER:
•
GPO output level is controlled by Manage GPO command (set or reset)
•
When RF_USER is activated, GPO level is changed after EOF of ST25DV response to a Manage GPO set
or reset command (see Section 7.6.30 Manage GPO).
•
RF_USER is prevalent over all other GPO events when set by Manage GPO command (other interrupts are
still visible in IT_STS_Dyn status register, but do not change GPO output level).
Figure 12. RF_USER chronogram
2) VCD sends a ManageGPO command with value 01h (reset GPO) and ST25DV replies.
GPO/RF_USER is set high-Z low after ST25DV response.
S
O
F
E
O
F
4) VCD sends a ManageGPO command (any value) and ST25DV stays quiet (command not for this
VICC, or quiet state). GPO/RF_USER remains high-Z.
ManageGPO
command
GPO/RF_USER (OD)
GPO/RF_USER (OD)
S
O
F
ManageGPO
01h
command
E
O
F
1) VCD sends a ManageGPO command with value 00h (set GPO) and ST25DV replies.
GPO/RF_USER is tied low after ST25DV response.
t1
GPO/RF_USER (OD)
S
O
F
E
O
F
ST25DV
reply
S
O
F
ManageGPO
00h
command
E
O
F
3) VCD sends a ManageGPO command (any value) and ST25DV replies with error.
GPO/RF_USER remains high-Z.
GPO/RF_USER (OD)
S
O
F
ManageGPO
command
E
O
F
t1
S
O
F
E
O
F
ST25DV
reply
t1
S
O
F
E
O
F
ST25DV
reply
5) VCD sends any command other than ManageGPO command and ST25DV replies.
GPO/RF_USER remains high-Z.
GPO/RF_USER (OD)
S
O
F
Any other
command
E
O
F
t1/Wt
S
O
F
E
O
F
ST25DV
reply
ST25DV04K ST25DV16K ST25DV64K
GPO
DS10925 - Rev 9
page 28/200



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