FAQ: Power On indicator for ST25DV

Document created by Online Support Moderator on Feb 5, 2017
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Q:

Is there a way how a RF reader can recognize that the ST25DV has Vcc on and RAM buffer can be used? Any RF command, or register settings to read?
A:
Yes, there is a it in a register to indicates VCC on. RF can read register EH_CTRL_Dyn, bit 3 VCC_ON. Register is always readable.
Details about this register and how to access in below table:
ST25DV VCC_ON
Important Note: Official ST25DV Datasheet might have been released and published on st.com in the meantime. Please check availability and use SEARCH function on www.st.com or proceed to ST25 product pages: ST25DV series Dynamic NFC Tags 
(extracted from ST Online Support)

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