M24SR16-Y Datasheet, PDF (62/89 Pages) STMicroelectronics – Support of NDEF data structure

I2C device operation
M24SR16-Y
7.10
Open an I²C session
To open an I²C session, the I²C host shall send either the GetSession command or the
KillRFsession command. The GetSession Command opens an I²C session if an RF session
in not currently opened.
A KillRFsession command closes the current RF session if it exist and opens an I²C
session.
When an I²C session is opened, the RF host cannot communicate with the M24SR16-Y and
cannot close the I²C session.
7.11
Close the I²C session
There are three ways to close an I²C session:
• turn off the Vcc power supply
• send the I2C token release sequence
• wait for the I²C watchdog when it is enabled
• wait for the I²C timeout on clock period
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