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UM0853 Fiches technique(PDF) 23 Page - STMicroelectronics

No de pièce UM0853
Description  M24LRxx application software user guide
PDF  56 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UM0853 Fiches technique(HTML) 23 Page - STMicroelectronics

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UM0853
How to control the RF and I²C channels from your screen
Doc ID 16609 Rev 3
23/56
If no tag was selected after the Inventory request, the device sends “00 00 00 00 00 00 00
00” instead of the UID value.
STAY QUIET
The STAY QUIET button is used to send a Stay Quiet RF request (refer to the M24LRxx
datasheet for details).
RESET TO READY
The RESET TO READY button is used to send a Reset to Ready RF request (refer to the
M24LRxx datasheet for details).
3.2.7
Read command
Figure 37.
Initiating a read operation
By pressing the Read button, you launch RF requests to read the contents of the M24LRxx
EEPROM from the block address specified in the from field to the block address specified in
the to field.
The result of the read operation is displayed in the MEMORY seen by RF area (see
Figure 38 to Figure 41).
From 0000 to 07FF reads all M24LRxx EEPROM contents. Figure 38 and Figure 39 only
show the results for sector 0 and sector 3F, respectively.



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