UM0853 datasheet(23/56 Pages) STMICROELECTRONICS

No. de pieza	UM0853

Descripción Electrónicos	M24LRxx application software user guide

PDF	56 Pages

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Fabricante Electrónico	STMICROELECTRONICS [STMicroelectronics]

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23 / 56 page

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.

UM0853 Datasheet(PDF) 23 Page - STMicroelectronics