DEVKIT-M24LR-A STMicroelectronics, DEVKIT-M24LR-A Datasheet - Page 20

• Manufacturer Part Number: DEVKIT-M24LR-A
• Description: DEVELOPMENT KIT M24-LR64-R
• Manufacturer: STMicroelectronics
• Type: Development kitr

Specifications of DEVKIT-M24LR-A

• Featured Product: STM32 Cortex-M3 Companion Products
• Contents: 3 Antennas (1 External, 2 Reference for Tags), Cable, 2 Readers (EEPROM and RFID), Samples
• Product: RF Modules
• Maximum Frequency: 13.56 MHz
• Antenna: On-Board
• For Use With/related Products: M24LR-64-R
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-10481

How to control the RF and I²C channels from your screen
3.2.5
3.2.6
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Select mode
Selecting the Select mode sets bit 5 and clears bit 6 in the Request_flags of the RF request
(bit 5 = 1 and bit 6 = 0).
The request is executed only by the M24LR64-R device in the Select State (please refer to
the M24LR64-R datasheet for details).
To select a tag, refer to the
(Select paragraph).
Figure 32. Selecting the Select mode
Managing the M24LR64-R states
The M24LR64-R can be in different states: Power-off, Ready, Quiet and Selected (refer to
the M24LR64-R datasheet for details).
The interface shown in
M24LR64-R in one out of three specific states: Selected, Quiet and Ready.
Figure 33. Device state management interface
SELECT
The SELECT button is used to send a Select RF request with the UID of a specific tag
(Section 3.2.1: Inventory
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 M24LR64-R
datasheet for details).
RESET TO READY
The RESET TO READY button is used to send a Reset to Ready RF request (refer to the
M24LR64-R datasheet for details).
Read command
Figure 34. Initiating a read operation
Figure 33
command) (refer to the M24LR64-R datasheet for details).
SELECT
Doc ID 16609 Rev 1
is used to send three types of RF request to place the
paragraph below, and to the M24LR64-R datasheet
UM0853