User's Manual

User Manual

MIFARE SAM AV3 Evaluation Board

User manual COMPANY PUBLIC

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Rev. 1.0 19-JAN-2022

Arduino® R3 header

The MIFARE SAM AV3 evaluation board is equipped with a Arduino

R3 compatible header. The

evaluation board can be fully powered with the 5 V line from this header. 3V3 is directly generated on

board out of this 5 V line. The header also uses the SPI interface, which can be connected to the

CLRC663 host interface for direct communication. For SAM communication, the user can choose

between 2 I²C interfaces: The default one on IOH1 (called I²C1), as well as an alternative pinning on

AD1 (called I²C2). IO4 and IO5 are used for the CLRC663 PDOWN and IRQ, and IO6 can be

jumpered to provide the MIFARE SAM AV3 VDD.

4 Schematics

Power management

The MIFARE SAM AV3 evaluation board is equipped with a mini-USB connector to power the

system. The port is used only to provide for power only. The entire board can be powered by either

the USB port or the 5 V line on the Arduino header. The power LED signalizes 3.3V power

availability.

Figure 5: Arduino header pin assignment

Figure 6: Power Management