User's Manual

User Manual
MIFARE SAM AV3 Evaluation Board
User manual COMPANY PUBLIC
Information provided in this document is subject to legal disclaimers
© GMMC GmbH. 2020. All rights reserved.
Rev. 1.0 19-JAN-2022
6
CLRC663
The MIFARE SAM AV3 evaluation board also has a CLRC663 contactless frontend incorporated
on the PCB. The digital communication interface (SPI, and I²C ) from MCU to the CLRC663 can
be selected via jumpers. The SPI-Interface is directly connected to the Arduino
®
header, the I²C
interfaces are meant to be used by the MIFARE SAM AV3 for its X-mode. Jumper setting details
can be found in the section jumper settings in this document
Figure 7: CLRC663 communication interface selection
Figure 8: Antenna matching circuit