User Manual MIFARE SAM AV3 Evaluation Board Document information Information Content Keywords MIFARE SAM AV3, evaluation board, Direct Mode (X-mode), Satellite Mode (S-mode), I²C, SPI, ISO/IEC 7816, CLRC663 family, MCU, Arduino This manual shows how to operate the MIFARE SAM AV3 Evaluation board Abstract Revision history Rev Date Description 1.0 Initial version 2022- 01-19 User manual COMPANY PUBLIC Information provided in this document is subject to legal disclaimers © GMMC GmbH. 2020.
User Manual MIFARE SAM AV3 Evaluation Board 1 Introduction The MIFARE SAM AV3 Arduino shield shaped evaluation board is designed to help evaluate the features and of the MIFARE SAM AV3 IC in combination with any MCU and to quickly and easy development secure contactless tag applications. The evaluation board therefore incorporates a 13.56 MHz NFC frontend IC of the CLRC663 plus family and an embedded inductive loop antenna..
User Manual MIFARE SAM AV3 Evaluation Board 2 Compliance Statements FCC Compliance Statement This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. CAUTION: The grantee is not responsible for any changes or modifications not expressly approved by the party responsible for compliance.
User Manual MIFARE SAM AV3 Evaluation Board 3 Block Diagram Figure 2: MIFARE SAM AV3 evaluation board Block Diagram Figure 3: Building Blocks and connectors Figure 4: typical development setup User manual COMPANY PUBLIC Information provided in this document is subject to legal disclaimers © GMMC GmbH. 2020. All rights reserved. Rev. 1.
User Manual MIFARE SAM AV3 Evaluation Board 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 fordirect communication.
User Manual MIFARE SAM AV3 Evaluation Board CLRC663 Figure 7: CLRC663 communication interface selection Figure 8: Antenna matching circuit 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.
User Manual MIFARE SAM AV3 Evaluation Board Figure 9: I²C Interface selection with protection 5 MIFARE SAM AV3 – Add-on Board Add-on board The MIFARE SAM AV3 itself is placed on an add-on board, to be able to easily exchange the MIFARE SAM AV3 in case it has been misconfigured. The pullups for theMCU_I²C_xxx interface, as well as the voltage level divider are placed on the add-on board.
User Manual MIFARE SAM AV3 Evaluation Board 6 MIFARE SAM Evaluation Board - Jumper Setting Figure 12: MIFARE SAM AV3 Jumper options The MIFARE SAM AV3 evaluation board comes with 3 different colors of Jumpers: • GREEN: Configuration of RC663 interfaces • YELLOW: MCU board I²C interface selection • RED: MIFARE SAM AV3 configuration CLRC663 Interface Mode The CLRC663 NFC reader frontend IC offers a Host and a SAM interface.
User Manual MIFARE SAM AV3 Evaluation Board Figure 14: Jumper settings SPI or I²C Host interface mode SPI For SPI communication between MCU and CLRC663 the 4 jumpers on the 10 pin header need to be positioned as shown. This setting is intended to use the MIFARE SAM AV3 in S-mode, or in an S/X mixed mode. At this point, the MCU can already control the CLRC663 via SPI. 6.1.1 I²C In case I²C is selected, the CLRC663 will be controlled by the MIFARE SAM AV3 in X- mode.
User Manual MIFARE SAM AV3 Evaluation Board MCU Interface Selection The connection between the MIFARE SAM AV3 and the MCU is done by either of the 2 supported I²C interface locations on the Arduino® R3 header. The selection is done by JP3 and JP4, which are placed on the corresponding pins. MIFARE SAM AV3 host interface and VDD selection The MIFARE SAM AV3 evaluation board offers two options to interface with the MIFARE SAM AV3: I²C and ISO7816. I²C was explained earlier in this document.
User Manual MIFARE SAM AV3 Evaluation Board 7 MIFARE SAM AV3 – required default configuration changes To ensure backwards compatibility to the SAM AV2 the default configuration is set for the NXP frontend reader PN523 IC for X-mode communication. Along with this, the I²C processing clock speed needs to be adjusted as well as this is set to I²C fast mode (12 MHz processing clock speed) and needs to be reduced for operating the CLRC663. This needs to be changed using the SAM SetConfig command once.
User Manual MIFARE SAM AV3 Evaluation Board 8 Modes of Operation X-Mode The easiest way to get started with the MIFARE SAM AV3 evaluation board is to operate the MIFARE SAM AV3 in X-mode. See an example configuration below where the SAM can be accessed via the I²C1 interface from the MCU, and will communicate to the CLRC663 via its host interface,configured as I²C. The SAM VDD in below example is connected to IO6.
User Manual MIFARE SAM AV3 Evaluation Board XS - Mode Figure 19: XS-mode configuration In this configuration, the CLRC663 is connected on its host interface via SPI to the MCU,and on the second interface via I²C to the SAM. The MIFARE SAM AV3 is connected via I²C1 to the MCU. In this way, the MCU can control the CLRC663's LPCD procedure, and if a card is detected, the SAM can be switched on and take over the control over the CLRC663.
User Manual MIFARE SAM AV3 Evaluation Board Figure 21: related product ISO7816 ID1 to SIM-SAM Adapter Table of Figures Figure 1 Building Blocks and power supply _______________________________________________________ 3 Figure 2: MIFARE SAM AV3 evaluation board Block Diagram _________________________________________ 4 Figure 3 Building Blocks and connectors _________________________________________________________ 4 Figure 4 typical development setup ________________________________________________________
User Manual MIFARE SAM AV3 Evaluation Board Document References 1. Data sheet – MIFARE SAM AV3, document number DS3235xx via NXP DocStore. 2. Application Notes – please visit NXP.com The document content may see additions and modifications in future releases. GMMC GmbH does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information.
