Texas Instruments: TRF7970AEVM Evaluation Module  for TRF7970A Multi-Protocol Fully Integrated 13.56-MHz RFID/NFC Transceiver IC

The Texas Instruments TRF7970AEVMTRF7970AEVM is a self contained development platform which can be used to independently evaluate/test the performance of the TRF7970A RFID/Near Field Communications (NFC) Transceiver IC, custom firmware, customer designed antennas and/or potential transponders for a customer defined RFID/NFC application.

The TRF7970A evaluation moduleTRF7970A evaluation module (EVM) is intended to be used by to demonstrate the capabilities of the TRF7970A and help aid in the development process by providing a working hardware/firmware reference example for traditional HF (13.56 MHz) RFID and also NFC Forum operations.

Hardware Description

• The TRF7970AEVMTRF7970AEVM is a self contained development platform which can be used to independently evaluate/test the performance of the TRF7970A IC, custom firmware, customer designed magnetic dipole antennas and/or potential transponders for a customer defined RFID/NFC Forum application.
• The TRF7970AEVMTRF7970AEVM is configured from the factory in parallel communication mode between the MSP430F2370MSP430F2370 and the TRF7970ATRF7970A via 0-Ω resistors between HDR_4 and HDR_5 pads. On power up, the preloaded multiProductLinkmultiProductLinkmultiProductLinkMSP430F2370 firmware also checks the voltage level of P2.3 (pin 15), which is factory configured at HDR_7 to have I/O_SEL connected to Parallel connection via a 0-Ω resistor.
• If the user wants to change to SPI with Slave Select operation, all that is needed is to move all the 0-Ω resistors connecting HDR_4 and HDR_5 together over so HDR_5 and HDR_6 are connected as well as moving 0-Ω resistor over on HDR_7 so that I/O_SEL and SPI connected instead.
• The preloaded multiProductLinkmultiProductLinkmultiProductLinkMSP430 firmware handles either hardware configuration case, parallel or SPI with SS.
• If a logic analyzer is to be connected to the TRF7970AEVMTRF7970AEVM, the user can install three-position 2-mm board headers at positions HDR_1 and HDR_3 for observation of DATA_CLK and IRQ signals.
• An 8-position 2-mm board header can be installed at position HDR_5 for observation of the parallel or SPI signals between the MSP430F2370MSP430F2370 and the TRF7970ATRF7970A.

Key Applications: Mobile Devices (Tablets, Handsets) ,Secure Pairing (Bluetooth, WiFi, Other Paired Wireless Networks), Public Transport or Event Ticketing, Passport or Payment (POS) Reader Systems, Short-Range Wireless Communication Tasks (Firmware Updates), Product Identification or Authentication, Medical Equipment or Consumables, Access Control, Digital Door Locks, Sharing of Electronic Business Cards.