TIDM-NFC-SDM

NFC Transceiver's Direct Mode supporting MIFARE® Classic & Proprietary Protocols

TIDM-NFC-SDM

Design files

Overview

Special Direct Mode on the TRF7970A and TRF7964A enables the flexibility to easily support a wide range of proprietary protocols, most commonly MIFARE Classic. In these applications, Special Direct Mode drastically reduces the resource demand on host MCUs while also providing more stable operation. This design demonstrates MIFARE Classic authentication on the widely available TRF7970AEVM.

Features
  • Features TRF7970A reader firmware demonstrating authentication of MIFARE Classic Tags
  • Allows users to easily change the MIFARE Classic keys used for authentication
  • Developed on an easy to use and widely available reference platform, the TRF7970AEVM
  • Firmware is portable to other microcontrollers.
  • Source code discussed in this design can be downloaded from SLOA214.
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDRDB1.PDF (392 K)

Detailed schematic diagram for design layout and components

TIDRDB0.PDF (222 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDC955.ZIP (155 K)

Design file that contains information on physical board layer of design PCB

Products

Includes TI products in the design and potential alternatives.

MSP430 microcontrollers

MSP430F237016 MHz MCU with 32KB Flash, 2KB SRAM, comparator, I2C/SPI/UART, HW multiplier

Data sheet: PDF
Other wireless products

TRF7960ATRF7960A Multi-Protocol Fully Integrated 13.56-MHz RFID Reader/Writer IC

Data sheet: PDF | HTML
Other wireless products

TRF7963ATRF7963A Fully Integrated 13.56-MHz RFID Reader/Writer IC for ISO14443A/B

Data sheet: PDF | HTML
Other wireless products

TRF7964ATRF7964A Multi Protocol Fully Integrated 13.56-MHz NFC / RFID Reader/Writer IC

Data sheet: PDF | HTML
Other wireless products

TRF7970AMulti-Protocol Fully Integrated 13.56-MHz NFC / RFID Transceiver IC

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Application note Using Special Direct Mode With the TRF7970A Feb. 20, 2015

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