SLOA227B October   2015  – March 2019 TRF7964A , TRF7964A , TRF7970A , TRF7970A

 

  1.   NFC/HF RFID reader/writer using the TRF7970A
    1.     Trademarks
    2. 1  Terms, Definitions, and Symbols
    3. 2  Introduction
    4. 3  Initial RF Collision
    5. 4  TRF7970A Register Settings
    6. 5  Reader/Writer Mode
      1. 5.1 Technology Activation Using the TRF7970A
        1. 5.1.1 ISO14443-3 Type A (Type 2 and Type 4A Tags)
          1. 5.1.1.1 Additional Tag Activation Commands for Type 4A Tags
        2. 5.1.2 ISO14443B-3 (Type 4B Tags)
          1. 5.1.2.1 Selection for Type 4B Tags
        3. 5.1.3 ISO18092 (Type 3 Tags)
        4. 5.1.4 ISO15693 (Type 5 Tags)
      2. 5.2 Tag Memory Format With NDEF Examples
        1. 5.2.1 Type 2 Tags
          1. 5.2.1.1 Layout
          2. 5.2.1.2 NDEF Format
            1. 5.2.1.2.1 Static Memory Structure
            2. 5.2.1.2.2 Dynamic Memory Structure
          3. 5.2.1.3 Capability Container
        2. 5.2.2 Type 3 Tags
          1. 5.2.2.1 Layout
          2. 5.2.2.2 NDEF Format
          3. 5.2.2.3 Attribute Information Block
        3. 5.2.3 Type 4 Tags
          1. 5.2.3.1 Layout
          2. 5.2.3.2 NDEF Format
          3. 5.2.3.3 Capability Container
        4. 5.2.4 Type 5 Tags
          1. 5.2.4.1 Layout
          2. 5.2.4.2 NDEF Format
          3. 5.2.4.3 Capability Container
    7. 6  Hardware Description
      1. 6.1 LaunchPad™ Development Kit and BoosterPack™ Plug-in Module Setup
        1. 6.1.1 BoosterPack Plug-in Module: DLP-7970ABP
        2. 6.1.2 LaunchPad Development Kit: MSP-EXP430F5529LP
        3. 6.1.3 LaunchPad Development Kit: MSP-EXP432P401R
      2. 6.2 Bundle Available for Purchase
    8. 7  Reader/Writer Firmware Example
      1. 7.1 Reader/Writer APIs
      2. 7.2 Implementing a Reader/Writer Sample Application
        1. 7.2.1 Low-Level Initialization
          1.        Example 1. MCU and TRF7970A Initialization Code Snippet
        2. 7.2.2 Reader/Writer NFC Stack Configuration
          1.        Example 2. Reader/Writer Stack Configuration Code Snippet
        3. 7.2.3 Activation
        4. 7.2.4 Reading and Writing Tags
    9. 8  Quick Start Guide
    10. 9  Operational Overview
    11. 10 Reader/Writer Interoperability Results
    12. 11 Conclusion
    13. 12 References
  2.   Revision History

10 Reader/Writer Interoperability Results

The firmware example provided has been tested for interoperability between the TRF7970A and a multitude of NFC tags existing in the market to ensure that each supported tag type can be activated, selected, and have NDEF data read and written. Use the legend shown in Table 6 for the results in Table 7.

Table 6. Legend for NFC/RFID Tag Support

Legend
Supported ✓
Not Supported ✗

Table 7 lists the results from the tests that were run to validate the interoperability of the reader/writer firmware stack with various existing tag technology types and NFC devices that are currently in the market. NFC Type 1 tags are not supported as they are not ISO compliant and therefore require the use of Direct Mode 0 to communicate with them. While it is possible from a hardware standpoint to support these tags with the TRF7970A, the reader/writer firmware as provided does not support Type 1 tags.

Table 7. NFC/RFID Tags Supported by Reader/Writer Mode

NFC/RFID Tags Read Write
Type 1 ✗ ✗
Type 2 ✓ ✓
Type 3 ✓ ✓
Type 4A ✓ ✓
Type 4B ✓ ✓
RF430CL33xH ✓ ✓
Type 5 ✓ ✓
RF430FRL15xH ✓ ✓
RF37S114 ✓ ✓
Tag-It HF-I Standard ✓ ✓
Tag-It HF-I Pro ✓ ✓
Tag-It HF-I Plus ✓ ✓