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Application Report
SLOA155–May 2011
TRF7960A Firmware Design Hints
Josh Wyatt, Kostas Aslanidis, Juergen Mayer-Zintel................................... Texas Instruments Embedded RF
ABSTRACT
This application report is a reference for the firmware developer using TRF7960A in conjunction with
microcontroller (for example, an MSP430™ or ARM™ device). This document supersedes TRF796x
Software Design Hints (SLOA153).
Contents
1 ISO15693 Only – Direct Command (0x14) EOF/TX Next Slot ........................................................ 2
2 Missing IRQ .................................................................................................................. 2
3 Lost IRQ ...................................................................................................................... 2
4 Wrong Data Due to Overshoots ........................................................................................... 2
5 ISO14443A Decoder ........................................................................................................ 3
6 Tags That Do Not Follow ISO14443A Layer 4 Framing ............................................................... 3
7 Special SPI With SS Handling ............................................................................................ 3
List of Tables
1 Firmware Hints Reference Table ......................................................................................... 2
2 Known Limitations With Specific Tags ................................................................................... 5
3 TRF7960A Special Functions Register (0x10).......................................................................... 5
MSP430 is a trademark of Texas Instruments.
ARM is a trademark of IAR Systems AB.
MIFARE, DESFire are trademarks of NXP Semiconductors.
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SLOA155–May 2011 TRF7960A Firmware Design Hints
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