Protocol TMS3705

Juliana Araujo

Prodigy 70 points

Other Parts Discussed in Thread: TMS3705

Hello,

I would want know the protocol for comunication between microcontroller and TMS3705,

for read transponders the like with RI-INL-R9QM ( one LF transponder).

Thank you for helping

Juliana

over 14 years ago

0 Eddie LaCost over 14 years ago

TI__Mastermind 44795 points

Hi Juliana,

The communication protocol is described starting on page 6 of the datasheet with the SCI encoder description. Figure 2 shows the timing example for reading a R/O tag such as RI-INL-R9QM. I have also attached some useful notes including scope shots.

Datasheet: http://focus.ti.com/lit/ds/symlink/tms3705.pdf

Introduction to Low Frequency Reader: http://www.ti.com/litv/pdf/scba020

Notes on TMS3705A1DRG4 Read.ppt

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Protocol TMS3705