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ADS8686S: Is that SDI line in required for 2 wire i.e SDOA and SDOB serial interfcae used in software mode

Gopal Nimje
Prodigy 10 points
Part Number: ADS8686S

We use both the SDOA and SDOB pin in software mode and I am the using the Dual SPI mode in microcontroller. In dual SPI , there are the no SDI pin availble. Please suggest SDI line require or not. If yes, please suggest how to interface SDOA , SDOB and SDI line to microcontroller

  • 0
    TI__Guru 57366 points

    Hello Gopal,

    Sorry for missing this post. Do you still need help with your question?

    Section 7.4.1.12 DB10/SDI (Input/Output) of the device data sheet explains that this pin can be tied to DGND if you use the hardware serial interface mode.

    Regards,

    Ryan