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Last Post 24 Oct 2013 05:02 PM by  steven.eckhoff
SD Pull-Ups
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steven.eckhoff
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24 Oct 2013 04:36 PM
    We are having a critcal design review for one our products that is using your Torpedo. I have a question concering your DM3730/AM3703 Torpedo SOM Hardware Specification. For the SDx Data lines - example (page 26) J1 pin 96, SD3_DATA0 (default) states that the signal requires a 10K pull-up to 1.8v. If the signal is not used, is a pull-up required? (DM3730 data sheet page 33 pin AE4 - MMC2_DAT4 states that the signal has an internal pullup/pulldown available) 
    steven.eckhoff
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    24 Oct 2013 05:02 PM
    If you are not using the SD interface then you do not need the pull-ups.

    If you are not going to use the signals, then make sure your software is configuring them in safemode, so you don't have any floating inputs.
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