What to do with unused USB & SATA power pins

1541703

Other Parts Discussed in Thread: TMS320C6748

If I am not using the USB or SATA functions, can I just ground the USB & SATA power pins or do I need to tie them to thier respective power rails?

over 15 years ago

0 jc-ti over 15 years ago

TI__Mastermind 27585 points

We have a schematic checklist which addresses what to do with the unused pins. This information will also be in the next revision of the datasheet.

http://processors.wiki.ti.com/index.php/OMAP-L1x_Schematic_Review_Checklist

Jeff

0 1541703 over 15 years ago in reply to jc-ti

Intellectual 280 points

That is great, thanks. In the right column of the USB table under "if not used", I assume the title was suppose to be When USB1 is not used. Is that true?

0 1541703 over 15 years ago in reply to 1541703

Intellectual 280 points

I just noticed that the list of devices that the schematic checklist applies (near the top of the checklist) does not include the TMS320C6748 which is the part I am using. Is there one for my device?

0 clam over 15 years ago in reply to 1541703

TI__Expert 8785 points

For the USB table, I believe the last column should be "When USB0 is used, and USB1 is not used".

This should apply to the C6748 as well. I'll send this feedback to the wiki owner to get that updated.

- Christina

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What to do with unused USB & SATA power pins