[MinnowBoard] What is the IO voltage on the low-speed connector for the MinnowBoard MAX?

[David Anders]

Peter,


> On September 1, 2014 at 5:38 PM Peter Wieland <peterwie at microsoft.com> wrote:
>
>
> I've been scouring the e-linux wiki and the mb.org pages and can't find
> anything to confirm whether the I/O voltage on the low-speed connector is 1.8V
> or 3.3V.  I was thinking it was 1.8, but I noticed there's a 3.3V reference
> pin but no 1.8V reference pin and so I'm hoping that's because it's running at
> 3.3V.
>

the base i/o voltage on the Baytrail-I processor is 1.8V, however knowing that
most of the low speed devices that people/makers would want to use with on the
Low Speed Expansion, we included level shifters onboard. all of the i/o on the
LSE is at 3.3V.


Thank you for bringing this question up. i've add a note on the Low Speed
Expansion section of the wiki page:

http://elinux.org/Minnowboard:MinnowMax#Low_Speed_Expansion_.28Top.29

Dave



> -p
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