It is 3.3V. That is shown in the schematic and the manual.

Gerald


On Thu, Jan 16, 2014 at 1:51 AM, liyaoshi <[email protected]> wrote:

> This is depend on your eMMC chip ,eMMC spec defines 2 types called either
> High voltage or Dual Voltage
>
> As I understand , on am335x , Just use 3.3v io
>
>
> 2014/1/16 Satz Klauer <[email protected]>
>
>> Hi,
>>
>> I try to access the eMMC out of an own bare-metal application,
>> unfortunately with no success until now.
>>
>> One of the parameters that has to be set in CPU is the bus-voltage the
>> eMMC has to be accessed with. For external SD-card (MMC0)
>> HS_MMCSD_SUPPORT_VOLT_1P8 and HS_MMCSD_SUPPORT_VOLT_3P0 are given. But
>> what is the correct value for eMMC (MMC1)?
>>
>> Thanks!
>>
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>
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