On 19 August 2014 10:45, Uwe Kleine-König
wrote:
> From: Sascha Hauer
>
> Some eMMC and SD cards implement a DSR register that allows to tune
> raise/fall times and drive strength of the CMD and DATA outputs.
> The values to use depend on the card in use and the host.
> It might be needed to redu
From: Sascha Hauer
Some eMMC and SD cards implement a DSR register that allows to tune
raise/fall times and drive strength of the CMD and DATA outputs.
The values to use depend on the card in use and the host.
It might be needed to reduce the drive strength to prevent voltage peaks
above the host
