On Mon, Jul 27, 2009 at 01:09:47PM +0100, David Vrabel wrote: > Philip Langdale wrote: > > > > Both the (Simplified) SD and SDIO specifications do not formally > > define the 'low voltage' range in the way the MMC spec does. ie: You > > won't find anything in the SD specs that even tell you what the range > > is - it just says that it exists. > > Standard SD/SDIO cards only support 2.7-3.6V. > > 1.8V operation is added in SD physical spec 3.00 and is part of any of > the UHS-1 modes (SDR12-SDR104 and DDR50). It has a different timings > and requires a different (3.00 compliant) host controller. Is the 3.00 spec publicly available? -- To unsubscribe from this list: send the line "unsubscribe linux-embedded" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
