MMC / way from SD device to boot the host device, MMC / from SD device can boot a bootable host device and the host device MMC / SD device

摘要

To boot the host device from a peripheral device via an interface, such as a MMC / SD interface comprising a power supply terminal, a data bus with a data bus terminal, a clock line with a clock terminal, and a command line with a command terminal It is a system and method. Power is supplied to the power supply terminal, the terminal command interface similar or MMC / SD is set to the low signal level during startup. The data bus is monitored to search for the start bit of data transmission.