Patent ID: 9146579
Filing Date: 2015-09-29
Classification: G06F,G11C

Abstract:
1. An embedded multimedia card (eMMC) comprising: a clock channel that receives a clock from a host; a complementary clock channel that receives a complementary clock from the host; a command/response channel that receives a command from the host and communicates a response to the host; a plurality of data channels that receives data from the host and communicates data to the host; a return clock channel that communicates a return clock to the host synchronously with communication of the data to the host; a complementary return clock channel that communicates a complementary return clock to the host; a reference voltage channel that either receives a reference voltage from the host, or communicates a reference voltage to the host; and an extended card specific data (CSD) register (“EXT_CSD register”) configured to store at least one of: eMMC information indicating whether at least one of the complementary clock, complementary return clock, and reference voltage is supported by the eMMC in the VENDOR_SPECIFIC_FIELD of the EXT_CSD register.