Design of pre-processor for effective analysis of eMMC protocol

As mobile devices such as smartphones, tablets, etc. employ large NAND storage with high performance interface, the data traffic from/to the storage increases significantly and interface protocol becomes complicated as well. The increase in data traffic and protocol complexity makes it difficult the complete analysis of device accesses and responses. In this paper, we present a pre-processor that could be used to identity the eMMC operations at the interface level. This processor is able to recognize operation types, interface channel configuration and additionally operation durations for thorough analysis. The processor is implemented on an FPGA platform and its operation is verified using a full-featured mobile device.