MEMORY CARD SYSTEM, METHOD TRANSFERRING DATA THEREOF, AND SEMICONDUCTOR MEMORY DEVICE

摘要

A memory card system includes a host that issues a read command and a memory card that upon receiving the read command sends read data to the host in synchronism with a read clock signal generated within the memory card. In addition, the memory card sends the read clock signal to the host, and the host receives the read data in synchronism with the read clock signal, for increasing the allowable setup time period at the host.