作者: Toshiyuki Shinagawa-ku Nishihara , Yoshio Shinagawa-ku Sakai
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摘要: A storage device able to make a redundant write operation of unselected data unnecessary and optimize an arrangement pages state having high efficiency for rewriting, wherein the has first memory unit, second unit different access speed from memory, control circuit, circuit function timely moving stored in two ways between speeds reading or rewriting.