Electrical computers and digital processing systems: memory – Address formation – Generating prefetch – look-ahead – jump – or predictive address
Reexamination Certificate
2007-02-27
2009-06-23
Song, Jasmine (Department: 2188)
Electrical computers and digital processing systems: memory
Address formation
Generating prefetch, look-ahead, jump, or predictive address
C711S103000, C711S137000, C711S154000
Reexamination Certificate
active
07552311
ABSTRACT:
The present invention provides a memory device that can flexibly decide the data to be preread. The memory device according to the present invention includes: a nonvolatile memory; a buffer memory having a higher access speed than the nonvolatile memory; and a control circuit. The control circuit creates a preread data management table that associates a logical address of preread data specified by a preread command inputted from the outside and a buffer memory address for storing the preread data. Moreover, the control circuit reads data specified by the command from the nonvolatile memory and stores it in the buffer memory as preread data. When a logical address specified in a read command inputted from the outside matches a logical address associated by the preread data management table, the control circuit outputs corresponding preread data from the buffer memory.
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Goto Hiroyuki
Hara Fumio
Shibuya Hirofumi
Shiota Shigemasa
Miles & Stockbridge P.C.
Renesas Technology Corp.
Song Jasmine
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