Semiconductor memory with self-refresh capability

Electrical computers and digital processing systems: memory – Storage accessing and control – Access timing

Reexamination Certificate

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Details

C711S106000, C711S005000

Reexamination Certificate

active

10387141

ABSTRACT:
A memory device comprises a plurality of banks of storage locations accessible in response to access requests. Data refresh means are provided for refreshing data stored in the storage locations within prescribed times, whereby the memory device autonomously perform a refresh. A cache memory is embedded in the memory device. The cache memory has a plurality of cache storage locations for storing data contained in recently accessed storage locations. Access control means control the access to the storage locations and to the cache storage locations in response to the access requests: an access request is diverted to the cache memory whenever access to anyone of the recently accessed storage locations is requested. Any cache storage location is freely associable to any storage location in any bank, the association between any cache storage location and a storage location in the plurality of banks being established by a storage location association table in the access control means.

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European Search Report for EP 02 42 5138 dated Nov. 5, 2002.

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