Static information storage and retrieval – Associative memories – Ferroelectric cell
Patent
1985-02-22
1987-08-04
Fears, Terrell W.
Static information storage and retrieval
Associative memories
Ferroelectric cell
364200, 365189, G11C 1300
Patent
active
046850821
ABSTRACT:
A simplified cache with automatic updating for use in a memory system. The cache and the main memory receive data from a common input, and when a memory write operation is performed on data stored at a memory location for which there is a corresponding cache location, the data is written simultaneously to the cache and to the main memory. Since a cache location coresponding to a memory location always contains a copy of the data at the memory location, there is no need for dirty bits or valid bits in the cache resisters and the associated logic in the cache control. The main memory used with the invention may receive data either from a CPU or from I/O devices, and the cache includes apparatus permitting the CPU to perform cache read operations while the main memory is receiving data from an I/O device.
REFERENCES:
patent: 4445177 (1984-04-01), Bratt
Cheung Kin L.
Einarson Jeffrey W.
Fears Terrell W.
Nelson Gordon E.
Shanahan Michael H.
Wang Laboratories, Inc.
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