Cache controller giving versatility to cache memory structure

Details Cache controller giving versatility to cache memory structure Cache controller giving versatility to cache memory structure

1988-03-31

1989-05-23

Fears, Terrell W.

Static information storage and retrieval

Associative memories

Ferroelectric cell

364200, 364900, G11C 1500

Patent

active

048336424

ABSTRACT:
An associative type cache controller includes a plurality of directory banks each holding an address tag of a cache block, each of the directory banks having a comparison circuit for comparing the content of the directory bank with a tag portion of a current reference address. The cache controller comprises a register for holding the association unit number, and a replacement block determining unit for indicating, in accordance with the content of the association unit number holding register, the directory bank including the cache block to be replaced at the time of cache replacement, so that the replacement directory banks are limited in accordance with the designated association unit number. Thus, the association unit number of a related cache memory can be changeably designated.

REFERENCES:
patent: 4755974 (1988-07-01), Yamada et al.
patent: 4758982 (1988-07-01), Price

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