Low power set associative cache memory with status inhibit of ca

Details Low power set associative cache memory with status inhibit of ca Low power set associative cache memory with status inhibit of ca

1996-06-10

1997-10-28

Kim, Matthew M.

395471, G06F 1200

Patent

active

056825153

ABSTRACT:
A four-way cache data memory is provided, having a cache data RAM (30) and a tag RAM (28). The tag RAM (28) is enabled to access one of the tags therein. This tag is compared with the tag portion of the received memory address to determine if a tag is stored therein. If a true comparison results, a HIT is indicated and this is utilized to enable a portion of the cache data RAM (30). The data in the enabled portion is then output on the data bus. Additionally, the data output of the cache data RAM (30) is inhibited unless it is determined that the cache data stored in the cache data RAM (30) is valid, this information stored in a status RAM (62).

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