Out of store indicator for a cache store in test mode

Details Out of store indicator for a cache store in test mode Out of store indicator for a cache store in test mode

1977-12-22

1980-02-26

Springborn, Harvey E.

Boots, shoes, and leggings

G06F 1100, G06F 1300

Patent

active

041908856

ABSTRACT:
A Data Processing System comprises a central processor unit, a main memory and a cache, all coupled in common to a system bus. The central processor unit is also separately coupled to the cache. Apparatus in cache is responsive to signals received from the central processor unit to initiate a test and verification mode of operation in cache. This mode enables the cache to exercise various logic areas of cache and to indicate to the central processor unit hardware faults.

REFERENCES:
patent: 3611315 (1971-10-01), Murano et al.
patent: 3840862 (1974-10-01), Ready
patent: 3896419 (1975-07-01), Lange et al.
patent: 4042912 (1977-08-01), Bachman et al.

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