Data processor with instruction cache memory

Details Data processor with instruction cache memory Data processor with instruction cache memory

1988-08-02

1991-04-30

Chan, Eddie P.

Boots, shoes, and leggings

36424341, 3642716, G06F 1300

Patent

active

050124102

ABSTRACT:
Conventional microprocessors access cache memory and external memory using a common data bus and share a single program counter. According to this invention, the cache memory and the external memory have corresponding program counters and separate data buses. The capacity to update the cache memory program counter concurrently with a cache memory access increases the speed of data processing.

REFERENCES:
patent: 4317168 (1982-02-01), Messina et al.
patent: 4366540 (1982-12-01), Berglund et al.
patent: 4467419 (1984-08-01), Wakai
IEEE Spectrum, 12/87, "Cache Memory Design; an Evolving Art".

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