Non-bus request refresh system for shortening refresh timing

Details Non-bus request refresh system for shortening refresh timing Non-bus request refresh system for shortening refresh timing

1989-08-31

1992-09-15

Bowler, Alyssa H.

Static information storage and retrieval

Magnetic bubbles

Guide structure

365222, 36523008, G06F 1314, G06F 1200, G11C 800

Patent

active

051485354

ABSTRACT:
A system for refreshing dynamic random access memory that does not request the bus from the CPU prior to performing a refresh operation. The system initiates a refresh operation when the end of a CPU bus cycle is signalled and stores status and address data if the CPU initiates a new CPU bus cycle prior to the completion of the refresh operation.

REFERENCES:
patent: 4649511 (1987-03-01), Gdula
patent: 4884234 (1989-11-01), Keys et al.
patent: 4924381 (1990-05-01), Tokume
patent: 4956820 (1990-09-01), Hashimoto

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