Data processing system and associated process using memory cards

Details Data processing system and associated process using memory cards Data processing system and associated process using memory cards

1989-12-13

1992-11-24

Gossage, Glenn

Boots, shoes, and leggings

3642525, 3649582, 36518908, G06F 1300

Patent

active

051670291

ABSTRACT:
A data processing network includes multiple processing devices, multiple memory cards of main storage, and a shared interface. Each of the memory cards includes memory arrays, an internal register for temporarily storing a data word read from the arrays, and logic circuitry. When one of the processing devices sends a set or reset command to one of the memory cards, the processor also sends a data mask. A data word to be modified is retrieved from a selected location in the memory arrays and latched into the internal register. The logic circuitry applies the data mask to a data word in the internal register, to modify the data word according to the data mask, then returns the data word to the selected location in the arrays.

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patent: 4412286 (1983-10-01), O'Dowd et al.
patent: 4520439 (1985-05-01), Liepa
patent: 4569016 (1986-02-01), Hao et al.
patent: 4570222 (1986-02-01), Oguchi
patent: 4589613 (1986-05-01), Duncan

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