Memory module selection and reconfiguration apparatus in a data

Details Memory module selection and reconfiguration apparatus in a data Memory module selection and reconfiguration apparatus in a data

1982-09-24

1986-02-18

Chan, Eddie P.

Boots, shoes, and leggings

G06F 1300, G06F 1200

Patent

active

045716765

ABSTRACT:
A memory module selection and reconfiguration apparatus in a data processing system wherein a modular working memory formed by a plurality of memory modules sends to a central processing unit information related to the capacities of the constituting modules (M1, M2, M3, M4) during the system initialization. The central unit processes such information and provides memory, via a channel (30), with information representative of the capacity of the first modules (G1), of the sum of the capacities of the first and second module (G2), of the sum of the capacities of the first, second and third module (G3) and so on, up to the total capacity of the working memory. This information is stored into registers (31, 32), each one related to a possible module, of a module selection unit included inside the working memory. When the memory is addressed, the most significant address portion (BA 03-06) is compared simultaneously by several comparators (33, 34, 35, 36), one for each register, with the content of the several registers. The result of the comparison from the comparators are applied to a decoder (37) which generates signals selecting one among the several memory modules.

REFERENCES:
patent: 3292151 (1966-01-01), Barnes et al.
patent: 3555513 (1971-01-01), Hauck et al.
patent: 4001786 (1977-01-01), Boehm
patent: 4025903 (1977-05-01), Kaufman et al.
patent: 4236207 (1980-11-01), Rado et al.

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