Apparatus for determining maximum usable memory size

Details Apparatus for determining maximum usable memory size Apparatus for determining maximum usable memory size

1988-08-25

1991-06-25

Chan, Eddie P.

Boots, shoes, and leggings

364970, 3649705, 36496577, 3649294, G06F 1202

Patent

active

050273132

ABSTRACT:
An apparatus for determining maximum usable memory size is disclosed. Permanent connections on a base memory unit and additional memory modules provide signals indicative of the amount of memory installed at each location. The signals are read by the processor and used in conjunction with a lookup table or size counting method to determine maximum usable memory size and the existence of installation or operation errors. The maximum size is written to a latch which provides the value to logic which enables the appropriate memory locations when addressed by the processor.

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patent: 4545010 (1985-10-01), Salas et al.
patent: 4571676 (1986-02-01), Mantellina et al.
patent: 4654787 (1987-03-01), Finnell et al.
patent: 4740916 (1988-04-01), Martin
patent: 4860252 (1989-08-01), Sykora

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