Apparatus for determining a computer memory configuration of mem

Details Apparatus for determining a computer memory configuration of mem Apparatus for determining a computer memory configuration of mem

1993-01-11

1995-08-29

Gossage, Glenn

Boots, shoes, and leggings

364DIG1, 3642442, 3642445, 364243, 364DIG2, 3642467, 3649691, 364245, G06F 1300

Patent

active

054468604

ABSTRACT:
An apparatus is provided for determining a configuration of memory modules. Each of the memory modules produces presence detect bits. In a first feature, the apparatus includes an external register for receiving the presence detect bits from the memory modules in parallel and a memory controller integrated circuit. The memory controller integrated circuit includes an internal register for storing the presence detect bits and logic circuitry for determining a memory configuration. The presence detect bits are serially transferred from the external register to the internal register. In a second feature, the logic circuitry for determining a memory configuration includes comparator circuitry for comparing the presence detect bits of each pair of memory modules and generating a match signal or a mismatch signal. When a match signal occurs, the presence detect bits of the memory module pair are loaded into a memory configuration register. When a mismatch signal occurs, a mismatch code is loaded into the memory configuration register.

REFERENCES:
patent: 3958222 (1976-05-01), Messina et al.
patent: 4234934 (1980-11-01), Thorsrud
patent: 4414627 (1983-11-01), Nakamura
patent: 4562532 (1985-12-01), Nishizawa et al.
patent: 4571676 (1986-02-01), Mantellina et al.
patent: 4654787 (1987-03-01), Finnell et al.
patent: 4794559 (1988-12-01), Greenburger
patent: 4882700 (1989-11-01), Mauritz et al.
patent: 5040153 (1991-08-01), Fung et al.
patent: 5179686 (1993-01-01), White
patent: 5269010 (1993-12-01), MacDonald
patent: 5270964 (1993-12-01), Bechtolsteim et al.
"Memory Presence Detect", IBM Technical Disclosure Bulletin, vol. 29, No. 3, Aug. 1986, p. 1381.

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