Electronic device for computer

Details Electronic device for computer Electronic device for computer

1996-03-01

1998-04-14

Sheikh, Ayaz R.

395402, G06F 1300, G06F 1200

Patent

active

057403775

ABSTRACT:
The electronic computer device according to the present invention comprises an alternative CPU 22 which operates in place of a low-speed CPU on the mother board when it is connected to such as a connector on the mother board of a computer. The electronic computer device 20 is provided with an address bus on its PCB 24, of which bus width is larger than that of the address bus on the mother board 50, and the dual in-line memory modules inserted in the expansion slots 40 connected to the such address bus provides an address space larger than 16 Mbytes. The alternative CPU 22 which can utilize this large address space can perform processing beyond the limitation of the bus width of the address bus on the side of the mother board 50. The DMA transfer to an address area which is not supported by the DMA controller on the side of the mother board 50 can be realized simply by performing the DMA transfer once to the address area of lower significance.

REFERENCES:
patent: 4545010 (1985-10-01), Salas et al.
patent: 4969086 (1990-11-01), Pfeiffer et al.
patent: 5079737 (1992-01-01), Hackbarth
patent: 5297272 (1994-03-01), Lu et al.
patent: 5410726 (1995-04-01), Baqui et al.
patent: 5455927 (1995-10-01), Huang
patent: 5493655 (1996-02-01), Shen et al.
patent: 5513329 (1996-04-01), Pecone
patent: 5546563 (1996-08-01), Chuang
patent: 5586270 (1996-12-01), Rotier et al.
patent: 5586304 (1996-12-01), Stupek, Jr. et al.
patent: 5588143 (1996-12-01), Stupek, Jr. et al.
patent: 5623618 (1997-04-01), Brewer et al.
Electronic Design, vol. 39, No. 1, 10 Jan. 1991, pp. 130-133, 136-138, 140, XP000207766: Rozenshein Z: "Boost PC's Floating-Point Speed With An Add-On DSP Coprocessor Board".
Hewlett-Packard Journal, vol. 43, No. 2, 1 Apr. 1992, pp. 110-116, XP000356392 Moore MP et al: "A High-Performance Measurement Coprocessor For Personal Computers".

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