Memory access control apparatus

Details Memory access control apparatus Memory access control apparatus

1988-03-28

1991-01-08

Fleming, Michael R.

Boots, shoes, and leggings

3642481, 3642432, 3642551, G06F 1200

Patent

active

049841491

ABSTRACT:
A memory access control apparatus according to the present invention which controls an IC memory of which is under the control of a BIOS in the same manner as in a normal disk unit. External file units including the IC memory, a floppy disk unit, a hard disk unit, and the like are assigned a series of drive numbers. Registers store parameters for using the IC memory as an external file, and an access address and a transfer length of the IC memory are expressed in a sector form. The BIOS receives the access address and the parameters, translates the address into a byte form address, and transfers data to a corresponding area.

REFERENCES:
patent: 3940951 (1976-03-01), Christiansen
patent: 4115850 (1978-09-01), Houston et al.
patent: 4145745 (1979-03-01), DeBijl et al.
patent: 4399503 (1983-08-01), Hawley

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