Method of direct memory access control

Details Method of direct memory access control Method of direct memory access control

1988-05-10

1991-11-19

Heckler, Thomas M.

Boots, shoes, and leggings

3642394, 3642397, 36424231, 3642409, 364DIG1, G06F 1328

Patent

active

050670751

ABSTRACT:
In a system comprising input/output devices, a memory and a control processor, direct memory access information (memory address and data) from an input/output device to the processor is stored temporarily and then a direct memory access request is transmitted to the processor. The processor bus holding time at direct memory access is reduced, and the processing speed of the processor is improved.

REFERENCES:
patent: 4180855 (1979-12-01), Buedel
patent: 4312066 (1982-01-01), Bantz et al.
patent: 4438488 (1984-03-01), Shibayama et al.
patent: 4455620 (1984-06-01), Watanabe et al.
patent: 4458313 (1984-07-01), Suzuki et al.

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