DMA control for continuing transfer to input/output device in a

Details DMA control for continuing transfer to input/output device in a DMA control for continuing transfer to input/output device in a

1993-09-03

1996-07-23

Swann, Tod R.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Converting, per se, of an ac input to corresponding dc at an...

327339, 327352, 364DIG2, G06F 1328

Patent

active

055399169

ABSTRACT:
A DMA control system continuously grants permission to access the I/O device and memory to continue data transfer in a cycle steal mode when there is a continuous stream of DMA requests from a number of I/O devices by producing a logical sum of the DMA requests.

REFERENCES:
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patent: 4451884 (1984-05-01), Heath et al.
patent: 4455620 (1984-06-01), Watanabe et al.
patent: 4514823 (1985-04-01), Mendeson et al.
patent: 4528626 (1985-07-01), Dann et al.
patent: 4530053 (1985-07-01), Kriz et al.
patent: 4975832 (1990-12-01), Saito et al.
patent: 5003465 (1991-03-01), Chisolm et al.

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