Device interface controller for intercepting communication between a microcomputer and peripheral devices to control data transfers
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United States of America Patent
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Apr 11, 1989
Grant Date -
N/A
app pub date -
Feb 25, 1985
filing date -
Feb 25, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus for use with a DMA controller includes a device interface controller having therein both general and specific command programs, and device bus interface. The apparatus is arranged to intercept all communication signals between the DMA controller and a microcomputer associated therewith.
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