Input/output processor with a local memory providing shared resources for a plurality of input/output interfaces on an I/O bus
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United States of America Patent
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Feb 11, 1997
Grant Date -
N/A
app pub date -
Jun 6, 1995
filing date -
Jun 6, 1995
priority date (Note) -
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status (Latency Note)
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Abstract
Within a computing system, an input/output processor provides resources shared by several input/output interfaces. The computing system includes both a host bus and an input/output bus. One or more host processors are connected to the host bus. A bus bridge connects the input/output bus to the host bus. The bus bridge is used for transferring information between the host bus and the input/output bus. A first input/output interface provides an interface between a first external input/output system and the input/output bus. A second input/output interface provides an interface between a second external input/output system and the input/output bus. An input/output processor, also connected to the input/output bus, includes an embedded processor connected to a local memory. The input/output processor controls data transactions through the first input/output interface and controls data transactions through the second input/output interface. The local memory provides temporary storage for data transactions through the first input/output interface and for data transactions through the second input/output interface.
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