Input/output processor with a local memory providing shared reso

Details Input/output processor with a local memory providing shared reso Input/output processor with a local memory providing shared reso

1995-06-06

1997-02-11

Lee, Thomas C.

395474, G06F 1300

Patent

active

056030517

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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Fong, A. S., A Heterogeneous Multiprocessing Computer System with Shared Memory, IEEE, pp. 225-228 1993.
IEEE Standard for Communicating Among Processors and Peripherals using Shared Memory (DMA), IEEE, abstract Jan. 31, 1994.

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