Bridge circuit for interfacing processor to main memory and...

Electrical computers and digital data processing systems: input/ – Intrasystem connection – Bus interface architecture

Reexamination Certificate

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Reexamination Certificate

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07870323

ABSTRACT:
A bridge circuit includes a bus, a memory interface module, a memory control module, and an external storage control module. The memory interface module receives a memory address from a processor via a memory interface and outputs the memory address to the bus. The memory address corresponds to one of a plurality of address regions of an address space of the processor. The memory control module receives the memory address via the bus and communicates with a memory when the memory address corresponds to a first one of the plurality of address regions. The external storage control module receives the memory address via the bus and communicates with an external storage device when the memory address corresponds to a second one of the plurality of address regions.

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