System having microprocessor local memory expansion capability through removable coupling of local memory expansion boards directly to the high speed microprocessor local bus
First Claim
1. A computer system comprising:
- a microprocessor;
a high speed microprocessor local bus directly coupled to said microprocessor;
a system bus;
a bus controller coupled to and providing communication between said local bus and said system bus; and
a local bus memory facility directly coupled to and which can be physically separated from said local bus, said facility comprising;
a substrate for mounting and providing coupling connections among components mounted thereon;
at least one volatile memory component mounted on said substrate; and
a memory controller mounted on said substrate and coupled to said at least one volatile memory component and said local bus and said bus controller, said memory controller being operatively interposed between said at least one volatile memory component and said local bus and regulating communications between said volatile memory component and said microprocessor.
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Accused Products
Abstract
This invention relates to a personal computer having facility for ready variation in the amount of memory capability available on the microprocessor local bus. The personal computer has a microprocessor, a high speed local bus coupled to said microprocessor, a system bus, a bus controller coupled to and providing communication between the local bus and system bus, and a local bus memory facility coupled to and physically separable from the local bus. The local bus memory facility is provided by a substrate, preferably a printed circuit card, for mounting and providing coupling connections among components mounted thereon, at least one volatile memory component mounted on the card, and a memory controller mounted on the card and coupled to the volatile memory component, local bus and bus controller, with the memory controller regulating communications between the volatile memory component and microprocessor.
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Citations
12 Claims
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1. A computer system comprising:
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a microprocessor; a high speed microprocessor local bus directly coupled to said microprocessor; a system bus; a bus controller coupled to and providing communication between said local bus and said system bus; and a local bus memory facility directly coupled to and which can be physically separated from said local bus, said facility comprising; a substrate for mounting and providing coupling connections among components mounted thereon; at least one volatile memory component mounted on said substrate; and a memory controller mounted on said substrate and coupled to said at least one volatile memory component and said local bus and said bus controller, said memory controller being operatively interposed between said at least one volatile memory component and said local bus and regulating communications between said volatile memory component and said microprocessor. - View Dependent Claims (2, 3, 4, 5, 11, 12)
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6. A personal computer system comprising:
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a microprocessor; a high speed microprocessor local bus directly coupled to said microprocessor; a system bus; a bus controller coupled to and providing communication between said local bus and said system bus; and a local bus memory facility directly coupled to and which can be physically separated from said local bus, said facility comprising; a plurality of substrates each said substrate for mounting and providing coupling connections among components mounted thereon, each said substrate having; at least one volatile memory component mounted thereon; and a memory controller mounted thereon and coupled to said at least one volatile memory component and said local bus and said bus controller, said memory controller being operatively interposed between said at least one volatile memory component and said local bus and regulating communications between said at least one volatile memory component and said microprocessor. - View Dependent Claims (8, 9, 10)
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7. A personal computer system comprising:
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a microprocessor; a high speed microprocessor local bus directly coupled to said microprocessor; a system bus; a bus controller coupled to and providing communication between said local bus and said system bus; and a local bus memory facility directly coupled to and which can be physically separated from said local bus, said facility comprising; a plurality of substrates each said substrate for mounting operating components and providing coupling connections among components mounted thereon, wherein each said substrate can be physically separated from said local bus and having; at least one volatile memory component mounted thereon and which can be physically separated therefrom; and a memory controller mounted thereon and coupled to said at least one volatile memory component and said local bus and said bus controller, said memory controller being operatively interposed between said at least one volatile memory component and said local bus and regulating communications between said at least one volatile memory component and said microprocessor.
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Specification