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AssigneeWestinghouse Electric Corp.
InventorsLarry D. Aschliman, Randy J. Kelsey
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A method and device for adapting a VME card for use in a VXI system are disclosed. The device resides on a circuit board that is plugged between the VXI bus and the VME card. The device provides two or more sets of VXI configuration registers. Each region of addresses normally used by the VME card is assigned to one of the simulated VXI units, and the device modifies incoming VXI addresses directed to each region so that the VME card responds to the VXI address. The VXI units simulated by the device may include one message-based device and one register-based device, so that both capabilities are available to the VME card. The device buffers signals passing between the VME card and the VXI bus, generating delays and timing signals to produce proper operation of all system components. The device provides bidirectional communication between the VME card and the VXI bus, so that the VME card can be the VXI bus master. The registers of the device can be configured manually by the user or dynamically by the VXI resource manager, permitting full operational conformance with the VXI specification. VME user-defined signals generated by the card are available on an auxiliary connector but are not passed through to the VXI bus.
A device for adapting a card conforming to the VME interface standard for use in a system with a bus conforming to the VXI interface standard, where the VXI interface standard requires that each addressable unit provides a number of special purpose registers in an address region, the device comprising a configuration register means responding to addresses in the address region and providing special purpose registers representing a plurality of addressable units, the device being operatively connected to the VME interface standard and the VXI interface standard.
A device for adapting a card conforming to the VME interface standard for use in a system with a bus conforming to the VXI interface standard which is related to the VME interface standard, such that the use of certain incompatible address locations which the card responds to in accordance with the VME interface standard is prohibited according to the VXI interface standard, comprising:
A device for adapting a card conforming to a VME interface standard for use in a system conforming to a VXI interface standard which is related to the VME interface standard, the standards being such that the use of certain incompatible address locations which the card responds to in accordance with the VME interface standard is prohibited according to the VXI interface standard requires that each unit in a system conforming to the VXI interface standard provide special purpose registers residing in the incompatible address space, comprising:
A device for adapting a card conforming to a VME interface standard for use in a system conforming to a VXI interface standard which is related to the VME interface standard, the standards being such that the use of certain incompatible address locations which the card responds to in accordance to the VXI interface standard, and where the VXI interface standard requires that each unit in a system conforming to the VXI interface standard provide special purpose registers residing in the incompatible address space, comprising:
A device for adapting a card conforming to a VME interface standard for use in a system with a bus conforming to a VXI interface standard which is related to the VME interface standard, where the VXI interface standard requires that each unit in a system conforming the VXI interface standard provide special purpose registers in an address region, comprising:
Dependencies are inferred from the claim text.