Select state detection and signal generation
AssigneeInternational Business Machines Corporation
InventorsMark L. DeMarie, Robert B. Schlak, David Fratzke
Life of this patent
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Abstract
A device to detect a select state and initiate a function based on detecting the select state. The device receives a signal sent over a bus to be used to communicate between one component of one unit and another component of another unit. The bus is defined based on a selected protocol, and the device is configured to communicate with the other component of the other unit. A determination is made as to whether the signal represents a select state, the select state being an unintended state of the bus. Based on determining that the signal represents the select state, a function is initiated.
Claims20
A state detector comprising:
- one or more circuits to detect a select state forced by one component of one unit and to initiate a function for another component of another unit based on detecting the select state, wherein the state detector is configured to:
- receive a signal sent over a bus to be used to communicate between the one component of the one unit and the other component of the other unit, the bus being defined based on a selected protocol, and the state detector being configured to communicate with the other component of the other unit;
- determine whether the signal represents the select state, the select state being an unintended state of the selected protocol of the bus, in which the select state is not reachable by the one component that forced the select state, based on the one component being configured to the selected protocol of the bus, but is reachable by the one component, based on an intentional change associated with the one component to force the select state;
- and
- initiate the function based on determining that the signal represents the select state.
A method of initiating a function, the method comprising:
- detecting a select state forced by one component of one unit and initiating a function for another component of another unit based on detecting the select state, comprising:
- receiving by a state detector a signal sent over a bus to be used to communicate between the one component of the one unit and the other component of the other unit, the bus being defined based on a selected protocol, and the state detector being configured to communicate with the other component of the other unit;
- determining whether the signal represents the select state, the select state being an unintended state of the selected protocol of the bus, in which the select state is not reachable by the one component that forced the select state, based on the one component being configured to the selected protocol of the bus, but is reachable by the one component, based on an intentional change associated with the one component to force the select state;
- and
- initiating the function based on determining that the signal represents the select state.
Dependencies are inferred from the claim text.