High speed multiple ported bus interface port state identification system
First Claim
1. A monitor for a dual ported bus interface comprising:
- a controller coupled to the dual ported bus interface, the dual ported bus interface having first and second front end ports capable of connecting to host bus adapters, first and second backplane connectors for coupling to one or more buses on the backplane, and interconnections for coupling signals from the first and second front end ports through to the backplane buses; and
a programmable code executable on the controller and further comprising;
a programmable code that monitors term power, a differential sense signal, and connectivity states for the first and second front end ports; and
a programmable code that identifies port state based on the monitored term power, a differential sense signal, and connectivity states.
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Abstract
A monitor for a dual ported bus interface comprises a controller coupled to the dual ported bus interface and a programmable code executable on the controller. The dual ported bus interface has first and second front end ports capable of connecting to host bus adapters, and first and second backplane connectors for coupling to one or more buses on the backplane. The dual ported bus interface also has interconnections for coupling signals from the first and second front end ports through to the backplane buses. The programmable code further comprises a programmable code that monitors term power, a differential sense signal, and connectivity states for the first and second front end ports, and a programmable code that identifies port state based on the monitored term power, a differential sense signal, and connectivity states.
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Citations
27 Claims
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1. A monitor for a dual ported bus interface comprising:
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a controller coupled to the dual ported bus interface, the dual ported bus interface having first and second front end ports capable of connecting to host bus adapters, first and second backplane connectors for coupling to one or more buses on the backplane, and interconnections for coupling signals from the first and second front end ports through to the backplane buses; and
a programmable code executable on the controller and further comprising;
a programmable code that monitors term power, a differential sense signal, and connectivity states for the first and second front end ports; and
a programmable code that identifies port state based on the monitored term power, a differential sense signal, and connectivity states. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A dual ported bus interface comprising:
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first and second front end ports capable of connecting to host bus adapters;
first and second backplane connectors for coupling to one or more buses on the backplane;
interconnections including a bridge connection for coupling signals from the first and second front end ports through to the backplane buses;
a monitor that monitors term power, a differential sense signal, and connectivity states for the first and second front end ports; and
a controller that identifies port state based on the monitored term power, a differential sense signal, and connectivity states. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A method of identifying port state for a dual ported bus interface comprising:
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connecting to first and second front end ports of the dual ported bus interface;
monitoring term power, a differential sense signal, and connectivity states for the first and second front end ports; and
identifying port state based on the monitored term power, a differential sense signal, and connectivity states. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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27. A dual ported bus interface comprising:
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means for connecting to host bus adapters;
means coupled to the connecting means for coupling to one or more buses on the backplane;
means for interconnecting signals from the first and second front end ports through to the backplane buses, the signal interconnecting means further comprising means for bridging between the first and second isolator/expanders;
means for monitoring term power, a differential sense signal, and connectivity states for the first and second front end ports; and
means for identifying port state based on the monitored term power, a differential sense signal, and connectivity states.
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Specification