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US 6,636,912 B2Granted
Method and apparatus for mode selection in a computer system
AssigneeIntel Corporation
InventorsJasmin Ajanovic, David J. Harriman, David I. Poisner
Life of this patent
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Abstract
According to one embodiment, a computer comprises a central processing unit (CPU), a first hub agent, a first hub interface coupled to the first hub agent, and a second hub agent coupled to the first hub interface. The first and second hub agents operate at a first data clocking rate determined by exchanging data clocking rate capabilities.
Claims22
A computer system comprising:
- a first hub agent;
- a first interface, coupled to the first hub agent, that comprises:
- a data signal path to transmit data in packets via split transactions;
- and
- a set of command signals, the first interface providing a point-to-point connection exclusive of an external bus connected directly to the first interface;
- and
- a second hub agent coupled to the first interface, that exchanges data clocking rate capabilities with the first hub agent via the first interface to establish a first data clocking rate.
4 more elements
A computer system comprising:
- a memory controller hub (MCH);
- and
- a first interface coupled to the MCH to transfer data directly between the MCH and a first hub agent within the computer system, the first interface comprising:
- a data signal path to transmit data in packets via split transactions;
- and
- a set of command signals, the first interface providing a point-to-point connection between the MCH and the first hub agent, exclusive of an external bus connected directly to the first interface;
- the MCH operable to exchange data clocking rate capabilities with the first hub agent via the first interface to establish a first data clocking rate.
4 more elements
A hub agent comprising an interface controller that coupled to an interface to exchange data clocking rate capabilities with a device coupled to the interface, the interface comprising:
- a data signal path to transmit data in packets via split transactions;
- and
- a set of command signals, the interface providing a point-to-point connection between the first hub agent and the device, exclusive of an external bus connected directly to the interface.
Dependencies are inferred from the claim text.