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US 7,675,871 B2Granted
Split transaction protocol for a bus system
AssigneeIntel Corporation
InventorsJohn I. Garney, John S. Howard
Life of this patent
Estimating the term…
Abstract
A method of and apparatus for communicating between a host and an agent. The method includes the step of performing a first transaction between a host controller and a hub. The hub is operable to perform a single transaction with an agent based on the first transaction. The method then includes the step of performing a second transaction between the host controller and the hub. The second transaction is based on the single transaction.
Claims15
A system comprising:
- a host controller to be coupled to a hub and a first agent, said host controller to perform a split transaction to transfer data between the host controller and the first agent;
- and
- a device driver to operate the host controller to perform a first transaction of the split transaction and a second transaction of the split transaction between the host controller and the hub, said second transaction being different than said first transaction;
- wherein the host controller is to perform a third transaction with another agent while an agent transaction with the first agent is being performed by the hub.
1 more element
A device comprising:
- a hub controller to be coupled to a host controller and to an agent, said hub controller to perform a split transaction with the host controller to effect a transfer of data between the host controller and the agent;
- wherein the hub controller is to perform a first transaction of the split transaction and a second transaction of the split transaction with the host controller, said second transaction being different than said first transaction;
- wherein the hub controller is to perform an agent transaction with the agent based on the first transaction;
- wherein the second transaction is based on the agent transaction.
1 more element
Dependencies are inferred from the claim text.