Bus segment decoder
AssigneeIntel Corporation
InventorRichard P. Mackey
Life of this patent
Estimating the term…
Abstract
Disclosed are a system and method of forwarding bus transactions from a source device to a target device in multiple data bus enviroment. A bridge is coupled between a first data bus and a second data bus while a target device is coupled to the first data bus at a data bus address. A decoder may provide bus segment information to the bridge independently of a bus transaction on the second data bus initiated by a source device. The bridge may comprise logic to forward the bus transaction on the first data bus to the target device based upon the bus segment information.
Claims18
A system comprising:
- a bridge coupled between a first data bus and a second data bus;
- a target device coupled to the first data bus at a data bus address;
- a decoder to provide bus segment information to the bridge independently of response to a bus transaction on the second data bus initiated by a source device,
- wherein the bridge comprises logic to forward the bus transaction on the first data bus to the target device based upon the bus segment information.
A method comprising:
- initiating a bus transaction to a target device coupled to a first data bus at a data bus address from a source device coupled to a second data bus, the first and second data busses being coupled to a bridge;
- providing bus segment information to the bridge in response to the bus transaction independently of the second data bus;
- and
- forwarding the bus transaction to the target device on the first data bus based upon the bus segment information.
An apparatus comprising:
- means for initiating a bus transaction to a target device coupled to a first data bus at a data bus address from a source device coupled to a second data bus, the first and second data busses being coupled to a bridge;
- means for providing bus segment information to the bridge in response to the bus transaction independently of the second data bus;
- and
- means for forwarding the bus transaction to the target device on the first data bus based upon the bus segment information.
Dependencies are inferred from the claim text.