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Computer system having a plurality of bus agents coupled to bus requesters wherein each bus agent includes an internal arbiter that selects one of the bus requests
Computer system having a plurality of bus agents coupled to bus requesters wherein each bus agent includes an internal arbiter that selects one of the bus requests
A computer system, method, and controller bus agent for control access to a computer bus. The computer system includes a parallel architecture in which plural bus agents are directly coupled to the computer bus. Each bus agent includes plural bus requester ports each coupled to a different bus requester. As such, the computer system employs a relatively flat, parallel architecture that handles bus requests from the bus requesters in parallel. The controller bus agent includes an internal arbiter and an external arbiter. The internal arbiter arbitrates between bus requests received from the plural bus requesters coupled to the controller bus agent. The external arbiter arbitrates between the bus requests received from other bus agents and from the internal arbiter.
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