Method for pre-emptive arbitration

Details Method for pre-emptive arbitration Method for pre-emptive arbitration

2006-02-28

2006-02-28

Vo, Tim (Department: 2111)

Electrical computers and digital data processing systems: input/

Access arbitrating

C710S108000, C710S112000, C710S113000, C710S309000, C710S241000, C710S242000, C710S244000

Reexamination Certificate

active

07007122

ABSTRACT:
An interface system capable of providing pre-emptive arbitration among multiple agents comprises an interface including at least a first agent and a second agent which share the interface for transferring data, the second agent having priority over the first agent for access to the interface. A pre-emptive arbiter provides arbitration between the first agent and the second agent when at least one of a first transfer request signal is asserted by the first agent for requesting access to the interface by the first agent and a second transfer request signal is asserted by the second agent for requesting access to the interface by the second agent. The pre-emptive arbiter is capable of synthesizing a transfer completion signal on the interface for preempting access of the first agent to the interface so that access may be granted to the second agent.

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