Method of arbitrating between a plurality of transfers to be...

Details Method of arbitrating between a plurality of transfers to be... Method of arbitrating between a plurality of transfers to be...

2006-11-28

2006-11-28

Ray, Gopal C. (Department: 2111)

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus access regulation

C710S240000, C710S316000, C710S110000, C709S208000, C711S147000

Reexamination Certificate

active

07143221

ABSTRACT:
A method of arbitration within a data processing apparatus between a plurality of transfers to be routed over a corresponding plurality of paths provided by an interconnect circuit. The plurality of paths include a shared connection, the data processing apparatus having a plurality of initiator logic elements for initiating transfers and a plurality of recipient logic elements for receiving transfers, for each transfer the corresponding path coupling the initiator logic element responsible for initiating that transfer with the recipient logic element destined to receive that transfer. The method comprises the steps of providing to arbitration logic an indication as to whether the ready signal from a storage element has been asserted, and employing the arbitration logic to select, in dependence on predetermined criteria including at least that indication, one of the plurality of transfers for routing via the shared connection.

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“The ready-to-go virtual circuit protocol: a loss-free protocol for multigigabit networks using FIFO buffers” by Varvarigos et al. (abstract only) Publication date: Oct. 1997.

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