Invention Grant
- Patent Title: Arbitration in crossbar interconnect for low latency
- Patent Title (中): 交叉开关中的仲裁用于低延迟
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Application No.: US12684287Application Date: 2010-01-08
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Publication No.: US08370551B2Publication Date: 2013-02-05
- Inventor: Martin Ohmacht , Krishnan Sugavanam
- Applicant: Martin Ohmacht , Krishnan Sugavanam
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Scully, Scott, Murphy & Presser, P.C.
- Agent Daniel P. Morris, Esq.
- Main IPC: G06F13/00
- IPC: G06F13/00 ; G06F13/36 ; G06F13/368

Abstract:
A system and method and computer program product for reducing the latency of signals communicated through a crossbar switch, the method including using at slave arbitration logic devices associated with Slave devices for which access is requested from one or more Master devices, two or more priority vector signals cycled among their use every clock cycle for selecting one of the requesting Master devices and updates the respective priority vector signal used every clock cycle. Similarly, each Master for which access is requested from one or more Slave devices, can have two or more priority vectors and can cycle among their use every clock cycle to further reduce latency and increase throughput performance via the crossbar.
Public/Granted literature
- US20110173357A1 ARBITRATION IN CROSSBAR INTERCONNECT FOR LOW LATENCY Public/Granted day:2011-07-14
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