Invention Grant
- Patent Title: Hardware first come first serve arbiter using multiple request buckets
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Application No.: US14074469Application Date: 2013-11-07
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Publication No.: US09727499B2Publication Date: 2017-08-08
- Inventor: Gavin J. Stark
- Applicant: Netronome Systems, Inc.
- Applicant Address: US CA Santa Clara
- Assignee: Netronome Systems, Inc.
- Current Assignee: Netronome Systems, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Imperium Patent Works LLP
- Agent T. Lester Wallace; Mark D. Marrello
- Main IPC: G06F13/16
- IPC: G06F13/16 ; G06F13/362 ; G06F13/364

Abstract:
A First Come First Server (FCFS) arbiter that receives a request to utilize a shared resource from a plurality of devices and in response generates a grant value indicating if the request is granted. The FCFS arbiter includes a circuit and a storage device. The circuit receives a first request and a grant enable during a first clock cycle and outputs a grant value. The grant enable is received from a shared resource. The grant value communicated to the source of the first request. The storage device includes a plurality of request buckets. The first request is stored in a first request bucket when the first request is not granted during the first clock cycle and is moved from the first request bucket to a second request bucket when the first request is not granted during a second clock cycle. A granted request is cleared from all request buckets.
Public/Granted literature
- US20150127864A1 HARDWARE FIRST COME FIRST SERVE ARBITER USING MULTIPLE REQUEST BUCKETS Public/Granted day:2015-05-07
Information query