Invention Grant
- Patent Title: Method and system for arbitrating data transmissions
- Patent Title (中): 用于仲裁数据传输的方法和系统
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Application No.: US10905391Application Date: 2004-12-30
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Publication No.: US08270322B1Publication Date: 2012-09-18
- Inventor: Almir Davis , Jeffrey S. Kinne , Christopher S. MacLellan , Stephen L. Scaringella
- Applicant: Almir Davis , Jeffrey S. Kinne , Christopher S. MacLellan , Stephen L. Scaringella
- Applicant Address: US MA Hopkinton
- Assignee: EMC Corporation
- Current Assignee: EMC Corporation
- Current Assignee Address: US MA Hopkinton
- Agent Krishnendu Gupta; Deepika Bhayana
- Main IPC: H04J1/16
- IPC: H04J1/16

Abstract:
A system for arbitrating a transmission of data includes a number K of transmitters, a request signal transmission device, a device valid signal transmission device, and a data valid logic device, wherein a transmitter asserts a request signal to request permission to begin a data transmission and transmits transmission-identifying information to a receiver. The data valid logic device deasserts a data valid signal based on the state of a wait signal, thereby preventing a transmission of data from each of the K transmitters at one clock cycle after a clock cycle at which the data signal is deasserted. An arbitration logic device of the receiver selects one of the number K of transmitters to grant permission to transmit data to the receiver and outputs an arbitration signal to a wait logic device instructing the wait logic device to deassert the wait signal of the selected trnasmitter.
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