Invention Grant
- Patent Title: Arbitration method for programmable multiple clock domain bi-directional interface
- Patent Title (中): 可编程多时钟域双向接口的仲裁方法
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Application No.: US12044862Application Date: 2008-03-07
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Publication No.: US08589632B1Publication Date: 2013-11-19
- Inventor: Sumeet Gupta , Hamid Khodabandehlou , Pradeep Bajpai , Syed Babar Raza
- Applicant: Sumeet Gupta , Hamid Khodabandehlou , Pradeep Bajpai , Syed Babar Raza
- Applicant Address: US CA San Jose
- Assignee: Cypress Semiconductor Corporation
- Current Assignee: Cypress Semiconductor Corporation
- Current Assignee Address: US CA San Jose
- Main IPC: G06F12/00
- IPC: G06F12/00

Abstract:
An embodiment of the present invention is directed to a system including a memory interface logic unit for receiving memory access requests and corresponding information, a processor coupled to the memory interface logic, a plurality of pre-fetch buffers for handling memory accesses coupled to the memory interface logic unit, an arbiter logic unit for pre-fetching data into the plurality of pre-fetch buffers, a memory device for storing data coupled to the arbiter logic unit and the plurality of pre-fetch buffers, and busy detection logic for informing the arbiter logic unit of the current operation of the processor. The arbiter logic unit facilitates memory access via pre-fetch buffers of the processor and the memory in different or independent clock domains. The arbiter logic further allows random access without introducing additional latency.
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