Invention Grant
- Patent Title: Memory read/write arbitration method
- Patent Title (中): 存储器读/写仲裁方法
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Application No.: US10236955Application Date: 2002-09-09
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Publication No.: US06667926B1Publication Date: 2003-12-23
- Inventor: Yi-Hung Chen , Ming-Hsien Lee , Chia-Hsien Chou , Tsan-Hwi Chen , Te-Lin Ping
- Applicant: Yi-Hung Chen , Ming-Hsien Lee , Chia-Hsien Chou , Tsan-Hwi Chen , Te-Lin Ping
- Main IPC: G11C700
- IPC: G11C700

Abstract:
A memory read/write arbitration method is disclosed. The memory read/write arbitration method, which is utilized in a memory controller for increasing row hit rate and decreasing the delay of memory access, comprises: providing a arbitrator; providing a read request fifo queue having command read requests; providing a write request fifo queue having command write requests; performing a judgment step for generating a priority, wherein the judgment step comprises: performing a first sub-judgment step to determine that a command read request of the command read requests has priority over a command write request of the command write requests, or the command write request can be forwarded to a second sub-judgment step under adaptive first-step conditions; performing the second sub-judgment step to determine the read request has priority over the command write request from the first sub-judgment step, or the command write request from the first sub-judgment has priority over the command read request. Therefore, by the memory read/write arbitration method of the present invention, the row hit rate and the bandwidth utilization of memory module are increased through the applied judgment step.
Information query