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Abstract

A method for a CPU interface to control a writing process that writes data sent from a CPU to a memory. The CPU interface controls the writing process through steps mainly including receiving a write request and data from a CPU, sending a dummy request to the memory control circuit of the memory circuit, and then writing the data to a memory of the memory circuit. After the CPU interface receives a write request from the CPU, the CPU interface sends a dummy request to the memory control circuit to pre-charge and activate the designative memory page of the memory circuit before the data is sent to the memory circuit. Since the designative memory page is always pre-charged and activated while the data is received at the memory control circuit, the memory control circuit sends only a write command to the memory for writing the data to the memory without further pre-charging and activating the designative memory page. Therefore, the total number of clock cycles required for processing a write request is shortened.

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First Claim