Systems and methods for DMA controller for checking the status of metadata prior to or simultaneously when transferring data to host
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United States of America Patent
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Oct 20, 2015
Grant Date -
Jun 5, 2014
app pub date -
Dec 3, 2013
filing date -
Dec 3, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A memory controller is provided which includes a host interface configured to provide an interface for communication with a host; a buffer memory configured to store user data and metadata of the user data; and a DMA controller configured to access the buffer memory to check the metadata and to provide user data corresponding to a logical block address requested from a host to the host interface according to the checking result. The metadata includes status information of the user data stored at the buffer memory. Before providing the host interface with user data corresponding to a first logical block address requested from the host, the DMA controller checks metadata of user data corresponding to a second logical block address requested from the host.
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