Communication via a memory interface
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United States of America Patent
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Aug 4, 2015
Grant Date -
Mar 20, 2014
app pub date -
Oct 27, 2013
filing date -
Aug 24, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A memory space of a module connected to a memory controller via a memory interface may be used as a command buffer. Commands received by the module via the command buffer are executed by the module. The memory controller may write to the command buffer out-of-order. The memory controller may delay or eliminate writes to the command buffer. Tags associated with commands are used to specify the order commands are executed. A status buffer in the memory space of the module is used to communicate whether commands have been received or executed. Information received via the status buffer can be used as a basis for a determination to re-send commands to the command buffer.
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