Memory controller with virtual controller mode
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United States of America Patent
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app pub date -
Aug 31, 2016
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Jul 15, 2016
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Abstract
In one form, a memory controller has a memory channel controller including a command queue and an arbiter. The command queue stores memory access requests including a sub-channel number in a virtual controller mode. The arbiter is coupled to the command queue to select memory access commands from the command queue according to predetermined criteria. In the virtual controller mode, the arbiter selects from among the memory access requests in each sub-channel independently using the predetermined criteria, and sends selected memory access requests to a corresponding one of a plurality of sub-channels. In another form, a data processing system includes a plurality of memory channels and such a memory controller coupled to the plurality of sub-channels.
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