MULTI-CHANNEL DIRECT MEMORY ACCESS CONTROLLER AND CONTROL METHOD THEREOF
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United States of America Patent
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Issued Date -
Oct 30, 2014
app pub date -
Apr 23, 2014
filing date -
Apr 26, 2013
priority date (Note) -
Abandoned
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Abstract
Disclosed herein is a multi-channel direct memory access (DMA) controller. The DMA controller includes: a register which stores control information and an operation state of each of a plurality of direct memory access (DMA) channels; a transmission processor which controls flow of transmission and reception of data such that all of the DMA channels requesting DMA transmission cyclically repeat unit transmission with reference to the register; and a transmission sequence control unit which controls the transmission processor such that the transmission sequence of each of the DMA channels is determined in a circulation cycle of unit transmission by reflecting priority information of the respective DMA channels stored in the register.
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