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SPORT Ping-Pong Data buffer

Question asked by tanjack on Aug 18, 2015
Latest reply on Aug 23, 2015 by tanjack


In the example of  AD1939 C Block-based talkthrough on ADSP-21479,i don't understand what the SPORT ping-pong data buffer means.How does the SPORT receive or transmit data?Is there some documents that i can find to learn about the Ping-pong DMA /chain DMA(except ADSP-214xx SHARC Processor Hardware Reference).