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SPI DMA and master receive

Question asked by bookevg on Sep 28, 2011
Latest reply on Sep 4, 2012 by bookevg

ADSP-214xx SHARC Processor Hardware Reference explains (p.15-22):

"Therefore, SPICLK runs for an additional five word transfers filling junk data in the RXSPIx buffer and DMA FIFO."

If I must receive 5 five words that:

1) SPICLK runs for five my words and for an additional five word transfers

OR

2) SPICLK runs for five my words transfers because it fills data in the RXSPIx buffer and DMA FIFO when SPI receives my five words?

 

I developed the driver for SD-card using CORE SPI.

Now I want to develop the driver for SD-card using DMA SPI, but SPI of ADSP214xx don't adapt explicitly for SD-card

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