DMA 32 bit Datasize behaviour

Hi,

I am using the DMA of my TMS320F28335 to transfer the ADC results toRAM (XINTF7).

I have configured the datasize of the DMA to 32 bit. 

In order to transfer 16 results ( each 16 bit ), I would think that I would have to set the burst size to 8 (8*32 bit = 16*16 bit).

Unfortunately this seems to be incorrect; it seems that I have to set the burst size to 16 (as for a datasize of 16 bit).

I've searched the whole DMA reference manual for a hint on how to setup the burst size correctly but I did not find anything.

Can anyone point out to me, why the DMA behaves as it does? Or did I misconfigure something?

Thanks!