Can the TI '5509A DMA be used to take 16-bit data from a MCBSP port
(from a audio ADC, using I2S framing) and dump this into RAM buffer like
where left[n] is the nth 16-bit (left) sample from the McBSP.
I think I can do it using the "single index" mode with an appropriate
index programmed into the index register (since the source will be set
to "no increment", I think I can run the '5509A's DMA in the
"Compatibility" mode, where the src and dest indexes are common).
Am I right in thinking this will work?