Accessing ADC directly from TMS320C6748 in an OMAPL138 processor

Hi Experts,

There is a real-time requirement for our application (digital Stethoscope) .  From what i've seen, the TMS320C6748 can be connected to a ADC. My question is - can incoming analog data be directly accessed by the TMS320C6748 by bypassing the ARM processor. Since there is a real time constraint  we would like the TMS320C6748 to directly have access to the ADC and process the signals before it transfers control to the ARM processor for control operations or should the ARM processor always function as Master over the TMS320C6748? 

Thanks a lot

Smita