Hi, HR
Of course the RBFIFO was disabled when from DRR.
The note on page1085 is about MAX frame frequency (Is it is?). In my application, frame frequency is 60KHZ, that is about 16us per element (The element size is 32bits). And the bit clock is 3Mhz. So I don't think it is critical for EDMA to service the MCBPS RX.
Thanks