TMS320F280049C: is there any device : main frequency 120Mhz , inside InstaSPIN code .? TMS320F2807X?

Andrew,

In terms of absolute CPU MHZ, the F280049C at 100MHz is the highest speed device with InstaSPIN.  Can you give some more information on what the application is trying to do and we can better understand if the 100MHz is enough.  Compared to F2806x 90MHz device, there are several enhancements on the F28004x device such as flash wrapper/CLA background task, etc that should help.

Best,
Matthew