Section 4.7.2 of the datasheet recommends adding "large" tantalum or ceramic caps for DSP power and I/O power pins.
This is the same recommendation from the older commercial device.
Please provide a recommended max ESR for the combined "larger" capacitors. Space-rated tantalum capacitors might have ESR near 2 ohms and there is concern that this will be too high since the previous non space design certainly did not consider the higher ESR found in space rated tantalum capacitors.