Question: I am writing software for the 'C52. Could you please confirm that the 'C52 has the same interrupt bits for the serial port as described in the TMS320C5x User's Guide (registers SPC, IMR, IFR)? If there are differences, what are they?

Answer: Yes. The interrupt bits for the serial port on the C52 are as described in the C5x User's Guide. You may want to request the C52 datasheet that lists the general differences.