Unique ID Identification for TMS32C28020

The datasheet for the TMS320F28020 has the values which these registers will contain in Section 3.5.

The different part numbers enable different features in the Piccolo series, including package options in the PARTID register.

There is additional details on the DEVICECNF register in the TMS320x2802x/TMS320F2802xx Piccolo System Control and Interrupts Reference Guide found on the TMS320F28020 Product Folder.