Here are the data structures with brief descriptions:
 port_config | Port pin configuration structure |
 StructCPtr | Structure of pointers to constant 64-, 32-, 16- and 8-bit unsigned integers |
 StructCVPtr | Structure of pointers to constant volatile 64-, 32-, 16- and 8-bit unsigned integers |
 StructPtr | Structure of pointers to 64-, 32-, 16- and 8-bit unsigned integers |
 StructVPtr | Structure of pointers to volatile 64-, 32-, 16- and 8-bit unsigned integers |
 system_pinmux_config | Port pin configuration structure |
 Union16 | 16-bit union |
 Union32 | 32-bit union |
 Union64 | 64-bit union |
 UnionCPtr | Union of pointers to constant 64-, 32-, 16- and 8-bit unsigned integers |
 UnionCVPtr | Union of pointers to constant volatile 64-, 32-, 16- and 8-bit unsigned integers |
 UnionPtr | Union of pointers to 64-, 32-, 16- and 8-bit unsigned integers |
 UnionVPtr | Union of pointers to volatile 64-, 32-, 16- and 8-bit unsigned integers |