Here are the data structures with brief descriptions:
 genclk_config | Hardware representation of a set of generic clock parameters |
 gpio_map_t | A type definition of pins and modules connectivity |
 pll_config | Hardware-specific representation of PLL configuration |
 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 |
 tc_capture_opt_t | Parameters when initializing a timer/counter in capture mode |
 tc_interrupt_t | Timer/counter interrupts |
 tc_waveform_opt_t | Parameters when initializing a timer/counter in waveform mode |
 u_avr32_flashc_fcmd_t | |
 u_avr32_flashc_fcr_t | |
 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 |