Here are the data structures with brief descriptions:
  gpio_map_t | A type definition of pins and modules connectivity |
| scif_dfll_closedloop_conf_t | DFLL closed-loop mode settings |
| scif_dfll_openloop_conf_t | DFLL open-loop mode settings |
| scif_dfll_ssg_conf_t | DFLL SSG settings |
| scif_gclk_opt_t | Generic clock generation settings |
| scif_osc32_opt_t | OSC32 startup options |
| scif_osc_opt_t | OSC0/OSC1 startup options |
| 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 |
| tLED_DESCRIPTOR | Structure describing LED hardware connections |
| u_avr32_flashcdw_fcmd_t | |
| u_avr32_flashcdw_fcr_t | |
| u_avr32_pm_cfdctrl_t | |
| u_avr32_pm_cpusel_t | |
| u_avr32_pm_pbasel_t | |
| u_avr32_pm_pbbsel_t | |
| u_avr32_scif_dfll0conf_t | |
| u_avr32_scif_dfll0ssg_t | |
| u_avr32_scif_oscctrl0_t | |
| u_avr32_scif_oscctrl32_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 |
| usart_iso7816_options_t | Input parameters when initializing ISO7816 mode |
 usart_options_t | Input parameters when initializing RS232 and similar modes |
1.8.5