Here is a list of all documented struct and union fields with links to the struct/union documentation for each field:

### - i -

- I2CM : Sercom
- I2CS : Sercom
- I2S_ : MCLK_APBDMASK_Type , PAC_INTFLAGD_Type , PAC_STATUSD_Type
- IBON : SERCOM_SPI_CTRLA_Type , SERCOM_USART_CTRLA_Type
- ICACHE : Picop
- ICACHELRU : Picop
- ICDIS : CMCC_CFG_Type
- ICM_ : MCLK_AHBMASK_Type , MCLK_APBCMASK_Type , PAC_INTFLAGC_Type , PAC_STATUSC_Type
- ICSPACE : SERCOM_SPI_CTRLC_Type
- ID : CAN_RXBE_0_Type , CAN_RXF0E_0_Type , CAN_RXF1E_0_Type , CAN_TXBE_0_Type , CAN_TXEFE_0_Type , DMAC_ACTIVE_Type , DMAC_INTPEND_Type , EVSYS_INTPEND_Type , Picop , PICOP_ID_Type
- IDC : GCLK_GENCTRL_Type
- IDLE : GMAC_NSR_Type
- IDR : Gmac , Icm , Pcc
- IDX : TCC_STATUS_Type
- IDXCMD : TCC_CTRLBCLR_Type , TCC_CTRLBSET_Type
- IDXERR : PDEC_STATUS_Type
- IE : Can
- IER : Gmac , Icm , Pcc
- IGNACK : PM_PWSAKDLY_Type
- IHCE : Gmac
- IL0EX : PICOP_CMD_Type
- IL1EX : PICOP_CMD_Type
- IL2EX : PICOP_CMD_Type
- IL3EX : PICOP_CMD_Type
- IL4EX : PICOP_CMD_Type
- ILE : Can
- ILS : Can
- IMR : Gmac , Icm , Pcc
- IMULT : OSCCTRL_XOSCCTRL_Type
- IN : PORT_IN_Type , PortGroup
- IN0ACT : RTC_TAMPCTRL_Type
- IN1ACT : RTC_TAMPCTRL_Type
- IN2ACT : RTC_TAMPCTRL_Type
- IN3ACT : RTC_TAMPCTRL_Type
- IN4ACT : RTC_TAMPCTRL_Type
- INACK : SERCOM_USART_CTRLC_Type
- INACTOUT : SERCOM_I2CM_CTRLA_Type
- INCSTAT : GMAC_NCR_Type
- INDATA : Aes
- INDATAPTR : AES_DATABUFPTR_Type
- INDEX : CMCC_MAINT1_Type
- INEN : PORT_PINCFG_Type , PORT_WRCONFIG_Type
- INIT : CAN_CCCR_Type
- INPUTCTRL : Adc , ADC_DSEQCTRL_Type , ADC_DSEQSTAT_Type , ADC_SYNCBUSY_Type
- INSEL0 : CCL_LUTCTRL_Type
- INSEL1 : CCL_LUTCTRL_Type
- INSEL2 : CCL_LUTCTRL_Type
- INST : PICOP_OCDSTATUS_Type
- INSTR : QSPI_INSTRCTRL_Type
- INSTRADDR : Qspi
- INSTRCTRL : Qspi
- INSTREN : QSPI_INSTRFRAME_Type
- INSTREND : QSPI_INTENCLR_Type , QSPI_INTENSET_Type , QSPI_INTFLAG_Type
- INSTRFRAME : Qspi
- INTBG : SDHC_BGCR_Type
- INTCLKEN : SDHC_CCR_Type
- INTCLKS : SDHC_CCR_Type
- INTENCLR : Ac , Adc , Aes , Dac , Eic , Freqm , I2s , Mclk , Nvmctrl , Osc32kctrl , Oscctrl , Pac , Pdec , Pm , Qspi , Ramecc , RtcMode0 , RtcMode1 , RtcMode2 , SercomI2cm , SercomI2cs , SercomSpi , SercomUsart , Supc , Tcc , TcCount16 , TcCount32 , TcCount8 , Trng , UsbDevice , UsbHost , Wdt
- INTENSET : Ac , Adc , Aes , Dac , Eic , Freqm , I2s , Mclk , Nvmctrl , Osc32kctrl , Oscctrl , Pac , Pdec , Pm , Qspi , Ramecc , RtcMode0 , RtcMode1 , RtcMode2 , SercomI2cm , SercomI2cs , SercomSpi , SercomUsart , Supc , Tcc , TcCount16 , TcCount32 , TcCount8 , Trng , UsbDevice , UsbHost , Wdt
- INTFLAG : Ac , Adc , Aes , Dac , Eic , Freqm , I2s , Mclk , Nvmctrl , Osc32kctrl , Oscctrl , Pdec , Pm , Qspi , Ramecc , RtcMode0 , RtcMode1 , RtcMode2 , SercomI2cm , SercomI2cs , SercomSpi , SercomUsart , Supc , Tcc , TcCount16 , TcCount32 , TcCount8 , Trng , UsbDevice , UsbHost , Wdt
- INTFLAGA : Pac
- INTFLAGAHB : Pac
- INTFLAGB : Pac
- INTFLAGC : Pac
- INTFLAGD : Pac
- INTPEND : Dmac , Evsys
- INTSEL : AC_COMPCTRL_Type
- INTSSL : SDHC_SISR_Type
- INTSTATUS : Dmac , Evsys
- INTVECTV : Aes
- INVALL : CMCC_MAINT0_Type
- INVEI : AC_EVCTRL_Type , CCL_LUTCTRL_Type , DAC_EVCTRL_Type
- INVEI0 : AC_EVCTRL_Type , DAC_EVCTRL_Type
- INVEI1 : AC_EVCTRL_Type , DAC_EVCTRL_Type
- INVEN : TC_DRVCTRL_Type , TCC_DRVCTRL_Type
- INVEN0 : TC_DRVCTRL_Type , TCC_DRVCTRL_Type
- INVEN1 : TC_DRVCTRL_Type , TCC_DRVCTRL_Type
- INVEN2 : TCC_DRVCTRL_Type
- INVEN3 : TCC_DRVCTRL_Type
- INVEN4 : TCC_DRVCTRL_Type
- INVEN5 : TCC_DRVCTRL_Type
- INVEN6 : TCC_DRVCTRL_Type
- INVEN7 : TCC_DRVCTRL_Type
- IODIS : PICOP_MMUCTRL_Type
- IORET : PM_CTRLA_Type
- IP : GMAC_WOL_Type
- IPGS : Gmac
- IPGSEN : GMAC_NCFGR_Type
- IPTAT : OSCCTRL_XOSCCTRL_Type
- IR : Can
- IRQENCLR : PICOP_HFCTRL_Type
- IRQENSET : PICOP_HFCTRL_Type
- IRXER : GMAC_NCFGR_Type
- IRXFCS : GMAC_NCFGR_Type
- ISA : PICOP_CONFIG_Type
- ISF : SERCOM_USART_STATUS_Type
- ISIZE : PCC_MR_Type
- ISR : Gmac , Icm , Pcc
- ITDT : GMAC_TA_Type
- ITER : SERCOM_USART_STATUS_Type