SDIO: Secure Digital Input/Output interface SDIO_CK = SDIOCLK / [CLKDIV + 2]. The output clock frequency can vary between 187 KHz and 24 MHz. It is advised to keep the default ClockDiv value (0) to have a maximum SDIO_CK frequency of 24 MHz. SD_Init SD_Init SD_WideBus_Config MMC_Init MMC_Init MMC_WideBus_Config MMC_Init MMC_WideBus_Config $IpInstance_SD_Card $IpInstance_Bus1Bit $IpInstance_SD_Card $IpInstance_Bus4Bits $IpInstance_Bus1Bit $IpInstance_Bus4Bits $IpInstance_Bus8Bits SDIOUsed_ForRCC $IpInstanceUsed_ForRCC