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SD Exported Constants

group SD_Exported_Constants

Enums

enum T_SDIO_PIN_GROUP

Values:

enumerator GROUP_0: Select the SD pin group0.

enumerator GROUP_1: Select the SD pin group1.

enumerator GROUP_MAX: SD pin group selection need less than the max value.

enum T_SD_IF_TYPE

Values:

enumerator SD_IF_NONE: No card is selected.

enumerator SD_IF_SD_CARD: SD card is selected.

enumerator SD_IF_MMC: MMC card is selected.

enumerator SD_IF_SDIO_CARD: SDIO card is selected.

enum T_SD_BUS_WIDTH

Values:

enumerator SD_BUS_WIDTH_1B: SD bus width is 1bit mode.

enumerator SD_BUS_WIDTH_4B: SD bus width is 4bit mode.

enumerator SD_BUS_WIDTH_MAX: SD bus width selection need less than the max value.

enum T_SD_BUS_CLK_FREQ

Values:

enumerator SD_BUS_CLK_50M: Set SD output clk is 50MHz.

enumerator SD_BUS_CLK_40M: Set SD output clk is 40MHz.

enumerator SD_BUS_CLK_20M: Set SD output clk is 20MHz.

enumerator SD_BUS_CLK_10M: Set SD output clk is 10MHz.

enumerator SD_BUS_CLK_5M: Set SD output clk is 5MHz.

enumerator SD_BUS_CLK_2M5: Set SD output clk is 2.5MHz.

enumerator SD_BUS_CLK_1M25: Set SD output clk is 1.25MHz.

enumerator SD_BUS_CLK_625K: Set SD output clk is 625KHz.

enumerator SD_BUS_CLK_312K5: Set SD output clk is 312.5KHz.

enumerator SD_BUS_CLK_156K25: Set SD output clk is 156.25KHz.

enumerator SD_BUS_CLK_78K125: Set SD output clk is 78.125KHz.

enum T_SD_PIN_NUM

Values:

enumerator SDH_CLK: SD clock pin.

enumerator SDH_CMD: SD command pin.

enumerator SDH_D0: SD data0 pin.

enumerator SDH_D1: SD data1 pin.

enumerator SDH_D2: SD data2 pin.

enumerator SDH_D3: SD data3 pin.

enumerator SDH_WT_PROT: SD write protect pin.

enumerator SDH_CD: SD card detect pin.