Data Structures

General Description

Data Structures
struct	cy_stc_sd_host_init_config_t
	SD Host initialization configuration structure. More...
struct	cy_stc_sd_host_sd_card_config_t
	SD/eMMC card configuration structure. More...
struct	cy_stc_sd_host_cmd_config_t
	SD Host command configuration structure. More...
struct	cy_stc_sd_host_data_config_t
	The SD Host data transfer configuration structure. More...
struct	cy_stc_sd_host_write_read_config_t
	SD Host Write/Read structure. More...
struct	cy_stc_sd_host_context_t
	Context structure. More...

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Data Structure Documentation

cy_stc_sd_host_init_config_t

struct cy_stc_sd_host_init_config_t

Data Fields
bool	emmc	Set to true of eMMC otherwise false.
cy_en_sd_host_dma_type_t	dmaType	Selects the DMA type to be used.
bool	enableLedControl	If true the SD clock controls one IO used to indicate when the card is being accessed.

cy_stc_sd_host_sd_card_config_t

struct cy_stc_sd_host_sd_card_config_t

Data Fields
bool	lowVoltageSignaling	If true, the host supports the 1.8V signaling.
cy_en_sd_host_bus_width_t	busWidth	The desired bus width.
cy_en_sd_host_card_type_t *	cardType	The card type.
uint32_t *	rca	The pointer to where to store the cards relative card address.
cy_en_sd_host_card_capacity_t *	cardCapacity	Stores the card capacity.

cy_stc_sd_host_cmd_config_t

struct cy_stc_sd_host_cmd_config_t

Data Fields
uint32_t	commandIndex	The index of the command.
uint32_t	commandArgument	The argument for the command.
bool	enableCrcCheck	Enables the CRC check on the response.
bool	enableAutoResponseErrorCheck	If true the hardware checks the response for errors.
cy_en_sd_host_response_type_t	respType	The response type.
bool	enableIdxCheck	Checks the index of the response.
bool	dataPresent	true: Data is present to be transferred using the DAT line, false: Commands use the CMD line only.
cy_en_sd_host_cmd_type_t	cmdType	The command type.

cy_stc_sd_host_data_config_t

struct cy_stc_sd_host_data_config_t

Data Fields
uint32_t	blockSize	The size of the data block.
uint32_t	numberOfBlock	The number of blocks to send.
bool	enableDma	Enables DMA for the transaction.
cy_en_sd_host_auto_cmd_t	autoCommand	Selects which auto commands are used if any.
bool	read	true = Read from the card, false = Write to the card.
uint32_t *	data	The pointer to data to send/receive or the pointer to the DMA descriptor.
uint32_t	dataTimeout	The timeout value for the transfer.
bool	enableIntAtBlockGap	Enables the interrupt generation at the block gap.
bool	enReliableWrite	For EMMC enables the reliable write.

cy_stc_sd_host_write_read_config_t

struct cy_stc_sd_host_write_read_config_t

Data Fields
uint32_t *	data	The pointer to data.
uint32_t	address	The address to Write/Read data on the card or eMMC.
uint32_t	numberOfBlocks	The number of blocks to Write/Read.
cy_en_sd_host_auto_cmd_t	autoCommand	Selects which auto commands are used if any.
uint32_t	dataTimeout	The timeout value for the transfer.
bool	enReliableWrite	For EMMC cards, enables the reliable write.
bool	enableDma	Enables DMA for the transaction.

cy_stc_sd_host_context_t

struct cy_stc_sd_host_context_t

Data Fields
cy_en_sd_host_dma_type_t	dmaType	Defines the DMA type to be used.
cy_en_sd_host_card_capacity_t	cardCapacity	The standard card or the card with the high capacity.
uint32_t	maxSectorNum	The SD card maximum number of the sectors.
uint32_t	RCA	The relative card address.
cy_en_sd_host_card_type_t	cardType	The card type.
uint32_t	csd[4]	The Card-Specific Data register.
cy_en_sd_host_bus_width_t	busWidth	card bus width.