sdio_data_config_t Struct Reference

The SD Host data transfer configuration structure. More...

#include <sdio.h>

Data Fields
uint32_t	blockSize
uint32_t	numberOfBlock
bool	enableDma
sdio_auto_cmd_en	autoCommand
bool	read
uint32_t *	data
uint32_t	dataTimeout
bool	enableIntAtBlockGap
bool	enReliableWrite

Detailed Description

The SD Host data transfer configuration structure.

Field Documentation

blockSize

uint32_t sdio_data_config_t::blockSize

The size of each data block in bytes.

numberOfBlock

uint32_t sdio_data_config_t::numberOfBlock

The number of blocks to be transferred.

enableDma

bool sdio_data_config_t::enableDma

Enables or disables DMA for the data transaction.

autoCommand

sdio_auto_cmd_en sdio_data_config_t::autoCommand

Selects if and which auto commands (e.g., CMD12, CMD23) are used.

read

bool sdio_data_config_t::read

True for a read operation from card; false for a write operation to card.

data

uint32_t* sdio_data_config_t::data

Pointer to the data buffer for send/receive, or to the DMA descriptor.

dataTimeout

uint32_t sdio_data_config_t::dataTimeout

The timeout value in clock cycles for the data transfer.

enableIntAtBlockGap

bool sdio_data_config_t::enableIntAtBlockGap

Enables interrupt generation at block gaps during multi-block transfers.

enReliableWrite

bool sdio_data_config_t::enReliableWrite

Enables reliable write mechanism for cards that support it.