Module stm32_hal2::pac::sdmmc1::dctrl

source · [−]

Expand description

The SDMMC_DCTRL register control the data path state machine (DPSM).

Structs

DCTRL_SPEC

The SDMMC_DCTRL register control the data path state machine (DPSM).

R

Register DCTRL reader

W

Register DCTRL writer

Type Definitions

BOOTACKEN_R

Field BOOTACKEN reader - Enable the reception of the boot acknowledgment. This bit can only be written by firmware when DPSM is inactive (DPSMACT = 0).

BOOTACKEN_W

Field BOOTACKEN writer - Enable the reception of the boot acknowledgment. This bit can only be written by firmware when DPSM is inactive (DPSMACT = 0).

DBLOCKSIZE_R

Field DBLOCKSIZE reader - Data block size This bit can only be written by firmware when DPSM is inactive (DPSMACT = 0). Define the data block length when the block data transfer mode is selected: When DATALENGTH is not a multiple of DBLOCKSIZE, the transfered data is truncated at a multiple of DBLOCKSIZE. (Any remain data will not be transfered.) When DDR = 1, DBLOCKSIZE = 0000 shall not be used. (No data will be transfered)

DBLOCKSIZE_W

Field DBLOCKSIZE writer - Data block size This bit can only be written by firmware when DPSM is inactive (DPSMACT = 0). Define the data block length when the block data transfer mode is selected: When DATALENGTH is not a multiple of DBLOCKSIZE, the transfered data is truncated at a multiple of DBLOCKSIZE. (Any remain data will not be transfered.) When DDR = 1, DBLOCKSIZE = 0000 shall not be used. (No data will be transfered)

DTDIR_R

Field DTDIR reader - Data transfer direction selection This bit can only be written by firmware when DPSM is inactive (DPSMACT = 0).

DTDIR_W

Field DTDIR writer - Data transfer direction selection This bit can only be written by firmware when DPSM is inactive (DPSMACT = 0).

DTEN_R

Field DTEN reader - Data transfer enable bit This bit can only be written by firmware when DPSM is inactive (DPSMACT = 0). This bit is cleared by Hardware when data transfer completes. This bit shall only be used to transfer data when no associated data transfer command is used, i.e. shall not be used with SD or eMMC cards.

DTEN_W

Field DTEN writer - Data transfer enable bit This bit can only be written by firmware when DPSM is inactive (DPSMACT = 0). This bit is cleared by Hardware when data transfer completes. This bit shall only be used to transfer data when no associated data transfer command is used, i.e. shall not be used with SD or eMMC cards.

DTMODE_R

Field DTMODE reader - Data transfer mode selection. This bit can only be written by firmware when DPSM is inactive (DPSMACT = 0).

DTMODE_W

Field DTMODE writer - Data transfer mode selection. This bit can only be written by firmware when DPSM is inactive (DPSMACT = 0).

FIFORST_R

Field FIFORST reader - FIFO reset, will flush any remaining data. This bit can only be written by firmware when IDMAEN= 0 and DPSM is active (DPSMACT = 1). This bit will only take effect when a transfer error or transfer hold occurs.

FIFORST_W

Field FIFORST writer - FIFO reset, will flush any remaining data. This bit can only be written by firmware when IDMAEN= 0 and DPSM is active (DPSMACT = 1). This bit will only take effect when a transfer error or transfer hold occurs.

RWMOD_R

Field RWMOD reader - Read wait mode. This bit can only be written by firmware when DPSM is inactive (DPSMACT = 0).

RWMOD_W

Field RWMOD writer - Read wait mode. This bit can only be written by firmware when DPSM is inactive (DPSMACT = 0).

RWSTART_R

Field RWSTART reader - Read wait start. If this bit is set, read wait operation starts.

RWSTART_W

Field RWSTART writer - Read wait start. If this bit is set, read wait operation starts.

RWSTOP_R

Field RWSTOP reader - Read wait stop This bit is written by firmware and auto cleared by hardware when the DPSM moves from the READ_WAIT state to the WAIT_R or IDLE state.

RWSTOP_W

Field RWSTOP writer - Read wait stop This bit is written by firmware and auto cleared by hardware when the DPSM moves from the READ_WAIT state to the WAIT_R or IDLE state.

SDIOEN_R

Field SDIOEN reader - SD I/O interrupt enable functions This bit can only be written by firmware when DPSM is inactive (DPSMACT = 0). If this bit is set, the DPSM enables the SD I/O card specific interrupt operation.

SDIOEN_W

Field SDIOEN writer - SD I/O interrupt enable functions This bit can only be written by firmware when DPSM is inactive (DPSMACT = 0). If this bit is set, the DPSM enables the SD I/O card specific interrupt operation.