DCTRL

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Interpret as DCTRL

data control register

DTEN	DTEN
DTDIR	Data transfer direction selection
DTMODE	Data transfer mode selection 1: Stream or SDIO multibyte data transfer.
DMAEN	DMA enable bit
DBLOCKSIZE	Data block size
RWSTART	Read wait start
RWSTOP	Read wait stop
RWMOD	Read wait mode
SDIOEN	SD I/O enable functions

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