ST STM32F207 series User Manual

RM0033 Rev 9 781/1381
RM0033 Secure digital input/output interface (SDIO)
791
26.9.8 SDIO data length register (SDIO_DLEN)
Address offset: 0x28
Reset value: 0x0000 0000
The SDIO_DLEN register contains the number of data bytes to be transferred. The value is
loaded into the data counter when data transfer starts.
Note: For a block data transfer, the value in the data length register must be a multiple of the block
size (see SDIO_DCTRL). A data transfer must be written to the data timer register and the
data length register before being written to the data control register.
For an SDIO multibyte transfer the value in the data length register must be between 1 and
512.
313029282726252423222120191817161514131211109876543210
Reserved
DATALENGTH
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
Bits 31:25 Reserved, must be kept at reset value
Bits 24:0 DATALENGTH: Data length value
Number of data bytes to be transferred.

ST STM32F207 series Specifications

General

Brand	ST
Model	STM32F207 series
Category	Microcontrollers
Language	English