Figure 323. Sdio (Multiple) Block Write Operation; Figure 324. Sdio Sequential Read Operation; Figure 325. Sdio Sequential Write Operation - STMicroelectronics STM32F405 Reference Manual

RM0090
SDIO_CMD
Optional cards Busy.
Needed for CE-ATA
Note: The SDIO will not send any data as long as the Busy signal is asserted (SDIO_D0 pulled
low).
SDIO_CMD
SDIO_D
SDIO_CMD
SDIO_D

Figure 323. SDIO (multiple) block write operation

From host to card From card to host
Command Response
SDIO_D

Figure 324. SDIO sequential read operation

From host to
card(s)
From card to host
Command Response

Figure 325. SDIO sequential write operation

From host to
card(s)
From card to host
Command Response
DocID018909 Rev 11
Secure digital input/output interface (SDIO)
Data from host to card
Busy Data block crc
Busy
Block write operation
Multiple block write operation
Data from card to host
Data stream
Data transfer operation
Data from host to card
Data stream
Data transfer operation
Stop command
stops data transfer
Command Response
Data block crc Busy
Data stop operation
ai14737
Stop command
stops data transfer
Command Response
Data stop operation
ai14738
Stop command
stops data transfer
Command Response
Data stop operation
ai14739
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