Sdio Functional Description; Figure 373. Sequential Read Operation; Figure 374. Sequential Write Operation; Figure 375. Sdio Block Diagram - ST STM32F446 Series Reference Manual

Secure digital input/output interface (SDIO)
29.3

SDIO functional description

The SDIO consists of two parts:
• The SDIO adapter block provides all functions specific to the MMC/SD/SD I/O card
such as the clock generation unit, command and data transfer.
•
The APB2 interface accesses the SDIO adapter registers, and generates interrupt and
DMA request signals.
976/1328

Figure 373. Sequential read operation

Figure 374. Sequential write operation

Figure 375. SDIO block diagram

RM0390 Rev 4
RM0390