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SOM-5893 User Manual
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3.2.2.6
SDIO Configuration
Figure 3.10 SDIO configuration
SDIO Access Mode
This item allows users to select SDIO Access Mode.
Auto Option: Access SD device in DMA mode if controller support it, otherwise
in PIO mode.
DMA Option: Access SD device in DMA mode.
PIO Option: Access SD device in PIO mode.