The MCI Synchronous Driver
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The MCI (Multimedia Card / Memory Card Interface) synchronous driver is used for a high
level stack implementation, which supports MultiMedia Card (MMC) Specification V4.3,
the SD Memory Card Specification V2.0, and the SDIO V2.0 specification.

Features
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* Initialization/de-initialization
* Device selection/de-selection
* Sending command on the selected slot
* Data transfer: reading, writing

Applications
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They are commonly used in an application for reading and writing SD/MMC/SDIO type card.

Dependencies
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Multimedia Card / Memory Card Interface capable hardware.

Concurrency
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N.A

Limitations
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N.A

Known issues and workarounds
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N/A