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ETRA SOM/ETRA Hardware/Peripherals/SDMMC

453 bytes added, 10:51, 30 December 2020
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<section begin="Body" />
==Peripheral SDMMC ==
''TBD: sostituire le sezioni con le informazioni sull'uso della periferica''Secure digital input/output MultiMediaCard interface (SDMMC) provides an interface between the AHB bus and SD memory cards, SDIO cards and eMMC devices.''Nell'esempio di seguito c'è la descrizione dell'interfaccia HDMI''ETRA SoM provides up to two SDMMC interfaces, the second interface is internally used if the eMMC flash is populated on board of the SoM.
=== Description ===
The SDMMC interface available on ETRA SoM is based on xxxxx ''TBD:SOC name'' STM32MP1 SoC.
The SDMMC port supports the following standards and features:
* High-Definition Multimedia Interface compliance with Embedded MultiMediaCard System Specification, Version 5.1.4a * Support card support for up to 1080p at 60Hz HDTV display resolutions three different databus modes: 1-bit (default), 4-bit and up to QXGA graphic display resolutions8-bit (HS400 is not supported) * full compatibility with previous versions of MultiMediaCards (backward compatibility) * full compliance with SD memory card specifications version 6. 0 (SPI mode and UHS-II mode not supported) * Support for 4k x 2k full compliance with SDIO card specification version 4.0 (SPI mode and 3D video formats UHS-II mode not supported) * Support for data transfer up to 16208 Mbyte/s for the 8-bit Deep Color modesmode
===Pin mapping===
U0016
a000298_approval, dave_user
551
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