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doc(sdmmc): doc(sdmmc): updated sdmmc programming guide for esp32p4

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Armando
2023-11-21 12:11:45 +08:00
parent 77299842ed
commit f893750bb6
5 changed files with 35 additions and 38 deletions
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docs/en/api-reference/peripherals/sdmmc_host.rst
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@@ -67,10 +67,15 @@ Overview
Pins used by Slot 0 (``HS1_*``) are also used to connect the SPI flash chip in ESP32-WROOM and ESP32-WROVER modules. These pins cannot be concurrently shared between an SD card and an SPI flash. If you need to use Slot 0, establish an alternative connection for the SPI flash using different pins and configure the necessary eFuses accordingly.
.. only:: SOC_SDMMC_USE_GPIO_MATRIX
.. only:: esp32s3
Both slots :c:macro:`SDMMC_HOST_SLOT_0` and :c:macro:`SDMMC_HOST_SLOT_1` support 1-, 4- and 8-line SD interfaces. The slots are connected to {IDF_TARGET_NAME} GPIOs using the GPIO matrix. This means that any GPIO may be used for each of the SD card signals.
.. only:: esp32p4
- :c:macro:`SDMMC_HOST_SLOT_1` is routed via GPIO Matrix. This means that any GPIO may be used for each of the SD card signals. It is for non UHS-I usage.
- :c:macro:`SDMMC_HOST_SLOT_0` is dedicated to UHS-I mode, which is not yet supported in the driver.
Supported Speed Modes
---------------------