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STMicroelectronics /STM32H7A3x /SDMMC1 /SDMMC_POWER

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Interpret as SDMMC_POWER

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31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0PWRCTRL 0 (VSWITCH)VSWITCH 0 (VSWITCHEN)VSWITCHEN 0 (DIRPOL)DIRPOL

Description

SDMMC power control register

Fields

PWRCTRL

SDMMC state control bits. These bits can only be written when the SDMMC is not in the power-on state (PWRCTRL?11). These bits are used to define the functional state of the SDMMC signals: Any further write will be ignored, PWRCTRL value will keep 11.
VSWITCH

Voltage switch sequence start. This bit is used to start the timing critical section of the voltage switch sequence:
VSWITCHEN

Voltage switch procedure enable. This bit can only be written by firmware when CPSM is disabled (CPSMEN = 0). This bit is used to stop the SDMMC_CK after the voltage switch command response:
DIRPOL

Data and command direction signals polarity selection. This bit can only be written when the SDMMC is in the power-off state (PWRCTRL = 00).

Links

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Register Reference

https://github.com/cmsis-svd/cmsis-svd-data