SDIO Interface Voltage - Core-3308Y - Firefly Open Source CommunitySDIO Interface Voltage

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Posted at 10/7/2023 16:52:02 1^#

Hello, please check this specification: https://download.t-firefly.com/% ... on.pdf?v=1696668643

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Posted at 10/9/2023 10:45:37 2^#

ivan.p Posted at 10/9/2023 07:10
According to RK3308 datasheet, SDIO signals correspond to VCCIO4 domain. Its specified voltage is 1. ...

No, you can only turn on or off the I/O via software. Switching SDIO voltage needs to change the hardware.

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