If driven High, flash voltage (VDD_SDIO) is 1.8V not default 3.3V. Has internal pull-down, so unconnected = Low = 3.3V. May prevent flashing and/or booting if 3.3V flash is used and this pin is pulled high, causing the flash to brownout. See the ESP32 datasheet for more details...
_OUT_IDX, FSPICS3_OUT_IDX, FSPICS4_OUT_IDX, FSPICS5_OUT_IDX}, .spics_in = FSPICS0_IN_IDX, .spiclk_iomux_pin = SPI2__PIN_NUM_CLK, .spid_iomuxpin = SPI2_IOMUX_PIN_NUM_MOSI, 4 changes:4 additions & 0 deletions 4 components/soc/32c3/include/soc/Kconfig.soc_caps.in...