Strange GPIO settings after reset (ESP32-S3)

[vvb333007]

Hello,

Recently I switched from ESP32 to ESP32S3 and noticed that GPIO's used as interface pins (i.e. UART TX, Flash SPI clock, etc) have their output disabled. I checked it by calling

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gpio_ll_get_io_config( .... );

and also I checked it by calling

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esp_err_t gpio_dump_io_configuration(FILE *out_stream, uint64_t io_bit_mask);

Every pin I check has its output disabled, even pins 44/43 (on ESP32-S3 those are default pins for UART0) has output off, however UART0 works just fine.

Is this normal behaviour?