ESP32-S3 SPICLK_P and SPICLK_N
Posted: Thu Aug 17, 2023 1:49 pm
What is the purpose of SPICLK_P and SPICLK_N?
Even in the internal schematic of the ESP32-S3-WROOM-2, though SPICLK_P (GPIO47) and SPICLK_N (GPIO48) are powered by VDD_SPI (so have the same voltage as the flash and PSRAM under ESP32-S3-WROOM-2 the metal shield) I do not see those SPICLK_P and SPICLK_N being connected to anything.
So what are those two pins used for, and why are they driven by VDD_SPI?
Also, for the ESP32-S3R8V, in esp32-s3_datasheet_en.pdf Table 2-1
does the fact that there are two pins mentioned in the "Pin Providing Power" column mean that you can choose to set those two pins to 3.3V, and keep the others powered by VDD_SPI?
Even in the internal schematic of the ESP32-S3-WROOM-2, though SPICLK_P (GPIO47) and SPICLK_N (GPIO48) are powered by VDD_SPI (so have the same voltage as the flash and PSRAM under ESP32-S3-WROOM-2 the metal shield) I do not see those SPICLK_P and SPICLK_N being connected to anything.
So what are those two pins used for, and why are they driven by VDD_SPI?
Also, for the ESP32-S3R8V, in esp32-s3_datasheet_en.pdf Table 2-1
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