GND1SPI_CFG2N/C3N/C4N/C5N/C6RESETN7BT_TXD8BT_RXD9I2C_SDA_S10I2C_SCL_S11VDDIO12GND13GPIO314GPIO415UART_TXD16UART_RXD17VBAT18CHIP_EN19RTC_CLK20GND21GPIO822SPI_SCK23SPI_MISO24SPI_SSN25SPI_MOSI26GPIO727GND28GPIO1729GPIO1830GPIO1931GPIO2032IRQN33I2C_SCL_M34I2C_SDA_M35GND36EP37