| 1 | IO10 | SPI_SCK | I2C0_SDA/UART2_CTS_N/SDIO_D3/SPI0_CK/PWM1_OUT/I2S0_TX |
| 2 | IO12 | SPI_NSS | UART2_RXD/SDIO_CLK/SPI0_CSN/PWM3_OUT/RF_RX_EN_EXT/I2S0_BCLK |
| 3 | NC | - | - |
| 4 | IO14 | GPIO | SSI_CLK/UART0_RXD/UART2_CTS_N/SDIO_D1/PWM5_OUT/I2C0_SCL |
| 5 | IO13 | ADC | SSI_DATA/UART0_TXD/UART2_RTS_N/SDIO_D0/PWM4_OUT/I2C0_SDA/I2S0_WS |
| 6 | IO02 | DAC | UART1_RTS_N/SPI1_TXD/JTAG_TRSTN/PWM2_OUT/SSI_CLK |
| 7 | IO07 | GPIO | UART1_CTS_N/SPI0_RXD/PWM0_OUT/I2S0_BCLK |
| 8 | IO08 | GPIO | UART1_RTS_N/SPI0_TXD/PWM1_OUT/I2S0_WS/WLAN_ACTIVE |
| 9 | IO01 | IIC_SCL | UART1_RXD/SPI1_RXD/JTAG_TCK/PWM4_OUT/I2C1_SCL/ |
| 10 | IO00 | IIC_SDA | UART1_TXD/SPI1_CK/JTAG_TDO/PWM3_OUT/I2C1_SDA |
| 11 | IO03 | GPIO | UART0_TXD/UART1_CTS_N/SPI1_CSN/JTAG_TDI/PWM5_OUT/I2C1_SDA/SSI_DATA |
| 12 | IO05 | UART_RX | UART1_RXD/SPI0_CSN/PWM2_OUT/I2S0_MCLK |
| 13 | IO06 | UART_TX | UART1_TXD/SPI0_CK/PWM3_OUT/I2S0_TX |
| 14 | IO04 | GPIO | UART0_RXD/JTAG_TMS/PWM1_OUT/I2C1_SCL |
| 15 | IO09 | SPI_MOSI | I2C0_SCL/UART2_RTS_N/SDIO_D2/SPI0_TXD/PWM0_OUT/I2S0_MCLK |
| 16 | IO11 | SPI_MISO | UART2_TXD/SDIO_CMD/SPI0_RXD/PWM2_OUT/RF_TX_EN_EXT/I2S0_RX |
| 17 | GND | 电源地 | - |
| 18 | V3.3 | 3.3V输出 | - |
| 19 | GND | 电源地 | - |
| 20 | V5.0 | 5V输出 | - |
