| Name | No. | Type | PinMap | Function |
| VDDA | 1 | P | | Analog power supply
(2.3 V ~ 3.6 V) |
| LNA_IN | 2 | I/O | | RF input and output |
| VDDA3P3 | 3 | P | | Analog power supply
(2.3 V ~ 3.6 V) |
| VDDA3P3 | 4 | P | | Analog power supply
(2.3 V ~ 3.6 V) |
| IO36(SENSOR_VP) | 5 | I | Extended IO port | GPIO36, ADC1_CH0,
RTC_GPIO0 |
| IO37(SENSOR_CAPP) | 6 | I | BUTTON A | GPIO37, ADC1_CH1,
RTC_GPIO1 |
| IO38(SENSOR_CAPN) | 7 | I | | GPIO38, ADC1_CH2,
RTC_GPIO2 |
| IO39(SENSOR_VN) | 8 | I | BUTTON B | GPIO39, ADC1_CH3,
RTC_GPIO3 |
| EN | 9 | I | | High:
On; enables the module
Low: Off; the module powers off
Note: Do not leave this pin floating. |
| IO34 | 10 | I | Microphone SDA | ADC1_CH6, RTC_GPIO4 |
| IO35 | 11 | I | | ADC1_CH7, RTC_GPIO5 |
| IO32 | 12 | I/O | GROVE SDA | 32K_XP (32.768 kHz
crystal oscillator input), ADC1_CH4, TOUCH9, RTC_GPIO9 |
| IO33 | 13 | I/O | GROVE SCL | 32K_XN (32.768 kHz
crystal oscillator output), ADC1_CH5, TOUCH8, RTC_GPIO8 |
| IO25 | 14 | I/O | | GPIO25, DAC_1,
ADC2_CH8, RTC_GPIO6, EMAC_RXD0 |
| IO26 | 15 | I/O | Extended IO port | GPIO26, DAC_2,
ADC2_CH9, RTC_GPIO7, EMAC_RXD1 |
| IO27 | 16 | I/O | | GPIO27, ADC2_CH7,
TOUCH7, RTC_GPIO17, EMAC_RX_DV |
| IO14 | 17 | I/O | | ADC2_CH6, TOUCH6,
RTC_GPIO16, MTMS, HSPICLK, HS2_CLK, SD_CLK, EMAC_TXD2 |
| IO12 | 18 | I/O | | ADC2_CH5, TOUCH5,
RTC_GPIO15, MTDI, HSPIQ, HS2_DATA2, SD_DATA2, EMAC_TXD3 |
| VDD3P3_RTC | 19 | P | | Input power supply
for RTC IO (2.3 V ~ 3.6 V) |
| IO13 | 20 | I/O | TFT_CLK | ADC2_CH4, TOUCH4,
RTC_GPIO14, MTCK, HSPID, HS2_DATA3, SD_DATA3, EMAC_RX_ER |
| IO15 | 21 | I/O | TFT_MOSI | ADC2_CH3, TOUCH3,
RTC_GPIO13, MTDO, HSPICS0, HS2_CMD, SD_CMD, EMAC_RXD3 |
| IO2 | 22 | I/O | | ADC2_CH2, TOUCH2,
RTC_GPIO12, HSPIWP, HS2_DATA0, SD_DATA0 |
| IO0 | 23 | I/O | Microphone SCL / Extended IO port | ADC2_CH1, TOUCH1,
RTC_GPIO11, CLK_OUT1, EMAC_TX_CLK |
| IO4 | 24 | I/O | | ADC2_CH0, TOUCH0,
RTC_GPIO10, HSPIHD, HS2_DATA1, SD_DATA1, EMAC_TX_ER |
| IO16 | 25 | I/O | | GPIO16, HS1_DATA4,
U2RXD, EMAC_CLK_OUT |
| VDD_SDIO | 26 | P | | Output power supply:
the same voltage as VDD3P3_RTC |
| IO17 | 27 | I/O | | GPIO17, HS1_DATA5,
U2TXD, EMAC_CLK_OUT_180 |
| IO9(SD2) | 28 | I/O | IR transmitter | GPIO9, SD_DATA2,
SPIHD, HS1_DATA2, U1RXD |
| IO10(SD3) | 29 | I/O | Red LED | GPIO10, SD_DATA3,
SPIWP, HS1_DATA3, U1TXD |
| IO11(CMD) | 30 | I/O | | GPIO11, SD_CMD,
SPICS0, HS1_CMD, U1RTS |
| IO16(CLK) | 31 | I/O | | GPIO6, SD_CLK,
SPICLK, HS1_CLK, U1CTS |
| IO7(SD0) | 32 | I/O | | GPIO7, SD_DATA0,
SPIQ, HS1_DATA0, U2RTS |
| IO8(SD1) | 33 | I/O | | GPIO8, SD_DATA1,
SPID, HS1_DATA1, U2CTS |
| IO5 | 34 | I/O | TFT_CS | GPIO5, VSPICS0,
HS1_DATA6, EMAC_RX_CLK |
| IO18 | 35 | I/O | TFT_RST | GPIO18, VSPICLK,
HS1_DATA7 |
| IO23 | 36 | I/O | TFT_DC | GPIO23, VSPID,
HS1_STROBE |
| VDD3P3_CPU | 37 | P | | Input power supply
for CPU IO (1.8 V ~ 3.6 V) |
| IO19 | 38 | I/O | | GPIO19, VSPIQ, U0CTS,
EMAC_TXD0 |
| IO22 | 39 | I/O | IMU & AXP SCL | GPIO22, VSPIWP,
U0RTS, EMAC_TXD1 |
| IO03(U0RXD) | 40 | I/O | | GPIO3, U0RXD,
CLK_OUT2 |
| IO01(U0TXD) | 41 | I/O | | GPIO1, U0TXD,
CLK_OUT3, EMAC_RXD2 |
| IO21 | 42 | I/O | IMU & AXP SDA | GPIO21, VSPIHD,
EMAC_TX_EN |
| VDDA | 43 | P | | Analog power supply
(2.3 V ~ 3.6 V) |
| XTAL_N_NC | 44 | – | | NC |
| XTAL_P_NC | 45 | – | | NC |
| VDDA | 46 | P | | Analog power supply
(2.3 V ~ 3.6 V) |
| CAP2_NC | 47 | – | | NC |
| CAP1_NC | 48 | – | | NC |
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