Rock3/CM3/IO/GPIO
ROCK 3 > Compute Module 3 > Radxa CM3 IO Board > Radxa CM3 IO GPIO
General purpose input-output (GPIO) connector
Radxa CM3 IO has a 40-pin expansion header. Each pin is distinguished by color.
Hardware V1.1
| GPIO number | Function4 | Function3 | Function2 | Function1 | Pin# | Pin# | Function1 | Function2 | Function3 | Function4 | GPIO number | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| +3.3V | 1 | 2 | +5.0V | |||||||||
| 14 | PWM2_M1 | SPI0_MOSI_M0 | I2C2_SDA_M0 | GPIO0_B6 | 3 | 4 | +5.0V | |||||
| 13 | PWM1_M1 | SPI0_CLK_M0 | I2C2_SCL_M0 | GPIO0_B5 | 5 | 6 | GND | |||||
| 125 | SDMMC2_PWREN_M0 | I2S1_SDI3_M1 | GPIO3_D5 | 7 | 8 | GPIO0_D1 | UART2_TX_M0 | 25 | ||||
| GND | 9 | 10 | GPIO0_D0 | UART2_RX_M0 | 24 | |||||||
| 23 | UART0_CTSn | PWM0_M1 | GPIO0_C7 | 11 | 12 | GPIO3_C7 | I2S1_SCLK_TX_M1 | SDMMC2_D1_M0 | 119 | |||
| 15 | PWM0_M0 | GPIO0_B7 | 13 | 14 | GND | |||||||
| 19 | PWM4 | GPIO0_C3 | 15 | 16 | GPIO3_D4 | I2S1_SDI2_M1 | SDMMC2_DET_M0 | 124 | ||||
| +3.3V | 17 | 18 | GPIO3_D3 | I2S1_SDI1_M1 | SDMMC2_CLK_M0 | 123 | ||||||
| 138 | I2C4_SDA_M0 | I2S2_SDI_M1 | SPI3_MOSI_M0 | GPIO4_B2 | 19 | 20 | GND | |||||
| 136 | I2S1_SDO1_M1 | SPI3_MISO_M0 | GPIO4_B0 | 21 | 22 | GPIO3_C6 | I2S1_MCLK_M1 | SDMMC2_D0_M0 | 118 | |||
| 139 | I2C4_SCL_M0 | I2S2_SDO_M1 | SPI3_CLK_M0 | GPIO4_B3 | 23 | 24 | GPIO4_A6 | SPI3_CS0_M0 | I2S1_SCLK_RX | 134 | ||
| GND | 25 | 26 | SARADC_VIN3 | |||||||||
| 140 | I2C2_SDA_M1 | GPIO4_B4 | 27 | 28 | GPIO4_B5 | I2C2_SCL_M1 | I2S1_SDO3_M1 | 141 | ||||
| 137 | ISP_PRELIGHT_TRIG | I2S1_SDO2_M1 | GPIO4_B1 | 29 | 30 | GND | ||||||
| 21 | PWM6 | SPI0_MISO_M0 | GPIO0_C5 | 31 | 32 | GPIO4_C0 | PWM11_IR_M1 | 144 | ||||
| 22 | PWM7_IR | SPI0_CS0_M0 | GPIO0_C6 | 33 | 34 | GND | ||||||
| 120 | SDMMC2_D2_M0 | I2S1_LRCK_TX_M1 | GPIO3_D0 | 35 | 36 | GPIO4_A7 | I2S1_LRCK_RX_M1 | SPI3_CS1_M0 | 135 | |||
| 18 | PWM3_IR | GPIO0_C2 | 37 | 38 | GPIO3_D2 | I2S1_SDI0_M1 | 122 | |||||
| GND | 39 | 40 | GPIO3_D1 | I2S1_SDO0_M1 | SDMMC2_D3_M0 | 121 |