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Rock3/CM3/IO/GPIO

< Rock3‎ | CM3‎ | IO
    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 132
GND 39 40 GPIO3_D1 I2S1_SDO0_M1 SDMMC2_D3_M0 121