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Difference between revisions of "Zero/hardware/gpio"

< Zero‎ | hardware
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Revision as of 06:36, 14 September 2021

 Radxa Zero >  Hardware >  GPIO


GPIO number Function4 Function3 Function2 Function1 Pin# Pin# Function1 Function2 Function3 Function4 GPIO number
+3.3V 1 2 +5.0V
I2CEE_SDA_M3 GPIOA_14 3 4 +5.0V
I2CEE_SCL_M3 GPIOA_15 5 6 GND
UARTAO_B_TX I2CAO_SCL_M0 GPIOAO_3 7 8 GPIOAO_0 UARTAO_A_TXD
GND 9 10 GPIOAO_1 UARTAO_A_RXD
UARTAO_B_RX I2CAO_SDA_M0 GPIOAO_2 11 12 GPIOX_9 SPIA_MISO
I2C_EE_SCL_M1 SPIA_SCLK GPIOX11 13 14 GND
ADC1 15 16 GPIOX_10 SPIA_SS0 I2C_EE_SDA_M1
+3.3V 17 18 GPIOX_8 SPIA_MOSI PWMC
SPIB_MOSI UARTEE_C_RTS GPIOH_4 19 20 GND
PWMF SPIB_MISO UARTEE_C_CTS GPIOH_5 21 22 GPIOC_7 -
SPIB_SCLK UARTEE_C_TX GPIOH_7 23 24 GPIOH_6 UARTEE_C_RX SPIB_SS0
GND 25 26 ADC2
UARTAO_B_TX I2CAO_SCL GPIOAO_3 27 28 GPIOAO_2 I2CAO_SDA UARTAO_B_RX
NC 29 30 GND
NC 31 32 GPIOAO_4 PWMAO_C
NC 33 34 GND
UARTAO_B_TX TDMB_SCLK GPIOAO_8 35 36 GPIOH_8 -
UARTAO_B_RX MCLK0 GPIOAO_9 37 38 GPIOAO_10 TDMB_D1
GND 39 40 GPIOAO_11 PWMAO_A

GPIO number

  • GPIO are in two banks, GPIO AO domain and GPIO EE domain
    • AO domain: GPIOAO_0 - GPIOAO_11
    • EE domain: GPIOA_14 - GPIOA_15 | GPIOH_0 - GPIOH_8 | GPIOX_0 - GPIOX_19
  • UARTs
    • AO domain: UARTAO_A | UARTAO_B
    • EE domain: UART_A | UART_B | UART_C