Bureaucrats, dave_user, Administrators
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|-
|10 || JTAG_VREF || - || -
|-
|}
=== J18 - boot mode ===
J18 is a 6x1-pin, 2.54mm pitch header, pinstrip connector. The following table reports the connector's pinout:
{| class="wikitable"
|-
!Pin#
!Pin name
!Function
!Notes
|-
|1-2 || Boot || Boot from internal storage or microSD || Select storage device
|-
|3-4 || Reserved || - || Do Not Shortcircuit
|-
|5-6 || Reserved || - || Do Not Shortcircuit
|-
|}
|-
|}
=== Ethernet - J10 ===
Standard RJ-45 connector for 10/100Mbit/s
=== USB HOST - J11 ===
|}
=== Audio - J14 (only on AxelLite model) ===
J14 is a 53375-0610 Molex 6x2.5mm pin connector.
|}
=== GPIO expander - JP1- (for Axel ULite SOM)===
JP1 is a 2x6-pin, 2.54mm pitch header, pinstrip connector. The following table reports the connector's pinout:
!Pin name
!Function
!NotesGPIO!Alternate function
|-
|1 || 3.3V|| - || -
|
|-
|2 || DGND|| Ground || -
|
|-
|3 || GPIO_IN_0 || || GPIO2_IO09
|I2C3_SDA, UART6_RX
|-
|4 || GPIO_OUT_0 || || GPIO2_IO12
|ECSPI4_SCLK, UART8_TX
|-
|5 || GPIO_IN_1 || || GPIO2_IO08
|I2C3_SCL, UART6_TX
|-
|6 || GPIO_OUT_1 || || GPIO1_IO00
|I2C2_SCL
|-
|7 || GPIO_IN_2 || || GPIO2_IO11
|I2C4_SDA, UART7_RX
|-
|8 || GPIO_OUT_2 || || GPIO4_IO24
|ECSPI2_MISO
|-
|9 || GPIO_IN_3 || || GPIO2_IO10
|I2C4_SCL, UART7_TX
|-
|10 || GPIO_OUT_3 || || GPIO4_IO22
|ECSPI2_SS0
|-
|11 || GPIO_IN_4 || || GPIO2_IO05GPIO2_IO13|ECSPI4_MOSI, UART8_RX
|-
|12 || GPIO_OUT_4 || || GPIO1_IO23
|ECSPI3_MISO
|-
|}
=== GPIO expander - JP1 - (for Axel Lite SOM)===
JP1 is a 2x6-pin, 2.54mm pitch header, pinstrip connector. The following table reports the connector's pinout:
{| class="wikitable"
|-
!Pin#
!Pin name
!Function
!GPIO
!Alternate function
|-
|1 || 3.3V|| - || -
|
|-
|2 || DGND|| Ground || -
|
|-
|3 || GPIO_IN_0 || || GPIO4_IO08
|UART5_TX
|-
|4 || GPIO_OUT_0 || || GPIO4_IO15
|UART5_CTS / FLEXCAN2_RX
|-
|5 || GPIO_IN_1 || || GPIO4_IO09
|UART5_RX
|-
|6 || GPIO_OUT_1 || || GPIO1_IO06
|
|-
|7 || GPIO_IN_2 || || GPIO4_IO10
|FLEXCAN1_TX
|-
|8 || GPIO_OUT_2 || || GPIO5_IO28
|UART1_TX
|-
|9 || GPIO_IN_3 || || GPIO4_IO11
|FLEXCAN1_RX
|-
|10 || GPIO_OUT_3 || || GPIO5_IO29
|UART1_RX
|-
|11 || GPIO_IN_4 || || GPIO4_IO14
|UART5_RTS / FLEXCAN2_TX
|-
|12 || GPIO_OUT_4 || || GPIO3_IO20
|UART1_RTS
|-
|}