I2C1   :Slave
I2C2   :Unused
I2C3   :Master
　　　Control TPS55289RYQR from this port and set 5 V to 15 V via CC → PD.
GPIO0   :Unused
GPIO1   :Unused
GPIO2   :Unused
HPD1_GPIO3   :Unused
HPD2_GPIO4   :Unused
GPIO12   :Unused
GPIO13   :High(Fixed)
GPIO14_PWM   :Unused
GPIO15_PWM   :Unused
GPIO16_PEXT1   :Unused
GPIO17_PEXT2   :Unused
C1_USB_N_GPIO19   :Unused
C1_USB_P_GPIO18   :Unused
C2_USB_N_GPIO21   :Unused
C2_USB_P_GPIO20   :Unused

SPI_POCI_GPIO8   :SPI_POCI
SPI_PICO_GPIO9   :SPI_PICO
SPI_CLK_GPIO10   :SPI_CLK
SPI_CS_GPIO11   :SPI_CS