IOCON Basic configuration

Enable the clock to the IOCON in the SYSAHBCLKCTRL register (SYSCON registerName = SYSAHBCLKCTRL addressOffset = 0x080, bit 18). Once the pins are configured, you can disable the IOCON clock to conserve power.

Note: If the open-drain pins PIO0_10 and PIO0_11 are not available on the package, prevent the pins from internally floating as follows: Set bits 10 and 11 in the GPIO DIR0 register to 1 to enable the output driver and write 1 to bits 10 and 11 in the GPIO CLR0 register to drive the outputs LOW internally.