GPIOIIC_SCL
bits & GPIOIIC_SCL ? GPIO_PIN_HIGH : GPIO_PIN_LOW);
bits |= GPIOIIC_SCL;
{ GPIOIIC_SDA, GPIOIIC_SCL, GPIOIIC_SDA, 0 }
bits & GPIOIIC_SCL ? GPIO_PIN_HIGH : GPIO_PIN_LOW);
bits |= GPIOIIC_SCL;
{ GPIOIIC_SDA, GPIOIIC_SCL, GPIOIIC_SDA, 0 }