PULL_DOWN_ENABLE_OFF
} else if (pin_reg & BIT(PULL_DOWN_ENABLE_OFF)) {
arg = (pin_reg >> PULL_DOWN_ENABLE_OFF) & BIT(0);
pin_reg &= ~BIT(PULL_DOWN_ENABLE_OFF);
pin_reg |= (arg & BIT(0)) << PULL_DOWN_ENABLE_OFF;