ACTIVE_LEVEL_MASK
ACTIVE_LEVEL_MASK;
pin_reg &= ~(ACTIVE_LEVEL_MASK << ACTIVE_LEVEL_OFF);
pin_reg &= ~(ACTIVE_LEVEL_MASK << ACTIVE_LEVEL_OFF);
pin_reg &= ~(ACTIVE_LEVEL_MASK << ACTIVE_LEVEL_OFF);
pin_reg &= ~(ACTIVE_LEVEL_MASK << ACTIVE_LEVEL_OFF);
pin_reg &= ~(ACTIVE_LEVEL_MASK << ACTIVE_LEVEL_OFF);