For reference.
EE&O ...
The H-bridge driven by IR2110 (and others) has four "phases" for working.
Can be simplified .. Link.
LIN1 and LIN2 are High. HIN1 and HIN2 are Low. "Brake" phase LOW.
LIN1 and LIN2 are Low. HIN1 and HIN2 are PWM_ON. "Brake" phase HIGH.
LIN1 is High and HIN2 is PWM_ON, LIN2 is Low and HIN1 is Low: motor "rotate" "left".
LIN1 is Low and HIN2 Low, LIN2 is High and HIN1 is PWM_ON: motor "rotate" "left".