IC, monitoring system and monitoring method thereof

An integrated circuit (IC) is provided. The IC includes at least one input pin, a controller, a timer, a first memory, a processor, at least one output pin, an output module, and a directly memory access (DMA) device. The controller is configured to provide a first control signal in response to a command from the input pin. The timer is configured to periodically provide a trigger signal according to the first control signal. The processor is coupled to the first memory, and is configured to store a first data to the first memory. The output module is coupled to the output pin. The DMA device is coupled between the output module and the first memory, and is configured to obtain the first data from the first memory in response to the trigger signal, and to transmit the first data to the output module. The output module is configured to provide the first data to the output pin according to a transmission rate.