Sender and receiver, an operation method thereof, and an electronic device including the same

A receiver for receiving data, the receiver comprising:

• a receiver count circuit configured to receive a clock signal and an enable signal and to update a receiving count value;
• and
• an error detection circuit configured to receive a heartbeat signal and the receiving count value, and to generate an error signal in response to the clock signal,
• wherein the error detection circuit generates the error signal when the receiving count value is not equal to a first value upon receipt of the heartbeat signal.

An operating method of a receiver for receiving data, the method comprising:

• receiving a clock signal, an enable signal, and the data;
• updating a receiving count value in response to the enable signal and the clock signal;
• receiving a heartbeat signal, and determining whether the receiving count value is a first value, when the heartbeat signal is received;
• and
• generating an error signal when the receiving count value is not the first value.