Electronic apparatus, method of transmitting data asynchronously and optical image stabilization module

A method of transmitting data asynchronously comprising:

• transmitting, by a control unit operated according to a main clock signal, a protocol for a data transmission;
• setting, by a circuit unit operated according to a first clock signal asynchronous with the main clock signal, a data effective section and performing a transmission check according to the protocol;
• setting, by the circuit unit, a flag in a period of the clock signal in which a data transmission request from the control unit is input;
• and
• checking for a duplicate data request based on the flag.

An optical image stabilization module comprising:

• a control unit configured to request a data transmission according to a main clock signal;
• and
• a sensor module configured to perform a sensing operation according to a first clock signal, and to transmit sensing data corresponding to the data transmission request to the control unit;
• wherein the first clock signal is asynchronous with the main clock signal, and the sensor module is further configured to set a flag during a period of the first clock signal in which the data transmission request is input to check for a duplicate data request.