Apparatus and method for bus interface for optical module

The present invention discloses a bus interface unit and method for matching the optical module. The present invention relates to an interface device connected to a predetermined bus, to accept a portion of the digital data and control signals transmitted on the bus by executing a predetermined control for interfacing to the bus as the expansion device extension for the data and control signals in the optical matching module and a light junction module including a receiver for converting an optical signal transmitter and the input to convert the bus matching unit, a digital signal and outputting the digital data in the device and the control signal to the bus to an optical signal to output to a digital signal a predetermined delay to the digital signal to the signal exchanged between the bus mating section and the light matching module using the signal containing the basic synchronous clock for the operation of the predetermined time and the bus takes to convert an optical signal or an optical signal to a digital signal It characterized in that it comprises a control unit applying the matching time. According to the present invention, by a signal indicating that when writing data over the optical module interface for an optical module interface to a given bus that I use the data driven by delaying by a predetermined time, the digital signal and the optical signal of the optical module interface to be able to easily match the optical module on the system bus to be used to be able to overcome the delays that can occur is because the conversion is greatly improved convenience between.