TRANSMISSION UNIT ADOPTING A DIFFERENTIAL VOLTAGE DRIVING SYSTEM, TRANSMISSION UNIT AND RECEIVING UNIT SELECTIVELY ADOPTING A DIFFERENTIAL CURRENT DRIVING SYSTEM, DIFFERENTIAL VOLTAGE DRIVING SYSTEM, AND INTERFACE SYSTEM

摘要

The present invention relates to a transmission and receiving system of a transmission line, and more particularly, to a transmission unit and to a receiving unit which selectively adopt a differential current driving system and a differential voltage driving system in accordance with the condition of the transmission line in a single semiconductor chip to enable efficient data transmission, and which share a common portion to shorten the time taken for design and to reduce the layout area. The present invention also relates to an interface system having the transmission unit and the receiving unit.