A high-speed serial data transceiver includes multiple receivers and transmitters for receiving and transmitting multiple analog, serial data signals at multi-gigabit-per-second data rates. In a particular embodiment, an integrated circuit is disclosed which includes a reference current generator adapted to generate a plurality of reference currents. Then, an etch mask layer is deposited on the refractory layer, followed by selective etching of the refractory metal layer with a dry-etch tool with high selectivity to the etch mask layer. This means that the capping panel can be made to be as thin as possible, which in turn reduces weight and material wastage. When transmitting the advertisement to the master device executing the predetermined application, the slave device transmits the advertisement by using previously-set one channel among three channels for advertising.