An example device includes a generally plate-shaped housing, a display provided on the front side of the housing, analog sticks, an L button, and an R button. The optical relay system is adapted to form a line image at the image plane. The wireless device autonomously changes the timing reference carrier to a second secondary carrier in the second carrier group. 1 boundary scan circuitry, built in self test circuitry, internal scan circuitry, IEEE 1149.