A method is provided for performing a self-test on a memory device in a test mode, where the memory device includes a universal flash storage link layer and a UFS physical layer having a transmitting unit and a receiving unit. PGZO encoding is performed on the address bits of the operands. The remote engine starter and the vehicle antitheft device are connected to each other through a communication line. The temperature dependent voltage source can be a Proportional To Absolute Temperature device. The adaptation functions can be shut off when adequate signal equalization has been achieve, thus saving power.