To enable this mode, the serial registers must first be reset to the default values and the RESET terminal must be kept low. SEN, SDATA, and SCLK function as serial interface terminals in this mode and can be used to access the internal registers of the ADC. The registers can be reset either by applying a pulse on the RESET terminal or by setting the RESET bit high. The Serial Register Map section describes the register programming and the register reset process in more detail.