SBAU171D May 2010 – January 2016 ADS1198 , ADS1298
Configuration Register 2 controls the signal amplitude and frequency of an internally-generated square wave test signal. The primary purpose of this test signal is to verify the functionality of the front-end MUX, the PGA, and the ADC. The test signals may be viewed on the ECG Display tab, as Figure 31 shows. Detailed instructions for using the ECG Display tab are provided in Section 3.5.4.