OPAMP2 control/status register
| OPAEN | Operational amplifier Enable  |  
| OPALPM | Operational amplifier Low Power Mode  |  
| OPAMODE | Operational amplifier PGA mode  |  
| PGA_GAIN | Operational amplifier Programmable amplifier gain value  |  
| VM_SEL | Inverting input selection  |  
| VP_SEL | Non inverted input selection  |  
| CALON | Calibration mode enabled  |  
| CALSEL | Calibration selection  |  
| USERTRIM | allows to switch from AOP offset trimmed values to AOP offset  |  
| CALOUT | Operational amplifier calibration output  |