Opamp0 switch control
| OA0P_A00 | Opamp0 positive terminal amuxbusa |
| OA0P_A20 | Opamp0 positive terminal P0 |
| OA0P_A30 | Opamp0 positive terminal ctbbus0 |
| OA0M_A11 | Opamp0 negative terminal P1 |
| OA0M_A81 | Opamp0 negative terminal Opamp0 output |
| OA0O_D51 | Opamp0 output sarbus0 (ctbbus2 in CTB) |
| OA0O_D81 | Opamp0 output switch to short 1x with 10x drive |