SCT input register
| AIN0 | Real-time status of input 0. |
| AIN1 | Real-time status of input 1. |
| AIN2 | Real-time status of input 2. |
| AIN3 | Real-time status of input 3. |
| AIN4 | Real-time status of input 4. |
| AIN5 | Real-time status of input 5. |
| AIN6 | Real-time status of input 6. |
| AIN7 | Real-time status of input 7. |
| RESERVED | Reserved. |
| SIN0 | Input 0 state synchronized to the SCT clock. |
| SIN1 | Input 1 state synchronized to the SCT clock. |
| SIN2 | Input 2 state synchronized to the SCT clock. |
| SIN3 | Input 3 state synchronized to the SCT clock. |
| SIN4 | Input 4 state synchronized to the SCT clock. |
| SIN5 | Input 5 state synchronized to the SCT clock. |
| SIN6 | Input 6 state synchronized to the SCT clock. |
| SIN7 | Input 7 state synchronized to the SCT clock. |
| RESERVED | Reserved |