Enable CTI Channel Gate register
| CTIGATEEN0 | Enable ctichout0. Set to 0 to disable channel propagation. |
| CTIGATEEN1 | Enable ctichout1. Set to 0 to disable channel propagation. |
| CTIGATEEN2 | Enable ctichout2. Set to 0 to disable channel propagation. |
| CTIGATEEN3 | Enable ctichout3. Set to 0 to disable channel propagation. |