# clb-ffsrcemux Fuzzer | |
## CEUSEDMUX | |
Configures whether clock enable (CE) is used or clock always on | |
| CEUSEDMUX | CE | | |
|------------|------------------| | |
| 0 | Always on | | |
| 1 | Controlled | | |
### SRUSEDMUX | |
Configures whether FF can be reset or simply uses D value | |
| SRUSEDMUX | Resettable? | | |
|------------|------------------| | |
| 0 | No | | |
| 1 | Controlled | | |
XXX: How used when SR? | |