| typedef void(* Ucs_Lld_StartCb_t)(Ucs_Lld_Api_t *api_ptr, void *inst_ptr, void *lld_user_ptr) | 
Notifies the LLD to start transmitting and receiving messages.
| api_ptr | Reference to UNICENS LLD interface | 
| inst_ptr | Reference to internal UNICENS handler | 
| lld_user_ptr | User defined pointer which is provided in Ucs_Lld_Callbacks_t structure. |