The domain name must be the name of an existing domain.
The clock frequency must be a positive decimal number. Specifying the unit as part of the frequency value is optional. You must enter a space between the frequency value and the unit. You set the clock frequency only for clock domains.
The data frequency must be a positive decimal number. Specifying the unit as part of the data frequency value is optional. You must enter a space between the data frequency value and the unit.
