# Clocking.HBus.NetRefSourceNetwork

Specifies the trunk used to drive the NETREF timing signal on the CT bus.

For more information about setting up CT bus clocking and about the rules and restrictions that apply to setting up clocking with CG 6565E boards, refer to Configuring board clocking.

#### Syntax

Clocking.HBus.NetRefSourceNetwork = trunk_number

#### Access

Read/Write

#### Type

Integer

#### Default

1

#### Allowed values

1 to 8 (1-based trunk number)

#### Example

Clocking.HBus.NetRefSourceNetwork = 1

#### Details

You must specify a value with this keyword when the Clocking.HBus.NetRefSource keyword is set to NETWORK. If the Clocking.HBus.NetRefSource keyword is not set to NETWORK, this keyword is ignored.

#### See also

Clocking.HBus.NetRefSpeed