A reference signal input of a delay locked loop is connected to receive a reference
clock. The delay locked loop provides a drive clock that drives a clock distribution
tree. One of the endpoints of the clock distribution tree is connected to a feedback
reference of the delay locked loop. By using one the endpoints as a feedback loop
to the delay locked loop the signal received at components attached to the endpoints
of the distribution tree can be synchronized to the reference input received at
the delay locked loop.