In one embodiment, an apparatus includes a system pulse latch to generate
at least one system latch signal in response to a data input signal and a
pulsed system clock signal; a shadow pulse latch to generate at least one
shadow latch signal in response to the data input signal and the pulsed
system clock signal; and an output joining circuit, coupled to the system
pulse latch and the shadow pulse latch, to provide a data output signal
in response to the at least one system latch signal and the at least one
shadow latch signal.