A digital storage element (e.g., a flip-flop or a latch) comprise a master
transparent latch that receives functional data from a data input port
and scan data from a scan input port and a slave transparent latch
coupled to the master transparent latch. The slave transparent latch
comprises dedicated functional data and scan data output ports. A clock
gating element is also included that gates off a clock to the slave
latch, and not the master transparent latch, based on an enable signal
that is asserted to disable use of the digital storage element.