Patent ID: 6943605

Claim:
An apparatus, comprising: a Double-Edge-Triggered Flip-Flop (DETFF), including a first and a second latching element, to receive a DETFF input bit along with a DETFF clock signal and to provide a DETFF output bit; a first scan device, associated with the first latching element, to receive a first scan device input bit and to provide a first scan device output bit, wherein the first latching element comprises a dual-port latching element and is to receive: a first input bit representing the DETFF input bit, a first clock signal associated with the first input bit and representing the DETFF clock signal, a second input bit representing the first scan device output bit, and a second clock signal associated with the second input bit; and a second scan device, associated with the second latching element, to receive a second scan device input bit and to provide a second scan device output bit.