Timothy WheelerPaul S. GrahamBrent E. NelsonBrad L. HutchingsUsing Design-Level Scan to Improve FPGA Design Observability and Controllability for Functional Verification.483-4922001conf/fpl/2001FPLhttps://doi.org/10.1007/3-540-44687-7_50db/conf/fpl/fpl2001.html#WheelerGNH01