The Lattice Semiconductor MachXO5™-NX LFMXO5-55TD (also referred to as MachXO5-NX-55TD or MachXO5-55TD) soft boundary-scan (BSCAN) reference design enables boundary scan testing through a soft JTAG interface to enhance device security, external access to the hardware JTAG port is disabled. Therefore, board-level boundary scan testing must be performed using the soft JTAG boundary-scan IP core.