LFSR (Linear Feedback Shift Register)

Verilog Coding Exercise · Sequential

A shift register with just enough feedback to look random.

Feeds an XOR of specific "tap" bits back into the shift register's input, producing a long pseudo-random sequence from a small amount of hardware — used in counters, cryptography, and built-in self-test circuits.

ApplicationsPseudo-random pattern generation, cryptography, BIST (built-in self-test) for chip testing.