8-bit-LFSR

An 8 bit Linear-Feedback Shift Register using OpenLane flow and Skywater130 (RTL to GDS).

Sebastian Castro

Contents

• Contents
• Project Description
• Waveform
• GDS

Project Description

An LFSR is a linear shift-reg with a feedback loop with the characteristic to produce a pseudo random sequence of bits. It's input is driven by a series of taps [7, 6, 5, 4] through a XOR chain. The possible patern count in this 8-bit LFSR is 2⁸-1.

Waveform

Here you can find the waveform for my testbench.

GDS

Magic and GDS3D (looks cool) tools for layout visualization of GDS file created by OpenLane flow.