8-bit LFSR

Beginner

00:00

01General Operation

8-bit Fibonacci-type Linear Feedback Shift Register (LFSR). The polynomial x^8+x^6+x^5+x^4+1 defines the feedback taps. The register generates a pseudo-random sequence of 255 distinct values.

The i_load signal loads an initial value. Reset is asynchronous and active-high (initial value: 0x01).

Polynomial: x^8+x^6+x^5+x^4+1 (taps: bits 7, 5, 4, 3)
Priority: reset > load > enable
Reset value: 0x01

02Interface

Signal	Direction	Width	Description
`i_clk`	Input	1 bit	System clock
`i_rst`	Input	1 bit	Synchronous reset active high
`i_en`	Input	1 bit	Enable
`i_load`	Input	1 bit	Seed load
`i_seed`	Input	8 bits	Seed value
`o_data`	Output	8 bits	Current LFSR value

← PWM Generator Moving Average Filter (4 samples) →

Chargement…