Compression and De-compressor using LZW algorithm

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Open-Silicon

IP Name

LZW Compressor and De-Compressor

Provider

Open-Silicon

Description

Compression and De-compressor using LZW algorithm

Category

IP Catalog : Digital Core IP : Controllers : Storage

Portability

ASIC, FPGA

Process Node

all

Type

Soft IP

Maturity

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Overview

The LZW compressor encodes strings by reference to a dynamically generated dictionary. It exploits the redundancy of data for efficient compression by compressing uses up to 13 bit codewords. Each entry in the dictionary is a string and it is initialized with every possible byte by storing the byte in a 16384 entry two way skewed cache structure and as each entry is a 25 bit value it creates the hash table with 51200 bytes.

Features

Compression enable/disable

LZW compression/decompression

Variable length code words (up to 13 bits)

Automatic compression abort when output compressed size is greater than the input data size

32 bit data paths

Market Category

Others

Datasheet

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Protocols

AMBA 2.0 AHB

Gate Count

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QIP Rating

This IP is not yet QIP rated.

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