Our family of microcontroller and microprocessor related cores includes capable and competitive 32-bit BA22s and the best-available set of proven 8051s.

32-bit Processors
BA2x Family Overview

Application Processors
BA25 Adv. App. Processor
BA22 Basic App. Processor

Cache-Enabled Embedded
BA22 Cache-Embedded

Embedded Processors
BA22 Deeply Embedded
BA21 Low Power
BA20 PipelineZero

Peripheral Platforms
& AMBA Infrastructure

BA2x AHB Platform
BA2x AXI Platform


See Peripherals Cores >

These video and image compression cores and subsystems help you handle video compression for demanding, high-quality applications or choose the best type of image compression for your specific system.

JPEG 2000
J2K Platform

Lossless Image Compression
LJPEG Encoder
LJPEG Decoder
JPEG-LS Encoder

Lossless Data Compression
GZIP Compressor
GZIP Reference Design
GUNZIP Decompressor

Complement or replace system processors with GPUs and easily integrate memories, peripherals, and hardware networking stacks into SoCs.

Display Controllers

NOR Flash Controllers
Serial/SPI NOR Flash
Parallel NOR Flash

Legacy Peripherals
DMA Controllers
8237, 82380
16450S, 16550S, 16750S

AMBA Infrastructure
AMBA Infrastructure Cores
Multi-Channel DMA

Interconnect Peripherals

See Interconnect Cores >

Quickly complete the standard parts of your SoC with these memory and peripheral controllers, interfaces, and interconnect cores.

Ethernet MAC
• 1G eMAC Controller

Network Stacks
1G/10G UDP/IP stack
Hardware RTP Stack for H.264
• MPEG Transport Stream Encapsulator

Data Link Controllers

PCI — Target
32-bit multi
PCI — Master
32-bit multi
PCI — Host Bridge
32 bit
32 bit - AHB
32 bit & device - AHB

These encryption cores make it easy to build security into a variety of systems.

DES single
DES triple

  • Conforms to the spatial (sequential) lossless encoding mode (SOF3) of the ISO/IEC 10918-1 standard (CCITT T81 recommendation).
  • Standalone operation.
    • ISO/IEC 10918-1 JPEG stream input.
    • Decoded pixel samples output.
  • Self-programmable through the standard JPEG markers.
    • Programmable image dimensions.
    • Full range sample precision support (2 to 16 bits per sample)
    • Up to four stream-programmable Huffman tables.
    • Programmable Restart Interval.
    • Programmable Point Transform function.
    • Header errors catch-up features.
  • Compact, high-performance architecture.
    • 36K gates achieving 500 MSamples/sec (0.09µ ASIC ) under typical process and operating conditions.
    • Also fits low-end FPGA devices (see FPGA version datasheets).
  • Robust and simple to use
    • General purpose, fully stallable, streaming I/O interfaces.

Limitations with respect to the ISO/IEC 10918-1 standard:

  • Up to three image-components are supported (Nf field of the SOF3 marker segment = 1 or 2 or 3).
  • Single scan encoding (only one SOS marker segment, with Ns field = Nf).
  • No DNL marker support (Y field of the SOF3 marker segment > 0).
  • Fixed parameters.
    • No sub-sampling (Hi and Vi fields of the SOF3 marker segment = 1).
    • Prediction function is fixed to the left-hand predictor, predictor 1. (Ss field of SOS marker segment = 1).

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PDF Datasheets

Altera, Xilinx


AHB Compression Core Bus Bridge

Related Products


  • JPEGLS-E JPEG-LS Compression Encoder
  • LJPEG-E Lossless JPEG Compression Encoder
  • CCBB-AHB AHB Compression Core Bus Bridge – adds an AHB interface to the LJPEG-D core

Validated for Mentor Graphics Presicision FPGA SynthesisValidated for Precision™ FPGA Synthesis



See the JPEG entry at Wikipedia.

Blog Posts

Customer Applications

Leaf Imaging Ltd (formerly offered by Kodak) uses this core for fast, full-fidelity photo capture in their high-end Leaf® Aptus digital camera backs for professional photographers.

LJPEG-D Lossless JPEG Compression Decoder Core

The LJPEG-D core implements a Lossless JPEG (LJPEG) decoder in a compact, high-performance, stand-alone package ideal for applications where bit-by-bit accurate reproduction of an image is essential.

The LJPEG-D decodes images that conform to the spatial (sequential) lossless encoding mode (SOF3) of the ISO/IEC 10918-1 standard (CCITT T.81 recommendation). Rather than the Discrete Cosine Transform (DCT) functions used for lossy JPEG compression - which can introduce round-off errors - the lossless part of the standard employs a reversible predictor function. The LJPEG-D core can thus decode images with no information loss, and requires a smaller physical implementation than what necessary for lossy JPEG image decoding.

Evaluation designs show that the core requires just 36K gates in an ASIC and that it fits in a variety of low-cost FPGA devices. Its heavily optimized architecture also enables very high performance, reaching 500 MSamples/sec on 0.09µ process (under typical process and operating conditions).

The LJPEG-D is a fully synchronous, strictly positive-edge design with no internal three-state buffers. Comprehensive documentation and a complete verification environment - including a bit-accurate model - help designers integrate and verify the core.

See representative implementation results (each in a new pop-up window):

ASIC numbers Altera numbers Xilinx numbers


The LJPEG-D provides a fast, economical solution whenever lossless image compression is essential, including applications such as:

Block Diagram

LJPEG-D Block Diagram


The LJPEG-D core as delivered is warranted against defects for ninety days from purchase. Thirty days of phone and email technical support are included, starting with the first interaction. Additional maintenance and support options are available.


The LJPEG-D core has been verified through extensive simulation using a large set of test vectors and reference results.


The core is available in ASIC (synthesizable HDL) and FPGA (netlist) forms, and includes everything required for successful implementation:

Comparing Still Image Compression Cores

Image Compression Cores Comparison Baseline JPEG
Encoder, Decoder
Extended JPEG
Encoder, Decoder;
4K/UTH Encoder
Lossless JPEG
JPEG 2000
Lossy compression included included not supported1 not supported1 included
Numerically lossless compression not supported not supported included included included
Lossy compression efficiency very good very good excellent
Lossless compression efficiency good excellent excellent
Maximum bits per sample 8 12 16 16 16
Grayscale included included included included included
Color included included included included included
Rate control optional optional not supported not supported included
Multiple quality layers not supported not supported not supported not supported optional
Region of interest not supported not supported not supported not supported optional
Standalone CPU-less operation included included included included included
Requires external memory2 no no no no yes
Silicon requirements low low very low low high

included= Supported   optional= Optional   not supported= Not Supported   – = Not Applicable


1) Near-lossless function(s) available.
2) Typical use case.




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