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


GPUs & Peripherals
See Graphics &
  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 Compression
LJPEG Encoder
LJPEG Decoder
JPEG-LS Encoder

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

Graphics Processors
Nema Embedded GPU
ThinkVG vector GPU
2D/2.5D Graphic Accelerator

Display Controllers
Multilayer LCD Display Processor

Device Controllers
smart card reader

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

AMBA Infrastructure
AMBA Infrastructure Cores
AHB 32-bit DMA

Interconnect Peripherals

See Interconnect Cores >

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

• Receiver

Ethernet MAC
• 1G eMAC Controller

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

High Performance 32-bit CPU

  • 2.53 DMIPS/MHz
  • 2.93 CoreMarks/MHZ
  • Variable length (16/24/32/48 bits) instruction encoding
  • Single-cycle execution on most instructions
  • Fast and precise internal interrupt response
  • Custom user instructions

Small Silicon Footprint & Low Power Consumption

  • Industry-leading code density
    • Compact code minimizes instruction memory area & power
    • 32-bit architecture reduces power-draining memory accesses
  • 15k gates and low as 0.05mW/MHz on 90nm

Fast & Flexible Memory Access

  • Harvard-style, separate Instructions and Data caches
  • Tightly coupled Quick Memory for fast and deterministic access to code and/or data

Efficient Power Management

  • Further reduces power consumption by 2x to 100x using dynamic clock gating for individual units
  • Software controlled clock frequency in slow and idle modes
  • Interrupt wake-up in doze and sleep modes

Advanced Debug Capability

  • Conventional target-debug agent with a debug exception handler
  • Non-intrusive debug/trace for both the CPU and the system
  • Complex chained watchpoint and breakpoint conditions
  • Uses industry standard Amontec JTAGKey USB to JTAG interface

Integrated Peripherals

  • Standard:32 bit tick timer, programmable interrupt controller with 32 maskable interrupt sources

Optional Peripherals

  • AMBA bus infrastructure
  • Microcontroller peripherals such as GPIO. UART, Real-Time Clock, and Timers
  • Serial communication cores such as I2C and SPI
  • Memory controllers and more

Easy Software Development

  • Eclipse IDE for Windows, Linux
  • ANSI C/C++ compiler, debugger, linker, assembler, & utilities
  • Architectural simulator
  • Ported libraries & RTOS

Contact Sales
Call or click.
+1 201.391.8300

PDF Datasheets

Altera, Xilinx


Additional peripherals may be added before delivery of the core.

A hardware reference design board is available.

CAST Integration Services are available to help integrate this core with other CAST IP cores.

Try It Yourself

evaluate the BA22-DE 32-bit processor IP core from CAST with the Talos Eval KitEvaluate the BA22's features and performance in your own environment with the Talos Series Evalation Kit.

Related Products

The BA2x™ Processor Family includes a set of royalty-free, pre-configured products intended for different applications:


  • BA2x-AXI-PP pre-integrated peripherals platform for the AMBA3 AXI bus.
  • BA2x-AHB-PP pre-integrated peripherals platform for the AMBA2 AHB/APB buses.

Related Information



This popular December 2012 webinar discussed looking beyond published CPU efficiency stats in choosing a processor core for a low-power system. See the webinar recording:
CPU Subsystem Total Power Consumption: Understanding the Factors and Selecting the Best IP

News Releases


CAST: feeling the DesignCon vibe
EDACafe, Peggy Aycinena, 1/30/2013

DesignCon 2013 Yields IP, RF, DoE, and Mind Surprises
IP Insider, John Blyler, 2/1/2013

CAST announces royalty-free BA22 32-bit RISC IP
EDN Network, Ron Wilson, 8/3/2011

Blog Posts

Customer Experiences

BA22 processor user inSilica"We went from licensing the BA22 processor [to] tape-out in just 5 months," said Ram Rangarajan, VP of Imaging Products at inSilica. "... Despite our stringent requirements, integration and software development was straightforward. "
inSilica Announces Tape-Out of Its Next Generation Camera Processor With BA22 Embedded RISC processor, Dec. 10, 2009

32-bit RISC ProcessorIP CoreBA22-CEBA22 Cache-Enabled Embedded Processor

Implements a 32-bit processor for deeply embedded applications that use off-chip instruction and data memories and that may need to run a real-time operating system (RTOS). Part of the royalty-free BA22 family, this processor core is extremely competitive in terms of high performance and low power consumption, and has best-in-class code density.

The core has Instruction and Data Caches, optional dedicated buses for tightly coupled on-chip Instruction and Data memories, and an AMBA® AHB™ or Wishbone system bus interface. It includes up to 32 general purpose registers (GPRs), a tick-timer (TTimer), a programmable interrupt controller (PIC), an advanced power management unit (PMU), and an optional debug unit (DBGU). Additional microcontroller peripherals may be ordered for pre-integration and delivery with the core, individually or in a complete platform. IP Integration Services are also available to help integrate the processor with memory controllers, image compression, or other CAST IP cores.

The processor’s BA2 instruction set is relatively simple and extremely compact. Programing is facilitated with the included C/C++ tool chain, Eclipse IDE, architectural simulator, and ported C libraries.

The BA22-CE synthesizes to 25k gates, can be clocked with 400MHz in a 65nm technology, and can provide as many as 2.53 DMIPS/MHz. The core is delivered, with a complete software development environment under Eclipse IDE, and its users get access to already ported real time operating systems (eCOS and uClinux).

The BA22 family of processors has been designed for easy reuse and integration, has been rigorously verified, and is production proven. Contact CAST Sales for details.

BA22-CE reference designs have been evaluated in a variety of technologies. See representative implementation results (in a new pop-up window):

ASIC numbersAltera numbersXilinx numbers


Block Diagram

BA22-CE Block Diagram

Processor Description

The BA22 family uses a 32-bit processor architecture designed for high performance with great silicon and power efficiency.

The highly configurable design may include caches and memory management units, enhanced arithmetic processing capabilities such as a divider and floating point unit, a sophisticated power management unit, and an interactive, JTAG-based debug capability.

The BA22-CE is one pre-configured version of the BA22, targeted for a variety of deeply embedded applications.

BA22 processors are also designed for quick, efficient software development. The BA2 instruction set they use provides the highest code density in its class, without compromises on performance, ease of use, or scalability. It features:

The BA22 has already proven itself in multiple production designs.

Support and Services

The core as delivered is warranted against defects for 90 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.

IP Integration Services are also available to help minimize time to market for BA22-based systems.


The core is available for ASICs in synthesizable HDL, and includes everything required for successful implementation:

A reference design board running Linux and FPGA versions of the core are also available; contact CAST Sales for information.

Comparing BA2x Family Processor Cores