Beyond Semi Introduces 32-bit BA20 Core with Cortex M4 Performance Efficiency, and Cortex M0+ Silicon Area

Beyond Semiconductor and CAST have jointly announced BA20 32-bit embedded processor core with PipelineZero Architecture (zero-stage execution pipeline), that rivals with ARM Cortex A4 in terms of performance per MHz, while using about the same silicon area as an ARM Cortex M0+. which could be critical for applications such as wearables, sensors, and wireless communication, that may require both a small footprint and high performance efficiency.

Beyond Semi BA20 Block Diagram

The company’s PipelineZero micro-archirtecture can execute one instruction per cycle, hence saving energy by doing more in less time, and by operating at lower clock rates.

Key features listed for BA20 IP core:

  • PipelineZero architecture for high performance efficiency with tiny silicon footprint
    • 3.04 DMIPs/MHz (vs ARM Cortex M4: 1.25 DMIPS/MHz)
    • 3.41 Coremarks/MHz (vs ARM Cortex M4: 3.40 CoreMarks/MHz)
    • 2µW/MHz (vs ARM Cortex M0+: 3µW/MHz)
    • 10K gates (0.01mm2) in 9-track 40G (vs 0.009mm2 for ARM Cortex M0+)
  • BA2 ISA Extreme Code Density for less instruction fetching energy usage
  • Interconnect – 32-bit wide AMBA AXI4-lite bus
  • Advanced power management
    • Dynamic clock gating and power shut-off of unused units
    • Software- and hardware-controlled clock frequency
    • Wake-up on tick timer or external interrupt
  • Optional Processor Units
    • Programmable Vectored Interrupt Controller Unit
    • Memory Protection Unit
    • Timer Unit
    • Debug Unit
      • MDB support
      • Trace port support
    • ROM Patching Unit
    • IEEE-754 compliant Floating Point Unit
    • Hardware Multiplier/Divider
  • Peripherals include GPIO, UART, Real-Time Clock, Timers, I2C, and SPI
  • Memory controllers, interconnects, and more

Beyond_BA20_vs_ARM_Cortex_M BA20 Processor IP Core, and peripherals IP are available now in RTL source code (Verilog) or FPGA netlists, and BeyondStudio Eclipse-based IDE for Windows or Linux can be used for software development. The company can also provide reference design boards with JTAG and serial debug/trace for both CPU and system, but no details have been provided about these hardware platforms.

As with all Beyond Semi processor Core, BA20 is royalty-free, and only a one-time license needs to be purchased. Further details can be found on Beyond Semi BA20 PilelineZero Embedded Processor page.

Share this:

Support CNX Software! Donate via PayPal or cryptocurrencies, become a Patron on Patreon, or buy review samples

Notify of
The comment form collects your name, email and content to allow us keep track of the comments placed on the website. Please read and accept our website Terms and Privacy Policy to post a comment.
6 years ago

Looks interesting, thanks.

6 years ago

doesn’t it sound too good to be true?

6 years ago

Not really, this is not ARM, it looks like this is a completely different design and instruction set done from scratch, more modern. They are sacrificing compatibility and established standards for performance and efficiency.