New improved DFPMU Floating Point Coprocessor.

20-April-2006 - the Intellectual Property (IP) provider - Digital Core Design today has announced the release of a new - improved DFPMU - Floating Point Coprocessor.

The DFPMU is a Floating Point Coprocessor, designed to assist CPU in performing the floating point mathematical computations. The DFPMU directly replaces C software functions, by equivalent, very fast hardware operations, which significantly accelerate system performance. It neither doesn't require any programming, nor modifications made in main software. Everything is done automatically during software compilation by the DFPMU C Driver.

DFPMU was designed to operate with DCD's DP8051/DP80390 microcontrollers, but can also operate with any other 8-, 16- and 32-bit processor. Drivers for all popular 8051 C compilers are delivered together with the DFPMU package.

DFPMU uses the specialized CORDIC and standard algorithms to compute math functions.

The DFPMU executes 15 operations in such groups as:

  • arithmetic functions,
  • trigonometric functions,
  • comparison functions,
  • data conversion.


It supports addition, subtraction, multiplication, division, square root, comparison and trigonometric functions: sine, cosine, tangent and arctangent. It has built-in conversion instructions from integer type to floating point type and vice versa. The input numbers format is according to IEEE-754 standard. DFPMU supports single precision real numbers, 8-bit, 16-bit and 32-bit integers.

Each floating point function can be turned on/off at configuration level providing the flexible scalability of DFPMU module. It allows to save silicon space and provides exact configuration required by a certain application. DFPMU is a technology independent design that can be implemented in a variety of process technologies. The DFPMU can improve the 8051 based system performance up to 162 times, compared to the same application, running on the standard 80C51, without coprocessor.

New DFPMU can be used in such applications as:
  • math coprocessors
  • DSP algorithms
  • embedded arithmetic coprocessor
  • fast data processing & control.


For more information please see DCD web site.




About Digital Core Design


DCD is a private Intellectual Property (IP) Core provider and System-on-Chip (SoC) design house, an expert in IP cores architecture improvements. DCD sells its products and services directly and through its global distribution network. DCD offers VHDL and Verilog high performance and synthesizable IP cores for a speed optimized 8-, 16- and 32-bit processors, peripherals, serial interfaces, floating point arithmetic units and coprocessors. The functionality of IP solutions offered by DCD were up to date appreciated by over 200 licenses sold to over 150 customers worldwide, such as: INTEL, SIEMENS, PHILIPS, TOYOTA, MAXIM, RAYTHEON, OSRAM, GENERAL ELECTRIC, FARADAY, SAGEM, FLEXTRONICS and GOODRICH. DCD also became a member of first-class branch partner programs as: AMPP of ALTERA, AllianceCORE of XILINX, ispLeverCORE Connection of LATTICE and IP Catalyst of SYNOPSYS. For more information, please visit: www.dcd.pl.