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DFPMU Schematic ( PDF Datasheet ) - Digital Core Design

Teilenummer DFPMU
Beschreibung Floating Point Coprocessor
Hersteller Digital Core Design
Logo Digital Core Design Logo 




Gesamt 5 Seiten
DFPMU Datasheet, Funktion
www.DataSheet4U.com
DFPMU
Floating Point Coprocessor
ver 2.05
OVERVIEW
DFPMU is a Floating Point Coprocessor, de-
signed to assist CPU in performing the float-
ing point mathematic computations. DFPMU
directly replaces C software functions, by
equivalent, very fast hardware operations,
which significantly accelerate system per-
formance. It doesn’t require any program-
ming, so it also doesn’t require any modifica-
tions made in the main software. Everything
is done automatically during software compi-
lation by the DFPMU C driver.
DFPMU was designed to operate with DCD’s
DP8051, but can also operate with any other
8-, 16- and 32-bit processor. Drivers for all
popular 8051 C compilers are delivered to-
gether with the DFPMU package.
DFPMU uses the specialized CORDIC and
standard algorithms to compute math func-
tions. It supports addition, subtraction, mul-
tiplication, division, square root, compari-
son, absolute value, change sign of a number
and trigonometric functions: sine, cosine,
tangent and arctangent. It has built-in con-
version instructions from integer type to float-
ing point type and vice versa. The input num-
bers format is according to IEEE-754 stan-
dard. DFPMU supports single precision real
numbers, 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 al-
lows save silicon space and provides exact
configuration required by certain application.
All trademarks mentioned in this document
are trademarks of their respective owners.
DFPMU is a technology independent design
that can be implemented in a variety of proc-
ess technologies.
APPLICATIONS
Math coprocessors
DSP algorithms
Embedded arithmetic coprocessor
Fast data processing & control
KEY FEATURES
Direct replacement for C float software
functions such as: +, -, *, /,==, !=,>=, <=, <,
>
Configurability of all available functions
C interface supplied for all popular compil-
ers: GNU C/C++, 8051 compilers
No programming required
IEEE-754 Single precision real format
support – float type
16-bit word and 32-bit short integers for-
mat supported – integer types
Flexible arguments and result registers
location
Performs the following functions:
FADD, FSUB – addition, subtraction
FMUL, FDIV – multiplication, division
FSQRT
– square root
FCHS, FABS – change of sign, absolute
value
http://www.DigitalCoreDesign.com
http://www.dcd.pl
Copyright 1999-2007 DCD – Digital Core Design. All Rights Reserved.





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