DFPAU

DFPAU www.DataSheet4U.com Floating Point Arithmetic Coprocessor ver 2.05 OVERVIEW DFPAU is a technology independent design that can be implemented in a variety of process technologies. DFPAU is a Floating Point Arithmetic Coprocessor, designed to assist CPU in performing the floating point arithmetic computations. DFPAU directly replaces C software functions, by equivalent, very fast hardware operations, which significantly accelerate system performance. It doesn’t require any programming, so it also doesn’t require any modifications made in the main software. Everything is done automatically during software compilation by the DFPAU C driver. DFPAU 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 together with the DFPAU package DFPAU uses the specialized algorithms to compute arithmetic functions. It supports addition, subtraction, multiplication, division, square root, comparison, absolute value, and change sign of a number. The input numbers format is according to IEEE-754 standard single precision real numbers. DFPAU is prepared to use with 8-, 16- and 32-bit processors. Trigonometric functions are supported indirectly, because they are computed as set of add, multiply and divide operations by software subroutines. Each floating point function can be turned on/off at configuration level providing the flexible scalability of DFPAU module. It allows save silic...