Embedded Target for Texas Instruments C6000 DSPs

Reciprocal

Compute the fractional and exponential portions of the reciprocal of a real input signal

Library

C62x DSP Library--Math and Matrices

Description

The Reciprocal block computes the fractional (F) and exponential (E) portions of the reciprocal of a real Q.15 input, such that the reciprocal of the input is F*(2^E). The fraction is Q.15 and the exponent is a 16-bit signed integer.

The Reciprocal block supports both continuous and discrete sample times. This block also supports both little-endian and big-endian code generation.

Dialog Box

Algorithm

In simulation, the Reciprocal block is equivalent to the TMS320C62x DSP Library assembly code function DSP_recip16. During code generation, this block calls the DSP_recip16 routine to produce optimized code.

Real IIR

Symmetric Real FIR