PM0014 datasheet(7/46 Pages) STMICROELECTRONICS

No de pièce	PM0014

Description	General-purpose DSP library

PDF	46 Pages

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Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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PM0014

ST10-DSP library benchmarks

7/46

ST10-DSP library benchmarks

2.1

Performance considerations

The performance figures reported underneath have been obtained with all operands

mapped into ST10 Dual Port RAM (DPRAM). Please note that different memory mapping

will lead to longer execution time and this could explain differences between the times

reported here and the times on other applications. (for details see "ST10-DSP

programming" application note).

2.2

Filter functions

The following table illustrates the ST10-DSP capabilities in filtering functions:

Table 2.

ST10-DSP capabilities

Function

Code size (byte)

Number of Instruction cycles

FIR 16 *16 real

30 + samp *(12 + coef)

FIR 16* 32 real

130

34 + samp *(16 + 2*coef)

FIR 32* 32 real

194

34 + samp *(20 + 4*coef)

IIR direct 2

130

36 + samp *(17 + coef)

IIR cascaded biquad cells

136

34 + samp *(16 + 15*coef)

PM0014 Fiches technique(PDF) 7 Page - STMicroelectronics