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PM0014 数据表(PDF) 7 Page - STMicroelectronics |
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PM0014 数据表(HTML) 7 Page - STMicroelectronics |
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7 / 46 page  PM0014 ST10-DSP library benchmarks 7/46 2 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 88 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) |
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