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Example timings for various functions on a Lucent DSP32C processor running at 80 MHz are as follows:
| Function | Description | Time |
| FFT1k | 1024 point complex FFT | 2.11 ms |
| FFTa | 1024 point FFT on real data only | 1.31 ms |
| iFFT | 1024 point inverse FFT | 2.84 ms |
| FIR | FIR filter (5 coefficients) | 1.74 us |
| FIRc | complex FIR filter (5 coefficients) | 4.83 us |
| IIRd | IIR filter (direct form II cascade of 4 second order sections with 5 multiplies/section) | 1.78 us |
| osc | return a sample from a sinusoidal oscillator | 0.51 us |
| tone | return a sample from a tone pair | 0.68 us |
| divf | fast (but less accurate) divide | 0.95 us |
Return to DSP32C processor diagram
Last updated: 17th December 1997
File http://www.bores.com/chips/32_time.htm