GE DS200SLCCG1ACC

GE DS200SLCCG1ACC

GE DS200SLCCG1ACC

Fixed point calculation Most DSPs use fixed point calculation instead of floating point calculation. Although the application of DSP must pay great attention to the accuracy of numbers, and using floating-point methods should be much easier, for DSP, affordability is also very important. Fixed point machines are cheaper (and faster) than corresponding floating-point machines. In order to ensure the accuracy of numbers without using floating-point machines, DSP processors support saturation computation, rounding, and shifting in both the instruction set and hardware. 5 specialized addressing modes DSP processors often support specialized addressing modes, which are useful for common signal processing operations and algorithms. For example, module (loop) addressing (useful for implementing digital filter delay lines), bit reverse addressing (useful for FFT). These very specialized addressing modes are not commonly used in GPP and can only be implemented through software. 6. Prediction of Execution Time Most DSP applications (such as cellular phones and modems) are strictly real-time applications, and all processing must be completed within the specified time. This requires programmers to accurately determine how much processing time is required for each sample, or at least know how much time is required in the worst-case scenario. If you plan to use low-cost GPP to complete real-time signal processing tasks, the prediction of execution time may not be a problem. It should be because low-cost GPP has a relatively direct structure and is relatively easy to predict execution time. However, most real-time DSP applications require processing power that low-cost GPPs cannot provide.

IC693CHS392
IC693CHS398
IC693CMM321
IC693CPU331
IC693CPU341
IC693CPU350-BC
IC693CPU363
IC693CPU372
IC693CPU374
IC693DNM200
IC693DNM200-BD
IC693DSM302-RE
IC693MDL231
IC693MDL340