1, large-scale integration.

2. Good stability and high precision.

3. Programmability.

4. High speed performance.

5. Embedability.

6. Convenient interface and integration.

DSP chips usually have the following main characteristics:

(1) One instruction cycle can complete one multiplication and one addition.

(2) The program and data space are separated, and instructions and data can be accessed at the same time.

(3) There is fast RAM on the chip, which can be accessed in two blocks simultaneously through independent data bus.

(4) Hardware supports loop and jump with low or no overhead.

(5) Fast interrupt handling and hardware I/O support.

(6) Having a plurality of hardware address generators operating in a single cycle.

(7) Multiple operations can be performed in parallel.

(8) Support pipeline operation, so that operations such as fetching, decoding and execution can overlap.

Extended data

Application of DSP chip

1, digital signal processing digital filter

There are many practical types of digital filters, which can be roughly divided into finite impulse response type and infinite impulse response type, and can be realized by hardware and software.

2. Fourier transform of digital signal processing

1965, J.W. Cooley and T.W. Tuji first proposed a fast algorithm of discrete Fourier transform, referred to as fast Fourier transform, which was expressed by FFT. Fast algorithm greatly reduces the number of operations of discrete Fourier transform, which makes the realization of digital signal processing possible.

3. Spectrum analysis of digital signal processing.

Digital signal processing is widely used. As far as the sources of signals are concerned, there are communication signal processing, radar signal processing, remote sensing signal processing, control signal processing, biomedical signal processing, geophysical signal processing, vibration signal processing and so on.