DSP

What is DSP?

The DSP chip, full name is a digital signal processor, is a microprocessor, especially suitable for the digital signal processing operation. Its main application is to realize various familiar signal processing algorithms quickly in real-time. According to the requirements of digital signal processing, DSP chips generally have the following main features:

(1) One multiplication and one addition can be completed in one instruction cycle;

(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 usually be accessed in two blocks at the same time through an independent data bus;

(4) Hardware support with low overhead or no overhead loop and jump;

(5) Fast interrupt processing and hardware I/O support;

(6) Multiple hardware address generators that operate in a single cycle;

(7) Multiple operations can be executed in parallel;

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