The DSP controller is a DSP chip developed for industrial control. It is a 32-bit high-performance microcontroller. This book first outlines the development process and characteristics of the DSP controller, then introduces the overall structure of the DSP controller, especially the implementation of the multi-group bus technology and parallel mechanism of the DSP controller, and then introduces the structure, principle and use of on-chip and on-chip peripherals respectively. method, and the instruction system of the DSP controller; finally, two application examples are given.