Neuromorphic data processing system based on SPI bus

The invention relates to the technical field of integrated circuits and neural networks, in particular to a neuromorphic data processing system based on an SPI (Serial Peripheral Interface) bus. According to the neuromorphic data processing system based on the SPI bus, cooperative work of multiple internal architectures is achieved through the SPI protocol with the adjustable data bit width, compact design is adopted, neuron parameters are stored out of a chip, the overhead and power consumption of on-chip storage are effectively reduced, and the system has the advantages of being simple in structure and convenient to use. Rich instruction packets and highly flexible and configurable neurons are designed for the architecture, the configuration of the network-on-chip can be easily completed, a large amount of register overhead in the network-on-chip is effectively reduced by adopting a register multiplexing technology, a router is used for transmitting information between cores, and the reliability of data is