关键词: SPI, APB总线, 多样化, 复用

Abstract: SPI owns the characters of high-speed transfer and flexible configuration performances,which results in its widely use in expanding exterior devices and data communication.In order to satisfy complex application demands,a diversified SPI with a reusable shifting register is designed based on APB bus in this paper.What's more,it is implemented by taking advantage of Verilog HDL.The simulation results indicate that the designed SPI is capable of operating in a variety of communication modes and formats.Meanwhile,it can also meetthe requirements stability.

Key words: SPI, APBbus, diversified, reusable