Design of the SCSI Application System Based on NIOS

One novel design for SCSI controller is put forward on the basis of SOPC and the soft processor IP core technology.The NIOS soft processor IP core is chosen as the center controller in the application system.Except for NIOS processor,most of the peripherals around the SCSI module,including DMA data channel and data cache control logic,are integrated into one FPGA chip.Comparing with the traditional design method,the new design has more advantages in the integration,scalability,speed and reliability,and can make full use of the FLD resources.