Study on Implementation of SCSI Application System Based on SOPC

After analyzing the system architecture and the routine design method of a SCSI controller, one novel design project for the SCSI controller is put forward on the basis of SOPC and 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 routine design method, the new project has better advantages in the integration level, scalability, speed and reliability, as well as capability of making full use of the PLD resources.