IP Design Of Radiation Resistant 1394 Bus Controller

1394 bus is a kind of external high-speed serial bus standard,its transmission rate in the occasion of the large capacity data real-time transmission has a broad application prospect,And has low cost,high speed,small foot print,real-time data transmission,at the same time support multiple bus speed and hot plug etc.It plays an important role in short distance satellite communication,is an urgent need to radiation-hardened reinforcement products,to ensure the normal operation of the system in space environment.In view of the above requirements,this topic will carry out in-depth and specific research on 1394protocol,1394 bus controller architecture and principle,radiation hardening technology,and complete the radiation hardening 1394 bus controller IP design.The overall design plan of this project is to adopt a forward design method,carefully study the 1394 bus protocol standard,analyze the system architecture of the circuit,obtain the specific functions of the 1394 bus controller,design the overall architecture of the 1394bus controller,and perform module division and function description.The data flow between the various modules is planned,the interface signals between the various modules are planned and defined in detail,the RTL code is designed using the Verilog HDL language,and the functional correctness of the 1394 bus controller is verified by simulation verification and FPGA verification of the comprehensive system.Finally,through the test work after the slide,test whether the design goal is achieved.In the aspect of anti-irradiation design,we mainly consider three aspects:single event overturn effect protection,single event latch-up effect protection,total dose effect protection and protection of single event transient effect.This project has completed the design of the three path redundancy structure of the critical path,and designed all the triggers with the DICE structure,which can effectively protect the single event upset effect.For the small driving unit,the radiation resistance and latch-up resistance of the circuit can be effectively improved by increasing the contact area of the source area and adopting the design of the well contact protection ring without changing the manufacturing process.For large-scale drive units,ring-gate structure is adopted on the basis of adding protection rings.Wider channel transistors are used in the design,and the leakage current is suppressed by means of substrate inversion and power reduction.The effect of total dose effect on the circuit can be greatly reduced.The effect of short SET pulse on circuit can be eliminated by using delay filter design in global networks such as clock and reset.In order to achieve the goal of anti-irradiation design,a set of standard logic unit library and digital IO circuit unit library based on 0.13μm technology of Semiconductor Manufacturing International Corporation was designed and issued.The layout reinforcement design of anti-radiation 1394 link layer controller was completed by using commercial general EDA software and standard R2G design process.The establishment of anti-irradiation library breaks through the technology of 0.13μm anti-irradiation parameter library,and provides strong technical support for the design of similar anti-irradiation products.Finally,the subject was verified by irradiation test.The single event turnover reached 30MeV·cm~2/mg,the single event lockout reached 70MeV·cm~2/mg,and the total dose reached 100Krad(Si).