ASIC和FPGA的混合系统.doc

英文资料及中文翻译 A hybrid ASIC and FPGA Architecture FPGA is English Field Programmable Gate Array abbreviation, namely the scene programmable gate array, it is the product which in PAL, GAL, EPLD and so on in the programmable component foundation further develops. It is took in the special-purpose integrated circuit (ASIC) domain one kind partly has custom-made, both solves has had custom-made the electric circuit which the electric circuit appears the insufficiency, and has overcome the original programmable component gate number limited shortcoming. FPGA used logical unit array LCA (Logic Cell Array) this kind of new concept, the interior including has been possible to dispose logical module CLB (Configurable Logic Block), output load module IOB (Input Output Block) and internal segment (Interconnect) three parts. The FPGA essential feature mainly has: Uses FPGA to design the ASIC electric circuit, the user does not need to throw the piece production, can obtain the chip which comes in handy. - - 2) FPGA may make other all to have custom-made or partly to have custom-made the ASIC electric circuit the experimental preview. The FPGA interior has the rich trigger and the I/O pin. FPGA is in the ASIC electric circuit designs the cycle to be shortest, the development cost is lowest, one of risk smallest components. FPGA is in the ASIC electric circuit designs the cycle to be shortest, the development cost is lowest, one of risk smallest components. FPGA uses the high speed CHMOS craft, the power loss is low, may and CMOS, the TTL level is compatible. 　 It can be said that, the FPGA chip is the small batch system enhances the system integration rate, one of reliable best choices. FPGA is by deposits the procedure establishes its active status in internal RAM, therefore, time work needs to carry on the programming to internal RAM .The user may act according to the different disposition pattern, selects the different programming method. 　When adds the electricity, the FPGA