454Fall07HW1_Solution

454Fall07HW1_Solution - ECEN 454 Digital Integrated Circuit...

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ECEN 454 Digital Integrated Circuit Design Fall 2007 Homework 1 Solutions 1. (5 points) A large-scale fast prototyping system has been produced by using a very large array of field programmable logic arrays (FPGAs). a. Discuss the pros (features) and cons (weaknesses) of such prototyping systems for proof of design concepts and verification in view of effort and speed performance of the design. b. How would you compare the hardware prototyping method with computer simulation method? Answer : a. Pros and cons Pros: Short turn-around time. No manufacturing steps and therefore low cost. Verification is based on hardware performance, which is more reliable than software simulation. The reconfigurability allows designers to detect/debug conceptual/functional errors and compare possible architectures. Cons: Circuit speed is slower than ASIC or custom design chips. Thus, the validation is not exactly the same as the eventual products. FPGA uses more area and has different layout style from ASIC or custom
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454Fall07HW1_Solution - ECEN 454 Digital Integrated Circuit...

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