一种基于测例层模型的功能验证方法

A Function Verification Method Based on the Models at Test Case Level

针对集成电路功能验证的完整性和重用性问题,使用测例层模型,构建协议功能完整覆盖的验证计划,并使用UVM验证方法和库函数搭建验证环境,对一款符合GJB 800/900 MHz RFID芯片系统的设计进行功能验证。所提出的测例层模型具备通用性。填充协议内容后的模型,在满足相同协议的设计之间可重用,在相似协议或非完整协议的设计中也可重用,即面向协议的测例层VIP及其构建方法。最终保证了GJB协议芯片的验证覆盖率,在TSMC 0.18μm工艺流片成功。

Aiming at the completeness and reusability in the integrated circuit function verification,the models at the test case level are proposed to build a protocol-oriented verification plan with complete functional coverage.The models cooperate with a verification environment built by UVM method and UVM library for an 800/900 MHz RFID system complied with GJB protocol. The models at test case level have generality. The models filled with protocol content meet the reusability between designs complied with the same protocol and the reusability between similar or nonholonomic protocols. That is a protocol-oriented VIP at the test case level and its construction method. Finally the models guarantee the verification coverage of the GJB protocol chip to tape out successfully in TSMC 0.18 μm.