Parameters and OVM: Can’t They Just Get Along?
White Paper
ABSTRACT
This paper discusses the methods that have proven useful for verifying a highly parameterized DUT within an OVM testbench. This includes enhancing the default OVM functionality to create parameterized OVM tests and, consequently, testbenches that still allow the use of +OVM_TESTNAME. Techniques will be discussed for dealing with parameterized virtual interfaces, efficiently passing parameters down through the testbench hierarchy from the OVM test, and determining when to use parameters versus alternative methods. The paper will discuss optimizations for improving simulation throughput when using parameters, including actual numbers illustrating the efficiency improvements. Finally, the paper will describe options for ensuring that a parameterizable DUT is fully verified.
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