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Let's say I have the following DUT. The UVM environment contains a chain of models/predictors. Input data flows down this chain and generates the expected CHIP output, which is compared to actual. Pros: verifies top-level functionality. Cons: Does not verify block level functionality. A good start, but I'd like to also verify the blocks in a system setting. So, I create block-level environments, then reuse them at the top level. Awesome, but wait a minute. I still need the top-level verification (Input-to-Output) like in the first example. However, all 3 of my block predictors are being used in their corresponding environments' scoreboards, hooked up to the RTL, via agents. How does one do both? Surely I'm not supposed to instantiate duplicate copies of my block level predictors to create the end-to-end model chain...
One aspect that was not covered in the UVM Basics series posted by Cadence in May 2012 was the register layer (aka UVM_REG). In this new video series we are giving an overview of the concepts, components and applications of the UVM register layer. The new video series is broken up into twelve clips: Introduction Testbench Integration Adapter Predictor & Auto Predict Register Model & Generation IP-XACT Register Model Classes Register API & Sequences Access Policies Frontdoor & Backdoor Predefined Sequences Demonstration You are now registered for success! (sorry, bad pun. ) =Adam Sherilog, Cadence