4G/5G Encoder-Decoder IP Use Cases and Performance Validation in Emulation and Post Silicon using Portable Stimulus Standard’s HSI
TimeMonday, July 11th5pm - 6pm PDT
LocationLevel 2 Exhibit Hall
Engineering Track Poster
DescriptionFor silicon validation, it is critical to have a test framework which can seamlessly scale from IP level to subsystem level to SoC level test cases. In contrast to the mature flows & methodologies ecosystem that exists for pre-silicon verification, post-silicon validation is still heavily dependent on ad-hoc test development and pointed solutions. This makes it very difficult to develop a test suite which can systematically scale and be re-used across similar/derivate projects. Our proposed methodology using PSS-HSI sequences enables Pre-Silicon and Post-Silicon teams to use the same test content, and collaborate on developing HSI sequences, while eliminating the duplication of effort needed to create driver sequences for SV-UVM and core-based environments.
Since its initial release in July 2018, the Portable Test and Stimulus Standard (PSS) has provided a specification to create a single representation of stimulus and test scenarios usable by a variety of users across many levels of integration under different configurations. This representation facilitates the generation of diverse implementations of a scenario that run on a variety of execution platforms, including, but not necessarily limited to, simulation, emulation, FPGA prototyping, and post-silicon.
The PSS HSI layer enables users to write a single implementation of device driver logic in portable terms:
- Abstracts the mechanics of lower-level register access.
- HSI provides much more than simple register abstraction, it provides a representation of memory, registers, interrupts, synchronization etc, enabling efficient way to implement driver logic.
- HSI sequences can be mapped to both UVM-agent based environments and embedded core-based environments.
Combining the constraint-randomization and code-generation features of PSS tool along with HSI provides a powerful way for test-case automation.