Challenges In RISC-V Verification

By Ed Sperling - 02 Apr, 2024 - Comments: 0

Designing a single-core RISC-V processor is relatively easy, but verifying it and debugging it is a different story. And it all becomes more complicated when multiple cores are involved, and when those cores need to be cache-coherent. Ashish Darbari, CEO of Axiomise, talks with Semiconductor Engineering about using assertions and formal verification technology to find bugs and prove coherency i... » read more

Cache Coherency In Heterogeneous Systems

By Ed Sperling - 01 Apr, 2024 - Comments: 0

Until recently, coherency was something normally associated with DRAM. But as chip designs become increasingly heterogeneous, incorporating more and different types of compute elements, it becomes harder to maintain coherency in that data without taking a significant hit on performance and power. The basic problem is that not all compute elements fetch and share data at the same speed, and syst... » read more

Integration Challenges For RISC-V Designs

By Ed Sperling - 27 Feb, 2024 - Comments: 0

One of the big draws of RISC-V is that it allows design teams to create unique chips or chiplets and to make modifications to the instruction-set architecture. That extra degree of freedom also creates some issues when it comes to integrating those designs into packages or systems because they may require non-standard connectivity approaches. Frank Schirrmeister, vice president of marketing at ... » read more

Densification Of RF Designs

By Ann Mutschler - 20 Dec, 2023 - Comments: 0

It’s challenging enough to deal with wireless signals at the 5G and 6G frequencies. But with increased density in chips crammed into smaller packages, higher power, beam forming, and MIMO, design requirements are very different than in the past. Simple parasitic extraction no longer is sufficient. Daren McClearnon, product manager for RF and microwave simulation at Keysight, talks about the n... » read more

Improving AI Productivity With AI

By Ed Sperling - 28 Nov, 2023 - Comments: 0

AI is showing up or proposed for nearly all aspects of chip design, but it also can be used to improve the performance of AI chips and to make engineers more productive earlier in the design process. Matt Graham, product management group director at Cadence, talks with Semiconductor Engineering about the role of AI in identifying patterns that are too complex for the human brain to grasp, how t... » read more

What To Do About Electrostatic Discharge

By Ed Sperling - 20 Nov, 2023 - Comments: 0

Electrostatic discharge is a well-understood phenomenon, but it’s becoming more difficult to plan for as single chips are replaced by multiple chips or chiplets in a package, and as the density of components continues to increase with each new node. In both cases, the probability for failure increases unless these sudden shocks are addressed in the design. Dermott Lynch, director of product m... » read more

Coding And Debugging RISC-V

By Ann Mutschler - 06 Nov, 2023 - Comments: 0

As monolithic device scaling continues to wind down and evolve toward increasingly heterogeneous designs, it has created an inflection point for chip architects to create customized cores that are much more energy efficient and faster than off-the-shelf processors. Zdeněk Přikryl, CTO of Codasip, talks about where RISC-V fits into this picture, using a modular ISA and custom instruction layer... » read more

DSP Techniques For High-Speed SerDes

By Ed Sperling - 23 Oct, 2023 - Comments: 0

Sensors everywhere, more connected devices, and the rollout of smart everything has created a flood of data. The question now is how to best handle all of that data, where to process it, and how to move it locally and to the outside network. Madhumita Sanyal, technical product manager at Synopsys, talks about the need for continuous performance improvements in SerDes, PCIe, NRZ, and PAM4, and w... » read more

Memory And High-Speed Digital Design

By Ann Mutschler - 18 Oct, 2023 - Comments: 0

As DRAM gets faster, timing constraints, jitter, and signal integrity become harder to control. The real challenge is to understand what can go wrong early in the design process, and that becomes more complex with each new version of memory and higher signal speeds. Stephen Slater, product manager for EDA products at Keysight, talks about how simulation can be applied to these issues, what to t... » read more

Verifying A RISC-V Processor

By Ed Sperling - 17 Oct, 2023 - Comments: 0

Verifying an SoC is very different than verifying a processor due to the huge state space in the processor. In addition to the tools needed for an SoC, additional tools are required for a step and compare environment. Larry Lapides, vice president at Imperas, talks about the need to verify asynchronous events like interrupts, how to compare a reference model to RTL, and the need for both hardwa... » read more

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Challenges In RISC-V Verification

Cache Coherency In Heterogeneous Systems

Integration Challenges For RISC-V Designs

Densification Of RF Designs

Improving AI Productivity With AI

What To Do About Electrostatic Discharge

Coding And Debugging RISC-V

DSP Techniques For High-Speed SerDes

Memory And High-Speed Digital Design

Verifying A RISC-V Processor

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