tag: RISC-V

Configuring Processors In The Field
By Brian Bailey - 08 Jun, 2020 - Comments: 0

The convergence of two technologies, extensible processors and embedded FPGAs, is enabling the creation of processors that can be dynamically configured in the field. But it's not clear if there is a need for them or how difficult would it be to program them. This remains an open question even though there is evidence of its usefulness in the past and new products are expected to reach the mark... » read more

The Increasingly Ordinary Task Of Verifying RISC-V
By Ann Mutschler - 03 Jun, 2020 - Comments: 0

As RISC-V processor development matures and its usage in SoCs and microcontrollers grows, engineering teams are starting to look beyond the challenges of the processor core itself. So far, the majority of industry verification efforts have focused on ISA compliance to standardize the RISC-V core. Now the focus is shifting to be how to handle verification as the system grows, especially as this... » read more

What’s So Important About Processor Extensibility?
By Brian Bailey - 28 May, 2020 - Comments: 1

While the ability to extend a processor is nothing new, market dynamics are forcing a growing percentage of the industry to consider it a necessary part of their product innovation. From small IoT functions to massive data centers and artificial intelligence, the need to create an optimized processing platform is often the only way to get more performance or lower power out of the silicon area ... » read more

The Hidden Costs of Open Source
By Roddy Urquhart - 23 Apr, 2020 - Comments: 0

It is often implied that if you use an open source processor core there are no costs associated with using it. Of course, the RTL may be free of a license fee and royalties and it might be possible to access a free of charge toolchain for RISC-V, but there are plenty of hidden costs associated with using the core in a real integrated circuit design. If you are using the core in a product... » read more

Practical Processor Verification
By Brian Bailey - 23 Apr, 2020 - Comments: 0

Custom processors are making a resurgence, spurred on by the early success of the RISC-V ISA and the ecosystem that is rapidly building around it. But this shift is amid questions about whether processor verification has become a lost art. Years ago custom processors were common. But as the market consolidated around a handful of companies, so did the tools and expertise needed to develop th... » read more

Using Processor Trace At The System Level
By Ann Mutschler - 23 Apr, 2020 - Comments: 0

The race to process more data faster using less power is creating a series of debug challenges at the system level, where developers need to be able to trace interactions across multiple and often heterogeneous processing elements that may function independently of each other. In general, trace is a hardware debug feature that allows the run-time behavior of IP to be monitored. More specific... » read more

Re-Imagining The GPU
By Susan Rambo And Ed Sperling - 23 Apr, 2020 - Comments: 0

John Rayfield, CTO at Imagination Technologies, sat down with Semiconductor Engineering to talk about RISC-V, AI, and computing architectures. What follows are excerpts of that conversation. SE: What your plans are for RISC-V? Rayfield: We're actively finalizing the integration of RISC-V cores into future-generation GPUs. That work has been going on for several months. Moving forward, we'... » read more

Power Becomes Bigger Concern For Embedded Processors
By Ann Mutschler - 15 Apr, 2020 - Comments: 0

Power is emerging as the dominant concern for embedded processors even in applications where performance is billed as the top design criteria. This is happening regardless of the end application or the process node. In some high-performance applications, power density and thermal dissipation can limit how fast a processor can run. This is compounded by concerns about cyber and physical secur... » read more

Medical, Industrial & Aerospace IC Design Changes
By Ann Mutschler - 30 Mar, 2020 - Comments: 0

Medical, industrial and aerospace chips are becoming much more complex as more intelligence is added into these devices, forcing design teams to begin leveraging tools and methodologies that typically have been used only at the leading-edge nodes for commercial applications. But as with automotive, the needs of these systems are changing quickly. In addition to strict quality, safety and sec... » read more

Why It’s So Hard To Create New Processors
By Brian Bailey - 26 Mar, 2020 - Comments: 1

The introduction, and initial success, of the RISC-V processor ISA has reignited interest in the design of custom processors, but the industry is now grappling with how to verify them. The expertise and tools that were once in the market have been consolidated into the hands of the few companies that have been shipping processor chips or IP cores over the past 20 years. Verification of a pro... » read more

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