Power Optimization Requires Higher-Level Thinking


By Ann Steffora Mutschler With consumer demand—much of it for power sensitive mobile devices—driving the bulk of semiconductor design activity, it would seem obvious that the way chips are designed would have changed to reflect that. But have they? From an EDA perspective, the term ‘system level’ is used to mean ‘product level’ but this may not be enough, especially when it come... » read more

Power Optimization Requires Higher-Level Thinking


By Ann Steffora Mutschler With consumer demand—much of it for power sensitive mobile devices—driving the bulk of semiconductor design activity, it would seem obvious that the way chips are designed would have changed to reflect that. But have they? From an EDA perspective, the term ‘system level’ is used to mean ‘product level’ but this may not be enough, especially when it come... » read more

IoT Brings Power Awareness Opportunities


By Ann Steffora Mutschler Limited only by imagination, the “Internet of Things” (IoT) is breathing new life into many segments of the semiconductor industry that are losing hopes for growth in the SoC market. In virtually any vertical market space, from automotive to consumer, from industrial to networking, one can imagine the potential for what IoT concepts could realize including higher ... » read more

Hardware Accelerators Earn Their Keep


By Ann Steffora Mutschler Hardware accelerators have been used for years, but with the proliferation of multicore chips and SoCs their use is evolving. Multicore processors have reduced the reliance on hardware accelerators, but that doesn’t mean the number of hardware accelerators is shrinking. The insatiable demand for performance while also reducing power consumption means that acceler... » read more

Raising The IP Abstraction Level


By Ed Sperling An increasing reliance on commercial and re-used IP and more emphasis placed on software development is adding even more pressure onto semiconductor design teams to figure out the benefits and limitations of myriad possible choices earlier in the design process. Design teams already are under pressure to meet increasingly tighter market deadlines, and it is stressing every pa... » read more

The Controversial Spec


By Ann Steffora Mutschler Design sophistication and complexity has made it increasingly difficult to fully specify the expected behavior of a block in an SoC, but this is necessary for design and verification teams. How do you write a “good” and “complete” specification of functionality? It turns out that the discussion of defining what a good and complete specification is and how t... » read more

Watching And Waiting For DFP


By Ann Steffora Mutschler Although the semiconductor industry has been talking about the need to optimize SoC designs for power for many years, it is safe to say it’s still in the very early stages of the 'Design for Power' approach. That’s not to say that methodologies and tools are not in place. There are actually a number of options available, depending on the level of abstractio... » read more

What’s Missing In Low-Power Verification


By Ed Sperling Ask two engineers what low-power verification is and you’ll likely get the same checklist that includes confidence in the overall design, good coverage, a long list of corner cases, and other items in a checklist. Ask them how to reach that goal you’ll almost certainly get different answers—or maybe no answers at all. Power has emerged as a ubiquitous concern in design,... » read more

Lessons Learned In 4G LTE


By Ann Steffora Mutschler While 4G LTE has moved into the mainstream, there are lessons to be learned about these very complex modems, especially from the perspective of balancing power and performance. The road to mainstream wasn’t exactly smooth sailing. “4G LTE initially got a bad rap for battery life, for power consumption,” said Pete Hardee, low-power design solution marketin... » read more

Smarter Clock Gating


By Ghulam Nurie With the proliferation of mobile devices, power consumption and battery life have emerged as significant concerns during chip design. There are many different techniques used for power optimization, but of all the different techniques, clock gating is the most popular and widely used technique, according to a blind, anonymous survey emailed to several thousand participants worl... » read more

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