Heterogeneous Cache Coherence Requires A Common Internal Protocol


Machine learning and artificial intelligence systems are driving the need for systems-on-chip containing tens or even hundreds of heterogeneous processing cores. As these systems expand in size and complexity, it becomes too difficult to manage data flow solely through software means. An approach that simplifies software while improving performance and power consumption is to implement hardware... » read more

Performance Increasingly Tied To I/O


Speeding up input and output is becoming a cornerstone for improving performance and lowering power in SoCs and ASICs, particularly as scaling processors and adding more cores produce diminishing returns. While processors of all types continue to improve, the rate of improvement is slowing at each new node. Obtaining the expected 30% to 50% boost in performance and lower power no longer can ... » read more

Executive Insight: K. Charles Janac


K. Charles Janac, chairman and CEO of Arteris, sat down with Semiconductor Engineering to talk about what's changing in the automotive market, the impact of big data, and heterogeneous cache coherency. What follows are excerpts of that discussion. SE: What are the big changes you're seeing in semiconductor design? Janac: There are a lot of changes right now. Mobility is slowing down and b... » read more

Power, Standards And The IoT


Semiconductor Engineering sat down to discuss power, standards and the IoT with Jerry Frenkil, director of open standards at [getentity id="22055" comment="Si2"]; Frank Schirrmeister, group director of product marketing of the System Development Suite at [getentity id="22032" e_name="Cadence"]; Randy Smith, vice president of marketing at [getentity id="22605" e_name="Sonics"]; and Vojin Zivojno... » read more

A Primer For The 802.XX Physical Layer


This is the second installment of the 802.XX for the IoE series of articles. The first one was published in the August issue and addressed the Media Access Control (MAC) layer. In this article, we will examine the elements of the physical (PHY) layer of the 802.11 protocol stack. For reference, the protocol stack is shown in figure 1. The best designs, like everything else, are built on a so... » read more

Tech Talk: SoC Protocol Debug


Bernie DeLay, group director for verification IP R&D at Synopsys, talks about what goes wrong in complex SoCs, how so-called standard pieces play together, and where are the gotchas in re-use. [youtube vid=AaY_AmdjUpo] » read more

802.XX And The IoE


Ever since the first 802.11 standard was published in 1997, it has evolved to become the de facto protocol for much of the wireless networking across a wide range of devices and implementations. Today the protocol family includes 802.b 802.11a, 802.11g, 802.11n, and 802.11ac, respectively. Some of these will play a very important role in the IoE. There are other 802.xx protocols (such as 802.15... » read more