Moving From AMBA ACE to CHI For Coherency


Introduced back in 2011, ACE (AXI Coherency Extensions) grew from the existing AXI protocol to satisfy the cache coherency maintenance demands of SoCs with multi core processors and shared caches in smart phones, mobile computers, and servers. It added new channels for cache communication, extra signals to allow new transaction for coherency support, and five state model for caches. AXI + A... » read more

Run Realistic Software For Full Chip Power Signoff


In the real world, the demand for AI chips is driving the trend towards bigger, smarter, and faster SoC designs. Consequently, low-power design, analysis, verification, and power signoff challenges are not getting any easier as chip designs deploy increasingly smaller geometries that dissipate more and more power. Despite this dilemma, the quest for further power reductions continues apace. ... » read more

The Physics Of Ports And Associated Ground For EM Simulators Serving RF Designs


The use of ports in electromagnetic (EM) simulators has evolved and matured over the years to make real-world design simulations practical. Having a foundational understanding of ports provides an intuitive skill in their proper selection and use in conjunction with circuit simulation. In this white paper, we examine ports common to EM simulators, which are the most common simulators for microw... » read more

Shifting Left In P&R With In-Design Signoff Fill For Faster And More Accurate Tapeouts


Place and route (P&R) engineers are always on the lookout for ways to optimize their design flows to ensure designs meet their design power, performance, and area (PPA) goals while also hitting tapeout deadlines. The introduction of the Calibre RealTime Digital interface made Calibre nmDRC and Calibre nmDRC Recon design rule checking (DRC) verification available during the P&R process t... » read more

How Safety Requirements For Autonomous Vehicles Will Reinvent Fuse And Relay Boxes In Automotive Power Distribution


Open up the bonnet of any modern automobile and many of us would be hard-pressed to find anything that we could fix ourselves. With pipes and cables almost artistically integrated into the engine bay, and sleek plastic covers fitted everywhere, there is very little that can still be recognized, yet alone repaired. Perhaps the only location where we feel comfortable is the “fuse box”, or pow... » read more

Veloce Prototyping Solutions Accelerate Verification Of HPC AI-Enabled SoCs


This white paper goes through the journey of understanding how to meet quality requirements and accelerate time-to-market for your company’s latest flagship high performance computing (HPC) artificial intelligence (AI)-enabled system-on-chip (SoC) design. The starting point in the journey explores the use cases for designs illustrating the impact HPC AI-enabled systems and resources have on o... » read more

Simulation Workflow For Efficiency Calculation Of A High-Performance Electric Powertrain


In battery electric vehicles the efficiency of the powertrain has a big impact on driving range and performance. As the overall efficiency of the electric powertrain is typically more than 90%, further optimization is challenging. Especially in high-performance electric vehicles, the efficiency over one or multiple laps on a racing track is crucial. It requires accurate estimation of power loss... » read more

Design Meets EDA: Gaps And Countermeasures In Analog/Mixed-Signal IC Design


Along the path from specification to silicon, the design of analog/mixed-signal chips comprises a variety of challenges. They are of technological, methodological, organizational, communicational, and business nature. Additionally, large gaps are to be managed among the individual challenges. Still up to now, approaches such as the “four eye principle” are used even in industrial practice i... » read more

Arm Neoverse N1 Core: Performance Analysis Methodology


The Arm Neoverse ecosystem is growing substantially with many Arm hardware and software partners developing applications and porting their workloads onto Arm-based cloud instances. With Neoverse N1 based systems becoming widely available, many real-world workloads are showing very competitive performance and significant cost savings when compared to legacy systems. Some recent examples include:... » read more

Big Changes Ahead For Inside Auto Cabins


The space we occupy inside our vehicles is poised to change from mere enclosure to participant in the driving experience. Whether for safety or for comfort, a wide range of sensors are likely to appear that will monitor the “contents” of the vehicle. The overall approach is referred to as an in-cabin monitoring system (ICMS), but the specific applications vary widely. “In-cabin sensing... » read more

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