In an SoC world driven by IP, where an SoC can have hundreds of IP (sourced not only from 3[SUP]rd[/SUP] party but also from internal business units which can have a lot of legacy) integrated together, it has become essential to have a comprehensive and standard method to verify and signoff the IP. Additionally, these checks must … Read More
Tag: signoff
A Complete Timing Constraints Solution – Creation to Signoff
With the unprecedented increase in semiconductor design size and complexity design teams are required to accommodate multiple design constraints such as multiple power domains for low power design, multiple modes of operation, many clocks running, and third party IPs with different SDCs. As a result timing closure has become… Read More
Automatic RTL Restructuring: A Need Rather Than Convenience
In the semiconductor design industry, most of the designs are created and optimized at the RTL level, mainly through home grown scripts or manual methods. As there can be several iterations in optimizing the hierarchy for physical implementation, it’s too late to do the hierarchical optimizations after reaching the floor plan… Read More
Signoff Accurate Timing Analysis at Improved Run-time & Capacity
The semiconductor design sizes, these days, can easily be of the order of several hundred millions of cells, adding into the complexity of verification. Amid ever growing design sizes, it’s a must that the timing verification is done accurately. Normally Static Timing Analysis (STA) is done to check whether all clocks and signals… Read More
Signoff Summit and Voltus
Yesterday Cadence had an all-day Signoff Summit where they talked about the tools that they have for signoff in advanced nodes. Well, of course, those tools work just fine in non-advanced nodes too, but at 20nm and 16nm there are FinFETs, double patterning, timing impacts from dummy metal fill, a gazillion corners to be analyzed… Read More
DAC: Tempus Lunch
I had time for lunch on Monday. That is to say, there was a Cadence panel session about Has Timing Signoff Innovation has become and Oxymoron? What Happened and How Do We Fix It?
The moderator was Brian Fuller, lately of EE Times but now Editor-in-Chief at Cadence (I’m not sure quite what it means either). On the panel were Dipesh… Read More
Atrenta: Mentor/Spyglass Power Signoff…and a Book
Today Atrenta and Mentor announced that they were collaborating to enable accurate, signoff quality power estimation at the RTL for entire SoCs. The idea is to facilitate RTL power estimation for designs of over 50M gates running actual software loads over hundreds of millions of cycles, resulting in simulation datasets in the… Read More
RTL Signoff Theater
We have talked for years about RTL signoff, the idea that a design could be finalized at the RTL level and then most of the signoff would take place there. Then the design would be passed to a physical implementation team who would not expect to run into any problems (such as routing congestion, missing the power budget or similar problems).… Read More
Tempus: Cadence Takes On PrimeTime
Today Cadence announced Tempus, their new timing signoff solution. This has been in development for at least a couple of years and has been built from the ground up to be massively parallelized. Not just that different corners can be run in parallel (which is basically straightforward) but that large designs can be partitioned … Read More
Power, Signal, Thermal and EMI signoff
Increasingly the challenge with SoCs, especially for mobile, is not getting the performance high enough but doing so in a power-efficient manner. Handheld devices running multiple apps need high-speed processors that consume extremely low levels of power both in operating and standby modes. In the server farm, the limit is … Read More