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Archive for November, 2014

7 reasons I’m thankful for DAC and EDA

Saturday, November 22nd, 2014

Thanksgiving is here so it’s likely to be a slow week in the EDA industry. Of course, like much else in our culture, this event has been co-opted by rampant media messages to shop and consume. Already I’ve seen lots of stories about Black Friday, mostly discussing whether the whole idea of a 24-hour window is now moot given Cyber Monday and the reality that the holiday shopping season now starts right after Halloween and stretches into January.

As a German I know I must tread lightly when writing about the most American of holidays. Turkey is not all that big on holiday menus back home and as I’ve written about in an earlier EDA Café post, football (or rather fussball) will always mean something different to me, no matter the success of the regional favorite Seahawks or my staff’s obsession with making their weekly fantasy picks. I’ll just say that I’ve grown to like some of the old-fashioned aspects of the holiday (a good meal with friends followed by a hike with the dogs, who demand to get out regardless of the weather). I can’t help but being thankful that EDA is not part of this annual shopping lunacy, at least not directly. Last I looked, the big three EDA vendors aren’t offering holiday-themed sales and I’ve never yet seen a line out the door for a piece of technical software. (That said, DAC attendees have been known to queue up for the free coffee, beer and wine that exhibitors offer almost every day — as I see it, much more reasonable behavior than waiting outside a superstore before it opens.)

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Developing USB 3.1 IP? Essential Updates To USB 3.0 You Need To Know

Tuesday, November 4th, 2014

Introduction

USB-3-1-vs-USB-3-Technical-ComparisonInitially, USB provided two speeds (12 Mbps and 1.5 Mbps). With rapid adoption and success of the USB standard and the increasing power of PCs and computing devices, the USB 2.0 specification was defined in the year 2000. USB 2.0 provided upto 480 Mbps of bandwidth while keeping software compatibility with earlier USB applications. With ever increasing bandwidth requirements, in 2008 the USB 3.0 specification (providing 5 Gbps bi-directional bandwidth) was released. USB 3.1 is the next logical step in this progression. It provides 10Gbps of bi-directional bandwidth while maintaining backward compatibility with previous USB versions. To know more about USB 3.1 Verification solution click here.

In this post, we will analyze the technical differences between the USB 3.1 and USB 3.0 specifications. The aim is to enable people familiar with USB 3.0 to quickly understand the main aspects of USB 3.1.

 We will analyze the PHY, Link and Protocol layers and list out the major ways in which USB 3.1 differs from USB 3.0.

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