SJTAG

SJTAG Newsletter
http://www.sjtag.org

Issue 19 - Q1-2012

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From the Chair

ITC 2011 is over and the planning for ITC 2012 is already well underway, with the Call for Papers out and a firm submission deadline of March 12.

While the SJTAG material was generally quite well received, there was a disappointingly low turn out for our Fringe Meeting. Perhaps the fact that the meeting rooms were rather "off the beaten track" of the majority of attendees had some bearing, or maybe the attraction of some of the technical papers running at the same time was just too irresistable!

ITC 2011

I had wondered if the Disneyland venue would perhaps detract from the business of the conference, but I have to say in all honesty that it did not. While the theming was apparent throughout the venue it was suitably subdued in the conference facilities, and Disney's expertise in catering for large numbers of visitors was evident.

ITC Test Week 2012 will again be held at the Disneyland Hotel, Anaheim, returning to it's more usual November date for this year.

http://www.itctestweek.org/


TAP Bypass Element

2-Wire Topologies

Some time ago, our group set out to prepare a set of "primitives" that could be used to describe various constructs and devices within an SJTAG architecture. Those primitives were based on the conventional 4/5-wire TAP described by IEEE Std. 1149.1.

With 1149.7 being around a year old now, the group realised that it needed to take a fresh look at the primitives and consider how these might need to change to accomodate the topologies supported by 1149.7, in particular the 2-wire networks. We have to recognize that 1149.1 and 1149.7 networks may co-exist within a single design which can complicate the requirements for gateway devices and requiring greater forethought and planning. As an example, the 5-wire diagram at the right needs to be amended to a 2-wire topology.

This is an ongoing activity and we certainly don't have all the answers yet, so if you want to add your contributions or simply observe the proceedings then please join us or post your comments on our forums.

http://forums.sjtag.org/viewtopic.php?f=3&t=158


Next Newsletter

The Q2-2012 edition of this newsletter will be published towards the end of April 2012. Copies of past newsletters are always available on the SJTAG website.

http://www.sjtag.org/newsletters.html


News from the website

A selection of recent RSS/ATOM news items from the website:

Meeting Minutes from ITC Fringe Meeting, September 21st (Issued: Sun, 03 Oct 2011 18:10:00 GMT)

The minutes from the Fringe Meeting held on September 21st during ITC 2011 have now been published. General discussion on Group progress to date and possible avenues for establishing the basis for the PAR.

URL: http://www.sjtag.org/minutes/itc110921.html


Meeting Minutes from January 23rd (Issued: Mon, 30 Jan 2012 19:42:00 GMT)

The minutes from the weekly meeting held on January 23rd, 2011 have now been published. Featured discussions: a. Extending the Primitives descriptions to address 2-wire topologies, b. Preparing the Q1 2012 SJTAG Newsletter.

URL: http://www.sjtag.org/minutes/minutes120123.html


Meeting Minutes from January 16th (Issued: Tue, 24 Jan 2012 20:18:00 GMT)

The minutes from the weekly meeting held on January 16th, 2011 have now been published. Featured discussions: a. Refresher on discussions from December 2011, b. Extending the Primitives descriptions to address 2-wire topologies.

URL: http://www.sjtag.org/minutes/minutes120116.html


Meeting Minutes from January 9th (Issued: Tue, 24 Jan 2012 20:18:00 GMT)

The minutes from the weekly meeting held on January 9th, 2011 have now been published. Featured discussions: a. Industry sector breakdown - Harrison Miles.

URL: http://www.sjtag.org/minutes/minutes120109.html


Meeting Minutes from December 12th (Issued: Tue, 24 Jan 2012 20:17:00 GMT)

The minutes from the weekly meeting held on December 12th, 2011 have now been published. Featured discussions: a. A Revisit to our Primitives discussion.

URL: http://www.sjtag.org/minutes/minutes111212.html


Meeting Minutes from December 19th (Issued: Wed, 11 Jan 2012 19:41:00 GMT)

The minutes from the weekly meeting held on December 19th, 2011 have now been published. Featured discussions: a. Relevance of languages identified in 2009 survey to structure and control.

URL: http://www.sjtag.org/minutes/minutes111219.html


Meeting Minutes from December 5th (Issued: Wed, 11 Jan 2012 19:40:00 GMT)

The minutes from the weekly meeting held on December 5th, 2011 have now been published. Featured discussions: a. Meeting schedule for 2012, b. Newsletter schedule, c. Reaffirmation of officers, d. Revisit of primitives discussion.

URL: http://www.sjtag.org/minutes/minutes111205.html


Meeting Minutes from November 28th (Issued: Sun, 11 Dec 2011 19:39:00 GMT)

The minutes from the weekly meeting held on November 28th, 2011 have now been published. Featured discussions: a. Merits/demerits of basing our 'Dot0' on: Using Test Mode or Chain management, b. Is there an 'ideal SJTAG gateway'?

URL: http://www.sjtag.org/minutes/minutes111128.html


Meeting Minutes from November 21st (Issued: Tue, 29 Nov 2011 21:03:00 GMT)

The minutes from the weekly meeting held on November 21st, 2011 have now been published. Featured discussions: a. Test Mode and Chain Selection as the basis of the initial SJTAG standard.

URL: http://www.sjtag.org/minutes/minutes111121.html


Meeting Minutes from November 14th (Issued: Tue, 29 Nov 2011 21:03:00 GMT)

The minutes from the weekly meeting held on November 14th, 2011 have now been published. Featured discussions: a. Updates to the SJTAG website, b. Structure and behavior in the Programming/Updates Use Case.

URL: http://www.sjtag.org/minutes/minutes111114.html


Meeting Minutes from October 17th (Issued: Wed, 16 Nov 2011 21:27:00 GMT)

The minutes from the weekly meeting held on October 17th, 2011 have now been published. Featured discussions: a. Structure and behavior in the Programming/Updates Use Case and the potential for the future use of instrumentation.

URL: http://www.sjtag.org/minutes/minutes111017.html


Meeting Minutes from October 10th (Issued: Wed, 19 Oct 2011 20:20:00 GMT)

The minutes from the weekly meeting held on October 10th, 2011 have now been published. Featured discussions: a. Relationship between SJTAG and other new and emerging standards.

URL: http://www.sjtag.org/minutes/minutes111010.html


Meeting Minutes from October 3rd (Issued: Mon, 10 Oct 2011 20:51:00 GMT)

The minutes from the weekly meeting held on October 3rd, 2011 have now been published. Featured discussions: a. Revisit the original SJTAG objectives.

URL: http://www.sjtag.org/minutes/minutes111003.html


Meeting Minutes from September 26th (Issued: Sun, 05 Oct 2011 18:17:00 GMT)

The minutes from the weekly meeting held on September 26th, 2011 have now been published. Featured discussions: a. Revisit the original objectives.

URL: http://www.sjtag.org/minutes/minutes110926.html


Meeting Minutes from August 29th (Issued: Wed, 05 Oct 2011 18:13:00 GMT)

The minutes from the weekly meeting held on August 29th, 2011 have now been published. Featured discussions: a. Summer Newsletter, b. September Meeting Schedule.

URL: http://www.sjtag.org/minutes/minutes110829.html


Meeting Minutes from September 12th (Issued: Sun, 03 Oct 2011 18:06:30 GMT)

The minutes from the weekly meeting held on September 12th, 2011 have now been published. Featured discussions: a. Limited discussion of FPGAs and Processors.

URL: http://www.sjtag.org/minutes/minutes110912.html


Meeting Minutes from August 22nd (Issued: Mon, 12 Sep 2011 19:59:02 GMT)

The minutes from the weekly meeting held on August 22nd, 2011 have now been published. Featured discussions: a. ITC Poster, b. Newsletter, c. Meeting schedule, d. Selection of further test scenarios to explore.

URL: http://www.sjtag.org/minutes/minutes110822.html


Meeting Minutes from August 15th (Issued: Mon, 12 Sep 2011 19:59:01 GMT)

The minutes from the weekly meeting held on August 15th, 2011 have now been published. Featured discussions: a. Newsletter, b. SJTAG poster for ITC, c. Development of a simple block diagram and concepts relating to differential/SERDES interconnect test and memory test.

URL: http://www.sjtag.org/minutes/minutes110815.html


Meeting Minutes from August 8th (Issued: Mon, 12 Sep 2011 19:59:00 GMT)

The minutes from the weekly meeting held on August 8th, 2011 have now been published. Featured discussions: a. Development of a simple block diagram and concepts relating to differential/SERDES interconnect test and memory test.

URL: http://www.sjtag.org/minutes/minutes110808.html